新疆农业科学 ›› 2024, Vol. 61 ›› Issue (5): 1112-1121.DOI: 10.6048/j.issn.1001-4330.2024.05.009

• 作物遗传育种·种质资源·分子遗传学 • 上一篇    下一篇

不同行距配置方式下棉花适宜种植密度的筛选

刘超群1(), 董合林2,3, 万素梅1, 郑苍松2, 骆磊2, 马云珍2, 董祯林1, 陈国栋1,3(), 李鹏程2,3()   

  1. 1.塔里木大学农学院,新疆阿拉尔 843300
    2.中国农业科学院棉花研究所/棉花生物育种与综合利用全国重点实验室, 河南安阳 455000
    3.中国农业科学院西部农业研究中心,新疆昌吉 831100
  • 收稿日期:2023-09-28 出版日期:2024-05-20 发布日期:2024-07-09
  • 通信作者: 李鹏程(1972-),男,湖北荆州人,副研究员,博士,硕士生导师,研究方向为棉花养分高效管理,(E-mail)lipengchengcri@163.com;
    陈国栋(1986-),男,甘肃武威人,教授,博士,硕士生/博士生导师,研究方向为作物高产与高效农作制度,(E-mail)cgdzky@163.com
  • 作者简介:刘超群(1997-),男,河南周口人,硕士研究生,研究方向为干旱区农作制度,(E-mail)1172638580@qq.com
  • 基金资助:
    “丝路同源智慧闽昌”棉花减肥增效李鹏程团队项目,棉花产业技术体系岗位科学家(CARS-15-11);中国农业科学院科技创新工程(CAAS-ASTIP-CCRI),棉花生物学国家重点实验室开放课题(CB2020A08);塔里木大学校长基金团队项目,棉花遗传改良与栽培创新研究团队(TDZKCX202309)

Study on suitable planting density of cotton with different row spacing configurations in southern Xinjiang

LIU Chaoqun1(), DONG Helin2,3, WAN Sumei1, ZHENG Cangsong2, LUO Lei2, MA Yunzhen2, DONG Zhenlin1, CHEN Guodong1,3(), LI Pengcheng2,3()   

  1. 1. College of Agronomy, Tarim University, Aral Xinjiang 843300, China
    2. Cotton Research Institute, Chinese Academy of Agricultural Sciences/National Key Laboratory of Cotton Biological Breeding and Comprehensive Utilization, Anyang Henan 455000,China
    3. Western Agricultural Research Center, Chinese Academy of Agricultural Sciences, Changji Xinjiang 831100, China
  • Received:2023-09-28 Published:2024-05-20 Online:2024-07-09
  • Correspondence author: LI Pengcheng (1972-), associate researcher, Ph.D.,research direction:cotton nutrient efficient management, (E-mail)lipengchengcri@163.com;
    CHEN Guodong (1986-), professor, Ph.D.,research direction: crop high yield theory and technology,(E-mail)cgdzky@163.com

摘要:

【目的】研究不同行距配置棉花适宜的种植密度,为新疆南疆机采棉筛选合理种植方式和适宜密度提供理论依据。【方法】通过大田试验,采用裂区试验设计,主区设置4个行距配置方式,即H3:1膜3行(76 cm等行距)、H4:1膜4行(66+10+66)cm、H5:1膜5行(10+66+66+10 ) cm、H6:1膜6行(10+66+10+66+10) cm;副区设置3个种植密度,分别为A1:15×104株/hm2、A2:18.75×104株/hm2、A3:22.5×104株/hm2,测定棉花农艺性状、叶面积、干物质积累量及籽棉产量,筛选不同行距配置下的棉花最适种植密度。【结果】不同行距棉花株高在打顶后表现为随密度增加而增高,A3处理的株高均显著高于A1处理;打顶后棉花茎粗随密度增加而变小,A1处理的茎粗均显著高于A3;棉花最大叶面积指数LAI在H3和H4条件下时表现为随密度的增加而增大,而在H5和H6条件下则表现为A2密度下最大;不同行距棉花最大单位面积干物质积累量均为A2处理的最大;密度显著影响籽棉产量和单位面积成铃数,行距显著影响单铃重。H5A2获得最高籽棉产量为7 026.9 kg/hm2,较其他处理高0.8%~14.5%。【结论】1膜3行(H3)、1膜4行(H4)、1膜6行(H6)行距配置下较优化的棉花种植密度为22.5×104株/hm2,1膜5行(H5)适宜棉花种植密度为18.75×104株/hm2

关键词: 棉花; 行距; 密度; 产量

Abstract:

【Objective】To explore the suitable planting density of cotton with different row spacing configurations in the hope of providing a theoretical basis for the rational planting method and suitable density of machine cotton picking in southern Xinjiang.【Methods】Through field experimental research, the split-plot experimental design was adopted, and four row spacing configurations were set in the main area, namely 3 rows of H3:1 membrane (76 cm equal row spacing), 4 rows of H4:1 membrane (66+10+66) cm, 5 rows of H5:1 membrane (10+66+66+10) cm, 6 rows of H6:1 membrane (10+66+10+66+10) cm, and 3 planting densities were set in the secondary area, respectively, A1:150,000 plants /hm2.A2: 187,500 plants/hm2; A3: 225,000 plants/hm2, the agronomic traits, leaf area, dry matter quality and seed cotton yield of cotton were determined in order to obtain the optimal planting density of cotton under different row spacing configurations.【Results】The experimental results showed that the plant heights of cotton with different row spacing increased with the increase of density after topping, and the plant heights of A3 treatment were significantly higher than those of A1 treatment.After topping, the thickness of cotton stems became smaller with the increase of density, and the thickness of the stems treated with A1 was significantly higher than that of A3.The maximum LAI of cotton increased with the increase of density under H3 and H4 conditions, while it was the maximum at A2 density under H5 and H6 conditions.The maximum dry matter accumulation per unit area of cotton with different row spacing was the largest in A2 treatment.The density significantly affected the yield of seed cotton and the number of bolls per unit area, and the row spacing significantly affected the weight of the single boll.The highest seed cotton yield obtained by H5A2 was 7,026.9 kg/hm2, which was 0.8%-14.5% higher than that of other treatments.【Conclusion】Under the conditions of this study, the optimal planting density of 1 membrane with 3 rows(H3), 1 membrane with 4 rows(H4) and 1 membrane with 6 row(H6) spacing was 225,000 plants/hm2, and the suitable planting density of 1 membrane with 5 rows(H5) was 187,500 plants/hm2.

Key words: cotton; row spacing; density; yield

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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