Archive

25 June 2009, Volume 46 Issue 6 Previous Issue    Next Issue
---
Article


For Selected:

Download Citations EndNote Ris BibTeX

Toggle Thumbnails

Article

Select

Effects of Interaction of Water and Nitrogen on the Yield and Compnent Factor of Hybrid Cotton under Mulch Drip Irrigation during Flowering-boll Stage SUN Hui-jian;MA Fu-yu;ZHANG Wang-feng;ZHENG Zhong;LIU Hao;CUI Jing;WU Yan-qin 2009, 46(6): 1149-1157.  Abstract ( )   [Objective]A field experiment,which was conducted to evaluate the effects of interaction of water management and nitrogen fertilizer on yield and water use efficiency of hybrid cotton No. 2 Shiza during flowering-bolling stage in National Agricultural Science and Technology Area in Shihhotze in 2008,[Method]included seven water treatments (moderate drought 55; FC,55; field capacity of 0-60 cm profile under drip irrigation before irrigation),mid-drought (65; FC),contrast (75; FC),low irrigation quantity and high frequency (LH) (3 d 18 mm,irrigation with 18 mm every 3 days),high irrigation quantity and high frequency (HH) (3 d 30 mm),low irrigation quantity and low frequency (LL) (5 d 18 mm),high irrigation quantity and low frequency (HL) (5 d 30 mm)) and four nitrogen treatments (0,(fertilizing nitrogen with 0 kg/hm~2 ),150,300 and 450 kg/hm~2). [Result]The results showed that cotton yield decreased significantly under mid-water stress and moderate water stress during flowering-bolling stage under the condition of N0 N treatment and increased insignificantly with LL irrigation in each levels of N-application. The cotton yield with N450 kg/hm~2 N-application was the highest under 75;FC irrigation condition,and cotton yield under the irrigation with 3 d 18 mm and 5 d 30 mm.When N application,the highest yield of 300 kg/hm~2 was given,the seed cotton yield reached the highest level.With nitrogen increasing,the cotton yield decreased significantly in LH water treatment. Therefore,when treated with 5 d 30mm-N 300,the seed cotton had the highest yield,which was 7 426 kg/hm~2,the treatment of 3 d 18 mm-N300 with seed cotton yield 7 018 kg/hm~2 was the second selection of nitrogen and irrigation strategy. From the perspective of yield components of cotton,boll numbers per hectare,boll weight and lint were decreased significantly when drought or excessive water were used during flowering-bolling stage.[Conclusion]5 d 30 mm-N300 and 3 d 18 mm-N300 were the optimization irrigation strategy and nitrogen for hybrid cotton in Northern Xinjiang.

Select

Molecular Markers of Screening of the Disease-resistance Gene of Cotton Using SRAP-BSA Technique LIU Yan;CHEN Quan-jia;QU Yan-ying;LIANG Ya-jun;LI Pei-yu;ZHU Biao;L(U) Yu-qiang 2009, 46(6): 1158-1163.  Abstract ( )   [Objective and Method]In this experiment,the upland cotton resistant parent Liaomian 18 and sensitive parent Junmian 1 and their F_2 generation were used for identification of the molecular markers linked to disease-resistance gene of cotton by SRAP-BSA,[Result]88 pairs of primers were used to amplify the parents gene and two gene pools. When 3 pairs of primers were found in parents and two pools,three pairs of primers were screened from 88 paris of SRAP primers.[Conclusion]The fragment existed in the resistant plants and F population,they were indicated that the SRAP marker were closely linked to disease-resistance gene of cotton.

Select

Genetic Diversity of Carthamus tinctorius L.in Xinjiang Based on ISSR and RAPD Analysis GE Juan;YUE Qing-ni;WANG Lei;ZHANG Xia;WANG Shao-ming 2009, 46(6): 1164-1170.  Abstract ( )   [Objective and Method]The genetic diversity of 29 Carthamus tinctorius L.cultivated varieties in Xinjiang were tested with RAPD and ISSR techniques.[Result]156 and 112 DNA bands were amplified with 20 RAPD and 18 ISSR primers respectively,and the percentage of polymorphic bands (PPB) was 92.31; and 93.77; respectively. Effective number of alleles Ne,Nei's index H ,the Shannon information index were 1.508 1 and 1.513 7,0.311 5 and 0.341 6,0.473 8 and 0.479 8 respectively.The UPGMA clustering indicated that the genetic distance of RAPD and ISSR were 0.108 2～2.054 1 and 0.123 4～2.153 5 .[Conclusion]These above results showed that there was relatively rich genetic variations in safflower. Comparison between the two marker systems showed that ISSR was better than RAPD in terms of reproducibility and ability of detecting genetic polymorphism.Mantel test revealed that the analyzed result of the two marker had significant correlation r=0.963.

Select

Effects of Enhanced UV-B Radiation on Root and Yield of Cotton WANG Jin;ZHANG Jing;ZHAI Xiao-juan;BAI Shu-jun;TIAN Li-ping 2009, 46(6): 1171-1176.  Abstract ( )   [Objective]The main aim of the present paper was to study the effects of UV-B radiation on biological trait,root growth ,yield and germplasm of cotton under the field experiment.[Method]Based on the sun light,4 treatments were designed to inhance UV-B radiation of cotton,the normal dose of every treatment radiation were follows:0 kJ/m~2 (R0),0.5 kJ/m~2(R1),1.0 kJ/m~2 (R2) and 1.5 kJ/m~2 respectively.The effect of enhancing UV-B radiation on biological trait index such as leaves,plant height,stem diameter,leaf area and the index of root growth,yield and quality of cotton were investigated.[Result]Results show that with the extension of radiation time and radiation enhanced leaf visible injury became more serious,height and stem diameter of R1,R2 and R3 reached a significant difference(P<0.05),all differences of leaf area treated reached a significant level,dry weight per plant reached a best significant level(P<0.01); compared with the control,the root morphology changed dramatically,length of root of R1,R2 and R3 have been reduced compared with that of control;quality and yield of cotton was significantly lower than that of control.[Conclusion]The enhanced UV-B radiation made a close relation between aerial part and root part of cotton,the greater UV-B radiation,the geater effect on cotton.

Select

A Study on High-yielding Performence in Different Breed of Hybrid Cotton LOU Shan-wei;LUO Xin-ning;GUO Ren-song;GAO Yun-guang;ZHAO Qiang;ZHANG Ju-song 2009, 46(6): 1177-1181.  Abstract ( )   [Objective and Method]The Xinluzhong31,Xinza1 and Zhongmian 43 were studied under same planting condition to investigate high yield physiological mechanism of hybrid cotton. [Result]The results showed that compared with Zhongmian 43,the chlorop hyll content of the stem from top to bottom of Xinluzhong31 and Xinza1 was high and kept long time.From blooming to initial boll opening ,the index of leaf area,accumulation of dry matter were obviously higher than that of Zhongmian 43 by 10; and 70;.The boll number of hybrid cotton were increased with 6-7 bolls per plant,the weight of single boll was more than 5 g.[Conclusion]The great part of botts were distributed on the middle and lower fruit node of the cotton plant.Therefore,the yield of hybrid cotton was much highter than that of common cotton.

Select

Cloning of PLDα Gene cDNA and Construction of Antisense Plant Expression Vector LU Xiu-li;LUO Shu-ping;YUAN Hai-ying;WU Yu-xia;ZHOU Chang-fa 2009, 46(6): 1182-1187.  Abstract ( )   [Objective]The research aimed to obtain HKD2 domain in PLD gene and construct its antisense plant expression vector,so as to study the effect of PLDα gene on the storage property,[Method]total RNA was extracted from the mature fruit of strawberry,then cDNA was amplified by reverse transcriptase polymerase chain reaction(RT-PCR) and to clone T-A into pMD19-T simple vector. The positive clones were sent to sequence. [Result]After confirming its validity,the PLDα gene fragment was inverted into plant expression vector pBI121 to construct antisense expression vector pBI121-PLD.[Conclusion]Then the recombinant plasmid was transferred into Agrobacterium tumerfaciens LBA4404 by freeze-thaw method to further lay the base for extending the strawberry's storage.

Select

Quantitative Analysis on Natural Colored Cotton Pigment Based on UV Spectral Scanning TIAN Qin;ZHANG Xiao-jun;ZHANG Xin-yu;SUN Jie 2009, 46(6): 1188-1191.  Abstract ( )   [Objective]Quantitative Analysis of color plays major role in inheritance and breeding of naturally colored cotton. [Method]In present study,pigment of color cotton fibers was extracted and the absorbance was measured using scanning UV spectrum. [Result]It is observed the absorbance peak of the green color fiber pigment extraction solution occurred at 252 nm,and the absorbance peak moved heading to direction of shortwave gradually with decreasing the concentration of green color pigment,while the absorbance peak of brown color fiber pigment extraction solution moved more obvious heading to the direction of ultraviolet region shortwave,compared with green color pigment. The quantitative relationship between absorbance and the concentration of different color fibers pigment was calculated and the highest correlation coefficient was screened from all absorbance values (200-700 nm),it is concluded that 417 nm and 613 nm were considered as characteristic wavelength for green color fiber and brown color fiber respectively. The regression equation between pigment concentration and absorbance were Cgreen=0.053 5 A (R~2=0.996 5) for green color fiber and Cbrown=0.021 7 A (R~2=0.987 8) for brown color fiber respectively. From this study a conclusion can be drawn that scanning UV spectrum method is a very powerful tool to determine the pigment content of color fiber. [Conclusion]Therefore,this method has very important significance for colored cotton breed.

Select

Analysis of Genetic Diversity of HMW-GS in Wheat Varieties and Strains of Xinjiang CAO Jun-mei;ZHOU An-ding;LI Dong;HUANG Tian-rong;GAO Yong-hong;ZHANG Xin-zhong;LU Jing 2009, 46(6): 1192-1197.  Abstract ( )   [Objective]The high-molecular-weight gluten subunits(HMW-GS)of [Method]88 wheat cultivars were analyzed by means of SDS-PAGE in order to make good use of crop germplasms resource of Xinjiang,[Result]a total of 15 HMW-GS pattern were identified.At Glu-A1 loci,3 alleles were detected,which encoded subunit 1,2~* and Null respectively and the major subunit was Null with the 57.96 .At Glu-B1 loci,8 alleles were detected,which encoded subunits 7+8,7+9 ,6+8,14+15,17+18,7,8 and20 ,7+8 and 7+9 were the major subunit patterns(45.46;,39.77;).4 alleles encoded subunits 5+10,2+12 ,3+12 and 2+11respectively were detected at Glu-D1 loci and 2+12 was the major subunit pattern(59.09;).There were 25 subunits combination patterns in wheat cultivars from Xinjiang wheat and the major pattern was"Null,7+8,2+12"with the frequency of 17.05.The frequency of high-quality HMW-GS(1,14+15,5+10) of strains was risen compared with early phase varieties,and the appearance rate of high-quality from other varielies (2~*,7+8,17+18) fell off to some extent. Among 88 wheat germplasm,32 carried 5+10 high-quality subunits,21 of that had 1 subunits,6 of that had 2~* subunits,1 of that had 14+15 subunits,1 of that had 17+18 subunits,and 2 of that had high quality subunits combinations(2~*,17+18,5+10,1,7+8,5+10),[Conclusion]these crop germplasms were utilized in wheat quality breeding.

Select

Research on Effect of Different Storage Ways and Varieties of Sweet Sorghum Stems FENG Guo-jun;TU Zhen-dong;Zaituniguli·Kuerban;CAI Xue-qin;YE Xiu-juan;XIANG Li;YE Kai 2009, 46(6): 1198-1205.  Abstract ( )   [Objective and Method]After harvesting sweet sorghum Xingaoliang No.3 and No.4,we storaged sweet sorghum stalk using these means by erection、flatways and cut stem into short nodes piled respectively by one,two,three,four,five layer.[Conclusion]This paper studied characters change such as stem weight,brix,temperature,mouldy extent and relationships between the different storage ways and varieties of sweet sorghum.The result showed that the character change of the same variety is different by different storage way;the character change of different variety is different by the dame way.The weight of sweet sorghum stalk become dicreasing during 6 months storage,its sugar content becomes increasing.The weight of sweet sorghum is increased and decresaed with different storage way.In a word,No.3 and No.4 under storage with erection,removed leaves and removed ears or by flatway could perform better effect.[Result]The weight of No.3 was decreased as follows:41.6;,50.5;,65.6;,the brix of No.3 was increased as follows:42.7;,23.1;,29.5;.These storage ways were operated simply,no moldy.

Select

The Effects of Different Ratio of Cotton Growth and Development NH4+/NO3- under NaCl Stress Condition QIAO Xu;CHU Gui-xin;LIANG Yong-chao;ZHANG Ji-feng;WANG Fei;YANG Chun-lan;ZHANG Shu-ying 2009, 46(6): 1206-1211.  Abstract ( )   [Objective]Salinity is one of the major abiotic stresses affecting plant productivity.[Method]The enflunce of different ratio of ammomium and nitrate on cotton seedling growth and development as well as seedlings N nutrition character were investigated under three leveles of NaCl stress,namely 0,100,200 mM. Experiment was carried out in hydroponic culture condition in greenhouse.[Result]The results show that dry weight of cotton seedling,leaf,stem and root as well significantly increased under ammomium/nitrate ratio of NNH_4~+/NO_3~y=50/50 and 75/25 (P＜0.05). Compared with the N application ratio of NH_4~+/NO_3~=0/100 treatment,cotton seedling totoal biomass dry weight enhanced by 47.4; and 44.0; at the N ratio of NH_4~+/NO_3~=75/25 under 0mM and 100mM NaCl levels respectively. The amount of N uptake by cotton seedling is greatly higher in the treatment of ammomium and nitrate supply ratio of 50/50 and 75/25 than ammonium or nitrate supply sololy. Leaf expand rate and stem extend rate of cotton were significantly increased in ammomium and nitrate supply ratio of 50/50 and 75/25.NaCl stress has obvious inhibition effect on cotton seedling growth and sharply decrease cotton dry weight and the amount of N accumulation and leaf chlorophyl content as well,[Conclusion]while the inhibitation effece caused by salt stress could be obviously alleviated under ammomium/nitrate supply ratio of 50/50 and 75/25.

Select

Analysis on Cold Resistance of Branches of Ziziphus jujuba Mill. SONG Feng-hui;SHI Yan-jiang;WU Zheng-bao;HAO Qing;Hadier·Yishake;LUO Qing-hong 2009, 46(6): 1212-1215.  Abstract ( )   [Objective and Method]The major cultivation clones of one year dormant seedling of Ziziphus jujube in the oasis around Tarim Basin were used as materials to observe their one year dormant woods of relative electric conductivity and relative leakage of K~+ under different low temperature treatments,and various clones Logistic equation were established.[Result]The results show that: (1) The relative electric conductivity and relative leakage of K~+ of the clones increased with the decreased of temperature; (2) Under the same low temperature stress,the relative electric conductivity and relative leakage of K~+ were different in difference clones.[Conclusion]The comprehensive analysis was given that the difference of the cold resistance abilities of the clones were as follows:Huochengzao jujube > wild jujube> Junzao jujube> Huizao jujube.

Select

Effects of PEG Osmotic Conditioning on Imbibitional Chilling Injury of Seeds Germination of Allium Galanthum L. SHI Mei;TAN Dun-yan;LIN Chen-yi 2009, 46(6): 1216-1220.  Abstract ( )   [Objective]In order to prove whether Allium galanthum L. has imbibitional chilling injury and whether PEG has osmotic [Method]conditioning on the seeds germination when imbibed at low temperature. [Result]The study tests the relative electric conductivity,germination rate,germination index and vigor index of Allium galanthum seeds germinated for 1 d,2 d,3 d,5 d and 7 d at 5℃ imbibitional experiment and treated with different PEG concentrations of 0;,10;,15;,20;,25; and 30; respectively. After analysis of variance the results show that Allium galanthum L. has imbibitional chilling when imbibed at 5℃. [Conclusion]The germination is inhibited when the treatment time is longer than 2 days. The germination can be improved significantly when treated with PEG at the same condition,and the suitable PEG concentration which control the seed germination increased with the extending of time of the low temperature treatment.

Select

Study on Nutritional Characteristics of Liquid Cultured by Tricholoma Mongolicum Imai. from Bayanbulak ZHANG Juan;LIN Chen-yi;TIAN Yuan-yun 2009, 46(6): 1221-1224.  Abstract ( )   [Objective]For protecting and utilizing Tricholoma mongolicum Imai.,using liquid culture to grasp its nutritional characteristics,[Method]taking the Tricholoma mongolicum from Bayanbulak as the material for shake cultivation,the biomass,characteristics and culture time are studied to explain its nutritional characteristics and suitable culture condition.[Result]The result indicates that the mycelium can be cultured in the liquid medium with a certain time and the best medium formulation is corn grits 5;,glucose 2;,KH_2PO_4 0.1;,MgSO_4 0.05;,soybean 0.1; and pH 6.5～7.0. It has enough dissolved oxygen and a more stable biomass when there is 40; liquid medium in the bottle and cultured at the speed 125 r/min,the biomass is 0.684 8 g/100 mL and the mycelium age is 21 d.[Conclusion]It has a poor adaptation ability when growing both in the potato medium and the rice bran medium.

Select

Effect of GA_3 and 6-BA Micture Treatments on the Growth and Development of Red Globe Cluster SONG Xiao-yan;YU Song-lin 2009, 46(6): 1225-1228.  Abstract ( )   [Objective and Method]The difference of growth dynamic of cluster during different treatment of GA_3 and 6-BA was researched.[Result]It showed that the growth of cluster treated with hormone was raised. However,the growth quantity of hormone treatment was debased,and the depressed extent was increased along with the rise on concentration. There was no entire mode of "three-phases" of fruit spike in growth trend compared with control.The growth was quickened before May 28th,but it went to be gentle after that. The effect of hormone on spike length was greater than that of spike width.[Conclusion]The spike width was greatly increased,whose growth trend was similar to the control,especially the treatment of lower concentration hormone.

Select

Effect of Different Soil Surface Mulching on Processing Tomato Seeds Germination Ability in Xinjiang QI Shu-sen;SHI Wei-min;LIU Jun-jie;WEI Xiao-chun 2009, 46(6): 1229-1234.  Abstract ( )   [Objective]The effect of different soil surface mulching on processing tomato seeds in high temperature condition was studied in this paper.[Method]The results showed that the light ratio respectively decreased to 25.97 ; and 20.15 ; by using black films and transparent film +75; shading net,the average temperature of mulched soil was always lower than 30 ℃ in daytime during germination process; after sowing six days,the seed dry matters respectively consumed to 81.85 ; and 86.16 ;,and the seeds germination reached normal level,the germination rate was 91; and 87; respectively.

Select

Effect of Verticillium wilt Pathogen Stress on the Defensive Enzymes and Ultramicrostructure in the Cotton Root Inoculated with AMF CUI Wei-dong;LONG Xuan-qi;HOU Xin-qiang;YANG Rong;BU Juan;LUO Ming 2009, 46(6): 1235-1244.  Abstract ( )   [Objective amd Method]Exposed to the stress of pathogen fungus Verticillium dahliae,the changes of activities of defensive enzymes in root tissue,the contents of resistance related substances and ultra-microstructure of root cells of cotton seedlings which have been inoculated previously with two kinds of arbuscular mycorrhizal fungi (AMF,Glomus mosseae and Glomus etunicatum)have been investigated under the condition of pot cultivation in green house.[Result]The results indicated that for the cotton seedlings of susceptible variety (Gossypium hisuvm L. Cv Junmian No.1): (1) AMF inoculation were introduced to improve the contents and activities of defensive enzymes in root including phenylalanine ammonialyase (PAL),chitinase,peroxidase (POD),and especially in case of double inoculation,the contents and activities of the three enzymes have been improved significantly and a new band of POD isoenzyme has appeared. (2) AMF inoculation could increase the contents of total phenol and decrease the content of malondialdehyde (MDA) in root which indicated that incoulation of AMF could decrease membrane lipid peroxidtion of plant cell and control the injure of cell.(3) A series of structural changes occurred to the root cells which are favorable to improving tolerance of root system after AMF colonization,such as cell deformation and pyknosis,decrease in vacuole number and xylem expanded,and some more drastic change occurred in the case of double inoculation,the cell color became darker,palisade tissues and vessels deformed,mitochondria disappeared,the cell walls became thicker obviously and lignified,substance deposition occurred on cell walls. [Conclusion]The author therefore summarized that AMF could improve the tolerance of cotton to Verticillium wilt and protection effect on the plant.

Select

Fermentation Medium of Forage Bacillus licheniformis Strain TS-Ⅱand Fermentation Conditions Optimization HU Shuang;ZHAN Fa-qiang;BAO Hui-fang;WANG Wei 2009, 46(6): 1245-1251.  Abstract ( )   [Objective and Method]Through the screening and orthogonal design experiments of the carbon, nitrogen and trace elements, [Result]the most suitable components of medium for strain's fermentation are found to be as follows (g/L): sucrose 60, peptone 30, NaCl 30, K_2HPO_4 2, MgSO_4 1, FeSO_4 0.02, MnSO_4 0.01. The research on fermental condition indicate that the optimal initial pH of fermentation is 5.5, the optimal temperature is 35℃,the optimal volume of liquid medium is 10 mL in 250 mL conical bottle. [Conclusion]The strain TS-Ⅱ's living barteria has reached 6.58×10~(10) CFU/mL after the optimization of the components of medium and cultivating condition.

Select

Antagonism of the Three Biocontrol Bacteria Strains on Botrytis cinerea in Xinjiang CHEN Lin-feng;FAN Yong-mei;HAO Jing-zhe;YANG Cui-ping;JING Zhong-mei;ZHAO Guo-quan;PAN Wei-ping 2009, 46(6): 1252-1257.  Abstract ( )   [Objective]A study on the biocontrol efficacy of the Bacillus strains A57,A178 and N1729 against 13 Botrytis cinerea isolates from the different area in Xinjiang, was performed for evaluating the future application significance of the three strains for the biological control of plant diseases,and providing scientific basis for the future research on their development.[Method]The antagonism of three biocontrol bacteria were tested on PDA plate against 13 Botrytis cinerea isolates respectively. By the liquid fermenting and the tiny hole filters, the antagonism of free cell filtrates were detected on PDA plate. [Result]The results demonstrated,the antagonistic ability of A178 strain was the strongest among three biocontrol bacteria,the average inhibition rate of the strain was 45.67;. The average inhibition rate of N1729 strain' free cell filtrates was 44.61;. A57 strain had the better antagonistic ability to the pathogen, but its free cell filtrates had no effect on the pathogen.[Conclusion]These evidences showed that the two strains A178,N1729 were excellent biocontrol material against Botrytis cinerea with good prospects of development and application.

Select

Host Preference and Mechanism of Tetranychus turkestani (Vgorag＆Nikolski) to Different Cotton Varieties YUAN Hui-xia;ZHANG Jian-ping;LI Qing 2009, 46(6): 1258-1262.  Abstract ( )   [Objective and Method]The host preferences of T. turkestani to different cotton varieties in Xinjiang were studied.[Result]The results showed that the host preferences of T. turkestani to eighteen cotton varieties had significant difference. T. turkestani was not attracted evidently by Xinhai 21 but attracted strongly by 297-5, 81-3. On this basis, six varieties were selected for biochemical test, that indicated that there was no significant correlation between host preferences of T. turkestani.[Conclusion]The higher the content of leaf wax,cotton phenol and brassis ,the weeker the preference of T. turkestani is;the higher the content of tannin is,the stronger the preference of T.turkestani to the variety is;the higher the chlorophyll content the variety has ,the less injury it suffers.

Select

Effects of Plant Growth Regulators on Crimson Seedless Fruit Quality CUI Hui-qin;NIU Jian-xin 2009, 46(6): 1263-1265.  Abstract ( )   [Objective and Method]The experiment was conducted to study the effects of Crimson seedless fruit after dipping into different concentrations plant growth regulators and the plant growth regulators plus other substances in different stage. [Result]The result showed that Crimson Seedless fruit quality was improved better with the treatment of the plant growth regulators plus other substances than with the treatment of the sole plant growth regulators, and it was the best in fruit quality under the treatment of the grape dipping into 50 mg/L of Pro Gibb plus 600 times Duoshouye diluted solution in flowering season and 143 mg/L of Pro Gibb plus 45 mg/L Promalin and 1 g/L Spreader and Inflitration 7 days after flowering in this experiment. [Conclusion]The appearance quality and internal quality of Crimson Seedless fruit were best.

Select

Inhibitory Effects of Different Fungicides and Their Mistures on Tomato Grey Mould in Vitro SUN Xiao-jun;CUI Yuan-yu;YANG Hua;ZHANG Sheng;ZHANG Lu 2009, 46(6): 1266-1269.  Abstract ( )   [Objectvie and Method]The effects of some fungicides and their mixtures on tomato grey mould (Botrytis cinerea Pers) were tested with the hypha growth rate and spores germination methods in vitro in laboratory. [Result]Results showed that hypha growth, Armure, Thiram,Shihuile and Iprodione had significant inhibition activity,their EC_(50) s were between 0.347 6 μg/mL and 0.724 2 μg/mL. Vinclozolin and Diethofencarb with EC_(50)s＞1 μg/mL were less effective.But the spores germination, Armure, Thiramand and Iprodione had good inhibitory actions. Their EC_(50)s were between 1.308 5 μg/mL and 1.336 4 μg/mL. Vinclozolin and Shihuile had less effects(with EC_(50) of 1.525 4 μg/mL and 1.777 4 μg/mL).Diethofencarb,with EC_(50) of 1.525 4 μg/mL and 1.777 4 μg/mL,took second place.[Conclusion]Synergistic inhibition were obtained when Iprodione and Thiram were mixed.

Select

Control Effect of Different Insecticides with Spraying Crown and Watering Roots on Wolly Apple Aphid in Ili Mayila·Tulafu;YU Jiang-nan;CHEN Wei-min;Aisaiti·Aibibula;HE Xiao-ju;XIONG Mei-le 2009, 46(6): 1270-1273.  Abstract ( )   [Objective and Method]Seven insecticides were selected to control Eriosoma lanigerum (Hausmann) with watering root and spraying method.[Result]The results showed that by use of 40; Lorsban EC 2 000 times, 2.4; AvermectinEC 1 000 times and 3.0; Acetamiprid WP 1 000 times in field to control Eriosoma lanigerum,the control effect against wolly apple aphid reached respectively 100;, 96.16; and 80; for 15 days later.By use of 40; phoxim EC 1 000 times, 1.2; 91;, They had significant control effect. [Conclusion]The control effect of Watering the Root in sping is beter than in autumn.

Select

A Study on Screening of High Productive Proteinase Strain of Aspergillus Oryzae and Its Application in Soy Sauce Brewing FU Li;ZHANG Yun;TU Zhen-dong;YE Kai 2009, 46(6): 1274-1278.  Abstract ( )   [Objective and Method]The protoglast of Huniang 3042 Aspergillus Oryzae was compoundly treated by UV irradiation and lithium chloride for high proteinase producing mutant. The hereditary stability and proteinase property of mutant were studied.The brewing experiment of soy sauce was conducted by mutant. [Result]The results showed that the strain of UF366 Aspergillus Oryzae was obtained with high proteinase activity. The neutral proteinase activity reached 1 440 U/g and were 33.3; more than the original strain. UF366 Aspergillus Oryzae has good hereditary stability by inoculating 20 times.When pH 7.2 and 40℃ were treated,the proteinase activity of UF366 Aspergillus Oryzae were the highest.The proteinase activity lost completely when the temperature reached 90℃ in 30 minutes.[Conclusion]The result of brewing experiment was as follows, the amino acid nitrogen and total nitrogen reached 0.637 g/100 mL and 1.14 g/100 mL,were 36.7; and 39.0; more than Huniang 3042 Aspergillus Oryzae.

Select

Primary Study on Choosing Different Areas of Winter Wheat in the North of Xinjiang GAO Yong-hong;HUANG Tian-rong;ZHANG Xin-zhong;LI Dong;CAO Jun-mei;ZHOU An-ding;WU Qing-hong;WU Xin-yuan 2009, 46(6): 1279-1282.  Abstract ( )   [Objective and Method]The aim of this text was mainly to study the new steady wheat lines cultivated in Tacheng and Anningqu of Xinjiang at the same time to analyse their main agronomic quality.[Result]The result showed that grain per ear had the greatest contribution to the wheat yield in different places.We expect that some theoretical basises can be provided for the selection of winter wheat breeding. The results showed that there was significant correlation between plant height and bulk density in two areas, in which the bulk density reached the extremely correlation in two areas, but there was negative correlation between plant height and yield in Tacheng.The main agronomic quality of 05/7072 was performed generally at Anningqu but better at Tacheng. The average yield of these two places ranked first in all lines. [Conclusion]Based on this result, more research will be developed for choosing different areas in the further

Select

Effect of Limited Irrigation on Plant Properties and Yield of Winter Wheat Sailihan·Sai;CHEN Xing-wu;GAO Yong-hong;LEI Jun-jie 2009, 46(6): 1283-1287.  Abstract ( )   [Objective]There are great water-saving potentialities in Xinjiang agriculture,compared with the irrigation level of advanced irrigation area.[Method]It is of great importance of designing different irrgiation treatments to study the index of group change,biological weight per lant,the properties of ear,leaf area,yield of winter wheat.[Result]The result indicated that the group index of water stress had effect on biomass,leaf area and tillering of wheat.The high yield of wheat was limited by the effect of photosynthetical nutrient and physiological process of crops.In the test area,jointing stage and boot stage were the great important period for irrigation of winter wheat.There were a certain difference of irrigation during boot stage,before boot stage and after boot stage.[Conclusion]The contribution rate of the early irrigation after spring was much greater than that of the late irrigation.

Select

Study on Soil Microorganisms and Enzyme Activities of the Degraded Seriphidium transiliense Desert Grassland FAN Yan-min;ZHU Jin-zhong;WU Hong-qi;ZHU Xin-ping;SHI Chong;WANG Ji-yun 2009, 46(6): 1288-1293.  Abstract ( )   [Objective and Method]Taking the degraded Seriphidium transiliense desert grassland in northern Xinjiang as an example, the soil microorganisms and enzyme activities of the different degraded series (moderate degradation grassland, severe degradation grassland and extreme degradation grassland) are analyzed. [Result]The results showed that the number of bacteria was the largest, which was dominate, and followed by actinomycete and fungi in the degraded grassland. At 10-20 cm soil layer, the differences of the number of bacteria, actinomycete and the total number of microorganisms were notable among the degraded grassland, and the difference of the number of fungi was shown only between severe degraded grassland and extreme degradation grassland. Compared with the moderate degradation grassland and severe degradation grassland, the activities of soil alkaline phosphatase, dehydrogenase and invertase were notablely increased at 0-10 cm soil layer in extreme degraded grassland. Catalase Activity in severe degradation grassland was significantly less than that in the extreme degradation grassland. Urease activity had significant difference only at 10-20 cm soil layer among the degraded grassland. At 10-20 cm ,20-30 cm soil layer,the activity of catalase and dehydrogenase was increased with the increasing of grasslan degradation degree.But urease and invertase activity were degressive. [Conclusion]Therefore, when monitoring the evolution of soil quality of degraded grassland, the sensitive soil biological indicators are: bacteria, actinomycete, alkaline phosphatase, dehydrogenase, invertase.

Select

Study of Spatial Heterogeneity of Vegetation Index and Soil Nutrients of Seriphidium Transiliense Desert Grassland YU Bo;ZHU Jin-zhong;FAN Yan-min;LU Wei-hua;WANG Dong-jiang 2009, 46(6): 1294-1300.  Abstract ( )   [Objective and Method]With the aid of Geostatistics, the spatial distribution of soil properties in Artemisia desert grassland of purple soil was described and illustrated and the rational points in sampling of soil in the sloping land were further ascertained. [Result]The results indicated that(1): the spatial correlation of total phosphorus, available phosphorus, potassium, nitrogen, vegetation index (NDVI)was high, so their variabilities were mainly affected by structural factors. Moreover, the spatial correlation of available K and available N was low. (2) In the semi-variance analysis, every object could fit the models perfectly.Organic matter fitted the linear model, total K,total N,total phosphorus,available P,available N,available K and NDVI could be explained by the Gaussian model.(3) The ranges of soil nutrients were 23.58 m-110 m. The spatial variability of all soil nutrients were mainly produced by structural factors and random factors. Based on the semi-variance and Kriging interpolation method, the isolines of soil nutrients were mapped. The spatial distributions of soil organic matter, total-N and available phosphorus were similar to each other,while the available N and available K were clearly different. [Conclusion]The analysis of soil nutrients and vegetation indexes help to analyze the correlation between the spatial heterogeneity of vegetation index and the degree of soil elements (OM, N, P, K) spatial heterogeneity of relevance.

Select

Isolation of Salt-tolerant Sinorhizobium meliloti in Xinjiang and Screening for High-efficient Strains XIONG Zhi-Yui;ZHANG Xin-yu;WANG Xiong-bao;XU Xiong-sheng;GENG Wei-dong;SUN Jie 2009, 46(6): 1301-1306.  Abstract ( )   [Objective]In this study, Sinorhizobium populations were isolated from 14 different regions in Xinjiang,using Medicago sativa as trap host plants. [Method]A total of 81 rhizobial isolates were obtained and were confirmed that all of them fell into S. meliloti by PCR. [Result]Analysis of salt tolerance revealed that they can survive in YMA medium whose salt tolerance was between 3.5; to 5; NaCl, and there was no apparent correlation between salt tolerance in Sinorhizobium meliloti and the salt content of the soil samples.[Conclusion]The 16S rDNA sequence of 8 isolates,which had salt tolerance to 5; NaCl,were high,its similarity was high and reached 99.8;.The innolation test indicated that all the 8 isolates could increase the growth of aboveground part of alfalfa plant. Additionally, there is difference in the symbiotic nitrogen-fixing efficiency of these 8 isolates with alfalfa, and the nitrogen-fixing efficiency of TC-Y is higher than that of other isolates.

Select

Cloning and Sequence Analysis of AFP Gene Conservative Region in Ammopiptanthus Nanus ZHAN Bin;AN Sha-Zhou;YANG Li-Juan;LI Lian-Rui;MA Chun-Hui 2009, 46(6): 1307-1310.  Abstract ( )   [Objective]A pair of primers were designed according to the three antifreezing proteins (AFP) gene of Ammopiptanthus mongolicus (Genbank accession number is AY590122, AY843521, and AY843522, respectively). [Method]Total RNA of Ammopiptanthus nanus was extracted using Trizol, which then was used as a template to amplify conservative region of AFP gene by RT-PCR in Ammopiptanthus nanus.[Result]The result showed that the conservative region of AFP gene of Ammopiptanthus nanus had high homology and similarity (98.15;) to the AFP gene of Ammopiptanthus mongolicus.[Conclusion]The above result could also set the base for the complete AFP gene of Ammopiptanthus nanus

Select

Preliminary Discussion on Optimization of Growing,Livestock and Cultivation Structure of Farm WANG Xian-rui;AN Sha-zhou;LI Xue-xian;LIU Xiao-ka 2009, 46(6): 1311-1317.  Abstract ( )   [Objective]To find the better structure mode of agricultural production of the Farm in the Jingguanqu of Chabuchaer county of Ili River Valley ,the mode of Jingguanqu were investigated and discussed, [Method]some mode about three harvests in two years and livestock were designed, [Result]the modes were optimized by linear plan, the six modes were compared and analyzed, the mode of three harvests in two years and the fatiened cattle(or sheep) had better economic returns, ecological benefit and social effects than that of alone mode of cultivate wheat, the income of the former mode is 5 479.80 (8 959.15) yuan per 2 years in one hectare higher than that of the latter mode, [Conclusion]the mode three harvests in two years and the cattle(or sheep)can be applied by the people of Ili River Valley, which not only decreased the pressure of grassland,but also enhanced the economic returns, ecological benefit and social effects and were advantageous to the development of agriculture and animal husbandry on both banks of Ili River Valley.

Select

Preliminary Study on in Vitro Culture and Callus-induced of Ornamental Lily 2009, 46(6): 1318-1321.  Abstract ( )   [Objective and Method]With the ovary, style, filament of Jinkangka lily as the explant,the effects of different sterilizing time and mediums on the explant tissue culture process were studied. [Result]Light green callus tissue appear when the explants is cultrured for about 20 d.That is , different concentrations of NAA and BA have great impact on the callus induction. Hormone concentration of 0.5 mg/L NAA and 1.5 mg/L BA MS medium have the best impact on promoting the ovary swelling and callus induction formation.[Conclusion]The results showed that the effects of different sterilizing time on the contamination rate of the explant were different and they all showed downtrend with the prolonging of the sterilizing time.There are certain differences in the formation of callus ability among the Jinkangka lily ovary, style and filament. It is easier to form callus and have higher survival rates when we use the ovary as explants than use style and filament tissue. The explants were enlarged when it is cultured on the callus induced culture medium for about two weeks.

Select

Isolation,Purification and Identification of Bovine Brain Calmodulin and Preparation of Antigen ZHOU Xuan;BAO Xiao-wei;MA Sheng-jun;CAO Rui;XIA Sheng-bao;WANG Ying 2009, 46(6): 1322-1326.  Abstract ( )   [Objective]Calmodulin(CaM) was isolated and purified from bovine brain and identified with biochemistry, while CaM-couple antigen was prepared with EDC method.[Method]Calmodulin was isolated and purified from bovine brain by phenyl-Sepharose hydrophobic chromatography column.Its activity was detected by PDE method, the molecular weight was tested by SDS-PAGE, PAGE and electrophoresis behavior was observed, at the same time, its ultraviolet scanning spectrum were detected.Then CaM-couple antigens, prepared with cross linking agent-EDC, were used for animal immunization, and finally evaluated animal serum immunopotency by indirect Elisa.[Result]Cyclic nucleotide phosphodiesterase (PDE) can be activated by CaM, the results of electrophoresis showed to be homogeneous, and molecular weight was 17.3 KDa. The transport ratio of CaM-Ca~(2+) was faster than CaM-EGTA in SDS-PAGE, while the result was opposite in PAGE. The results of ultraviolet absorption-spectra showed there were 5 absorption peak at about 251 nm,260 nm,267 nm,272 nm and 283 nm. Then, animal serum can be purified by phenyl-Sepharose hydrophobic chromatography column and CaM-couple antigen is prepared by EDC method.

Select

Isolation and Identification of Lactobacillus from Xinjiang Small Reed Silage ZHANG Xiang-feng;Ainiwaer·Aishan;Mairemunisha·Wufuer;YAN Jing-yang;Yusufu·Rexiti 2009, 46(6): 1327-1331.  Abstract ( )   [Objective]Xinjiang small reed distributed widely and which is good forage resources of ruminants. [Method]This study will isolate and identify Lactobacillus from the self-regulating Xinjiang small reed silage. The trains were acidogenic tests that identified the advantages trains of Xinjiang small reed silage. 11 strains of Lactobacillus were isolated from the self-regulating reed silage of different origin. According to the criteria and description of Bergey's manual of systematic bacteriology(The eighth edition),which include two strains Lactobacillus pentosus(Hz2-1,Hz2-2), two strains Lactobacillus plantarum(Hz3-1,Hz3-2), two strains lactobacillus dung(Zar2-8,Zar2-9), two strains Lactobacillus brevis(Zar8-3,Zar8-4) , three strains Lactobacillus delbrueckii subsp.bulgaricus (Gsr1-1,Hz1-1,Zar9-4) were identified.Based on a strain for the fermentation acid test, it was found that a strong acid production capacity were observed from HZ2-1, HZ3-1,the pH up the minimum could reach 3.50,which was the main strains from fermentation process of Xinjiang small reed.

Select

Effects of Heavy Metals on Beef Production in Pasturing and Arable Farming Areas of Yining County,Xinjiang JIANG Yuan-yuan;ZHENG Chun-xia;SHAO Wei;YU Qing-yun;ZHOU Lei;YU Xiong 2009, 46(6): 1332-1335.  Abstract ( )   [Objective and Method]The main purpose of the study was to detect the heavy metals of seventy one-year-old Xinjiang brown cattle slaughtered after 5 months of grazing in the Tieliekesayi Mounts with the altitude of 900 m to 1 800 m,after 3 months of fattening in Yining county Xinjiang.[Result]In the experiment, plumbum(Pb), cadmium(Cd),chromium(Cr), mercury(Hg) were not found in the samples of slaughtered beef, liver after pasturing and farm fattening. These heavy metals also were not found in soil,water samples,straw,mixture concentrates of arable farming area, the same as soil and graze of rangeland.There were not the arsenic(As)contents in above samples, except for the beef after grazing and water samples of arable farming area.The arsenic contents of Poa sikkimensis (Stapf) Bor,ELymus dahuricus Turcz and ELymus sibiricus L. were 53.41 times higher than that of Bromus inermis Leyss and Geranium wilfordii Maxim. The scope of altitude of them were 900 m to 1 450 m,and 1 500 m to 1 800 m.It indicated that there was a significant different of arsenic contents in graze (P＜0.01),and there were no significant differences in other samples(P＞0.05).[Conclusion]The arsenic contents of beef liver after grazing and farm fattening were 8.91 times higher than that after pasturing.

Select

Comparative Analysis of Somatic Cell Counts in the Milk of Holstein and Xinjiang Brown LI Zong-fang;DONG Xi-lin;YE Dong-dong;Rexiti·Abudureyimu;TIAN Zhi-jun;HUANG Xi-xia 2009, 46(6): 1336-1340.  Abstract ( )   [Objective and Method]According to the DHI test records of Somatic cell counts of Tianshan Pasturage Changji Bio-engineering Co. Ltd cattle farm of Holstein and Xinjiang brown including 16 months,the species, the calving season, the parity and different months in 2006-2009 years were analyzed.[Result]The results showed that the species,the parity and different months affected SCC significantly (P<0.01), effect of the calving season was not significant (P>0.05).Results indicated that Holstein SCC increased when the parity of lactation increased. [Conclusion]For same TMR feeding style, comparative analysis of somatic cell counts in the milk of Holstein and Xinjiang brown in the each effect complication, Holstein somatic cell counts are always higher than that of the Xinjiang browns.

Select

Study on the Composition of Fatty Acid in Four Part Fat of Horse LI Hua;RONG Qun;ZHANG Xiao-ping;WU Guo-lian 2009, 46(6): 1341-1344.  Abstract ( )   [Objective and Method]The composition of fatty acid were analyzed by gas chromatogrphy (GC) in four parts fat of horse. [Result]The results showed that large amounts of saturated, monounsaturated and polyunsaturated fatty acids (PUFAs) were contained in four parts horse oil , among which there are majority of the contents of palmitic acid , oleic acid , linoleic acid and linolenic acid. The content of unsaturated fatty acid and the contait polyunsaturated fatty acid (PUFA) are 66.75; and 24.49; in horse oil of cervical part . The content of unsaturated fatty acid and the content of polyunsaturated fatty acid (PUFA) are 62.49; and 22.63; in horsebake oil . The content of unsaturated fatty acid and the content of polyunsaturated fatty acid (PUFA) are 60.34; and 19.87; in horse oil of abdomen . The content of unsaturated fatty acid and the content of polyunsaturated fatty acid (PUFA) are 59.91; and 19.61; in horse oil of internal organs . [Conclusion]The category and content of fatty acid all are differential in the four parts horse oil.

Select

Effects of Different Induced Culture Conditions on Expression of the Second Extracellular Loop of Sheep β2-adrenoceptor in E.coli CHEN Xiao-ping;ZHANG Hui-ling;YANG Bin;HAN Bing;CHEN Yong 2009, 46(6): 1345-1350.  Abstract ( )   [Objective and Method]The aim of this paper was designed to study the effect of different induced time,induced dose IPTG final concentration,culture temperature,rotation speed of shaker on the expression level of sheep β_2-adrenoceptor gene,the second extracellular loop recombinant plasmid pET32C-AR/Se harboring in order to select and screen the best culture conditions.[Result]The results showed that along with prolonging of IPTG induction time, the relative expression level of the recombinant protein increased gradually and reached the peak 2 h later, counting for 30.1; of the total bacterial protein. The expression level of the recombinant protein was between 27;～30; of total bacterial protein when the final concentration of IPTG ranged from 0.01 to 2 mmol/L. The crest value of expression level was 30.5; of total bacterial protein when the final concentration of IPTG was 0.01 mmol/L. In four culture temperatures, the expression level of the protein reached the peak, 35.5; of the total bacterial protein at 25℃. When the rotation speed of shaker ranged from 100 to 200 r/min, the expression level of the protein fluctuated between 33;～40;. The highest expression level of the foreign protein reached 200 r/min, counting for 40; of the total protein. [Conclusion]From the results, the conclusions could be drawn that the optimum culture conditions for expression of the second extracellular loop of sheep β_2-adrenoceptor in E.coli BL21(DE3) when the recombinant bacteria grow to OD_(600) 0.5 in LB fluid medium, IPTG added to a final concentration of 0.01 mmol/L, and induced at 25℃ and 200 r/min for 120 min.

Select

Effects of Adding Sodium Fumaric Acid on Digestion and Metabolism of Sheep ZHANG Cai-fang;YANG Ju-qing;LI Shui-xian;DOU Lai-yi;LI Feng-ming;YANG Kai-lun 2009, 46(6): 1351-1356.  Abstract ( )   [Objective amd Method]This research was conducted to study the effects of adding sodium fumaric acid (SFA) on digestion and metabolism of sheep. Eighteen male China merino(Xinjiang type) sheep were selected and randomly divided into three groups, 6 sheep in each group. 10 g and 20 g of sodium fumaric acid were added to the diet of groupⅡand group Ⅲ, respectively. [Result]The results showed that the DM intake and the amount of the digestible OM, CP, cellulose, semi-cellulose in control group was 1414.05±59.71, 917.89±44.43, 68.56±2.67, 284.98±21.99, 162.59±28.67, 1.70±0.73, 0.45±0.16(g/d), and when 10, 20 g SFA/d was fed, they were increased by 7.71;, 13.98;, 10.54;, 21.4;, 5.7;, 15.45;, 20.73;, 33.37;, 21.7;, 27.79;, 14.12;, 23.53; and 4.44;, 13.33;. The apparent digestibility of OM, CP, cellulose, semi-cellulose, Ca, P in control group was 69.46±1.21, 64.78±2.74, 69.62±1.97, 61.75±8.64, 17.77±7.38, 21.24±7.31(;), when 10, 20 g SFA/d was added, they were increased by 2.79;, 6.74;, 1.42;, 6.47;, 8.17;, 9.78;, 12.23;, 11.71;, 7.99;, 11.37; and 1.65;, 8.8;. The average body weight gain and the retention of N, Ca and P was 123.19±65.46, 7.08±0.35, 1.19±0.72, 0.43±0.16(g/d), when 10, 20 g SFA/d was supplemented, they were increased by 26.46;, 29.40;, 5.65;, 11.86;, 23.53;, 41.18; and 6.98;, 16.28;. [Conclusion]The present study showed that SFA could increase the intake, increase the amount of the digestible DM, OM, cellulose, semi-cellulose, increase the apparent digestibility of DM, OM and cellulose when 20 g/d was added, however, there was no significant effects of two different amounts of sodium fumaric acid on the Ca and P metabolism.

Select

Effect of Adding Sodium Dodecylbenzene Sulfonate in Low-protein Diet on the Digestion and Metabolism of Sheep LI Shui-xian;YANG Ju-qing;ZHANG Cai-fang;DOU Lai-yi;YANG Kai-lun 2009, 46(6): 1357-1362.  Abstract ( )   [Objective and Method]Eighteen male China merino(Xinjiang type) with similar weight and age about 12 months were divided into three groups,6 sheep for each group, the group Ⅱand group Ⅲ were added by 2 g and 4 g sodium dodecylbenzene sulfonate(SDBS)respectively in their low-protein diet, the group Ⅰ wasn't added by SDBS as control group, the purpose is to study the effect of SDBS on the digestion and metabolism of sheep. [Result]The results showed that the digestion in diet of the DM, OM, CP, cellulose and calcium in control group was 852.02±26.90, 791.25±23.89, 52.52±2.15, 264.50±13.72, 1.56±0.38(g/d),and when 2 g,4 g SDBS/d was fed, they were increased by 5.15;, 21.64;; 4.57;, 21.64;; 1.01;, 15.44;; 2.48;, 24.69; and 5.77;,19.87;. The apparent digestibility of DM and OM in control group was 66.51±0.02, 65.48±1.97, when 2 g,4 g SDBS/d was given, they were increased by 1.31;, 5.83; and 1.31;,6.34;. The group Ⅱ have no significant effect on the protein digestibility, but the group Ⅲ increased by 6.63; compared with the control group. The average body weight gain and the retention of N, Ca was 133.04±35.93, 5.57±0.72,(1.19±0.44)g/d, when 2 g, 4 g SDBS/d was given, they were increased by 4.57;, 7.84;;9.52;, 23.34;; 14.29;, 30.25;. [Conclusion]The present study showed that SDBS could increase the intake, increase the amount of the digestible DM, OM, CP and cellulose when added different SDBS in their low-protein diet, increase the apparent digestibility of DM, OM and cell ulose when 4 g/d was given, but there was no significant effect on the metabolism of Ca, P either 2 g/d or 4 g/d was given.

Select

Effect of Early Weaning on Biochemistry Indicators in Serum of Chinese Merino(Xinjiang type) Lamb YU Shi-gang;FANG Yi;LIU Wu-jun;SHENG Jie;CHEN Xiao-chu;MA Wei-ying;LI Zhi-jun 2009, 46(6): 1363-1367.  Abstract ( )   [Objective]The experiment was designed to analyze influence of early weaning on biochemistry indicators in serum of Chinese Merino lamb.[Method]There are three groups in the experiment! former groups(Gl &G2) are experiment group with early weaning at 40 days and 60 days respectively, fed with milk replacer.While control group(G3) was fed with milk from their ewes.The indicators in serum measured include:TPi ALB,GLOB, A/G,SUN,CHOL,GLU,TG,AST, ALT,ALP.LDH, LDL,HDL,Na, K,Cl,Ca,P,Mg.[Result]The results showed that as for SUN,Gl&G2 are 4.87 mmol/L and 3.9 mmol/L higher than that of G3,significantly(P < 0.05); as for HDL , the two groups are 0.14 mmol/L and 0.1 mmol/L lower than that of G3, significantly (P < 0.05); for AST, the two groups are 17.25 U/L and 11.8 U/L lower than that of G3,significantly (P < 0.05);as for CHOL and GLU,GI is 0.33 mmol/L, and 0.51 mmol/L lower than that of G3,significantly (P<0.05);as for ALT, Na and C1,G1 is 4.22 U/L, 4.63 mmol/L and 3.14 mmol/L lower than that of G3,significantly (P < 0.05) ;as for Mg GI is 0.05 mmol/L higher than that of G3,significantly (P<0.05); as for LDH GLT is 90.14 U/L higher than that of G3,significantly(P<0.05).[Conclusion] As a result, change of SUN and HDL in serum may reflect: early weaning has effect on balance among AA and protein metabolism to some extent.Meantime, LDH, AST,and GOP are lower in serum due to early weaning ,it can enhance their ability of anti - stress.In addition, activity of ALP reflect growth speed and production performances, no significant difference of ALP between experiment groups and control group, so early weaning has not impact on growth and development of Chinese Merino lamb in this experiment.

Select

Study on Degenerating Succession and Species Diversity of Spring-Autumn Grassland in Zhaosu Horse Farm of Xinjiang LI Gang-yong;Turesunayi·Reyimu;ZHENG Wei;LI Hai;LI Jun-bao 2009, 46(6): 1368-1372.  Abstract ( )   [Objective]Based on the investigation of Spring-Autumn deteriorate grassland communities, [Method]species community characteristics and vegetation quantity were analyzed, the findings from the analysis are follows: there are regularity between the community Diversity index.The community deversity were as follows:LD>MD>HD>ED and the homogeneous degree were as follows:MD>LD>HD>ED; meanwhile, heavy and moderate-degraded were unstable period of degradation.

Select

Study on the Effects of Fertilization on Yield and Quality of Two Varieties of Alfalfa Tuoerkun·Maimaiti;YU Lei;GUO Jiang-song;LIN Xiang-qun 2009, 46(6): 1373-1377.  Abstract ( )   [Objective and Method]The objective of this study is to evaluate the effects of different gradient of N,P,K fertilizer application on growth properties,forage yield and quality of Pondus and Sanditi according to field experiment. [Result]The results shows that there is the highest yield of Pondus and Sanditi with Tr3 treatment (applying fertilizer P with 360 kg/hm~2 and fertilizer with 450 kg/hm~2),the hay yield is 18 506.78 kg/hm~2 and 17 191.97 kg/hm~2.And the yield of different cuts has significent difference(P <0.05);The main stem length of different cuts of Pondus and Sanditi are higher than that of the control (besides pondus with Tra1 treatment of three cuts).The crude protein content of the three cuts has significant difference (P <0.05),is increased by 14.00;, 23.28; and 16.36; compared with the control.Meanwhile,Sanditi is 12.68;,15.69; and 21.40; higher than that of the control. [Conclusion]The results suggest that fertilizer P with 360 kg/hm~2 and fertilizer k with 450 kg/hm~2 application can improve the growth capacity, forage yield and quality.

Select

New Change of Oasis Forestry Production in Manass River Valley——Open up Soil and Water Resources,Develop Forestry Production LI Lu-hua;PAN Li-zhong;WEI Yi-hui;XIONG Jian-xi;WANG Zhen-hua;WANG Jiang-li;HOU Zhen-an;ZHOU Li;LAI Xian-qi 2009, 46(6): 1378-1381.  Abstract ( )   With the socio-economic development, extensive use of modern production technique and the implement of new land contract and forestry policies, the cropland shelter belt system set up during 1960s - 1970s in Manass River Valley, even Xinjiang, needs to be changed in ideas and production techniques and to build new system of shelter forest and adapt to the new rural area construction. Exploiting new water and soil resources, improving water and soil use efficiency and digging up the potential of water and soil are important to develop modern forest production. The common feature of building new shelter belt system in different areas with extra emphasis on different facets of forestry is to combine ecologic benefit, economic benefi and social benefit into one. It fully gives expression to the common requirement of modern oasis forestry and modern agriculture. And it is also propitious to promote the modernlization of agriculture, new rural area construction and restoration and reconstruction of desertification ecosystem.

Select

Predictive Model for the Desertification on Oasis-desert Ecotone——A Case Study of Minfeng Oasis in Xinjiang Mamatiyimin·Wumaer;Abudurexiti·Abuduwaili 2009, 46(6): 1382-1386.  Abstract ( )   In recent years, much attention has been payed to desertification in Xinjiang, China ,there are many researches about desertification in different research areas and have achieved significant results, but there are few studies about desertification in differential equation area, especially in China. In this paper the interaction between sandy land and spares vegetation in oasis-desert eco-tone was analyzed and based on the analysis, a mathematical model for predictive desertification was presented and verified using Minfeng oasis as an example .The Runge-Kutta scheme was applied to the model. Dynamic changes of sandy land were conducted using remote sensing technology, and the trend of desertification was predicted with the mathematical model. The result was fairly rational.The model is simple and very useful in predicting and managing desertification.