Abstract: [Objective] The research aims to study the correlation between quality characters and agronomic characters of different silage maize varieties, and to provide basis for breeding high quality silage maize varieties.[Method]In the field experiment, a randomized block design was used to investigate the related agronomic traits, and the whole plant corn was collected at the end of the milk and the beginning of the early dough stage, and the related quality traits were determined.The correlation analysis was performed by DPS software.[Result]The content of crude fat was extremely significantly correlated with number of tillers(r=0.744,1**).The content of crude starch was extremely significantly correlated with height of tillers, height of ear of plant and number of ears(r=0.860,5**, 0.809,7**, 0.721,3**) respectively.The content of crude fiber was extremely significantly correlated with weight of stalk and weight of leaves(r=0.674,0**、0.600,9**).The content of both NDF and ADF were extremely significantly correlated with weight of stalk(r=0.835,8**, 0.805,0**).[Conclusion]The quality of the tillering silage maize was significantly higher than that of single stem silage corn, crude fat, crude starch were significantly higher than those of single stalk silage maize.The neutral detergent fiber and acid detergent fiber content was significantly lower than those of single stalk silage maize varieties.When indirectly selecting the quality traits, attention should be paid to the multi spike material, and other agronomic characteristics should be also considered to coordinate the relationship between yield and quality.

摘要： [目的]研究不同青贮玉米品种品质性状与农艺性状相关关系,为选育优质青贮玉米品种提供依据.[方法]田间试验采用随机区组设计,调查相关农艺性状,在乳熟末期至腊熟初期采收全株玉米,测定相关品质性状,用DPS软件进行相关分析.[结果]粗脂肪含量与分蘖数(r =0.744 1**)呈极显著正相关,粗淀粉含量与分蘖高、分蘖穗位高、穗数(r=0.860 5**、0.809 7**、0.721 3**)呈显著正相关,多蘖多穗性状有利于淀粉含量的提高.粗纤维含量与茎秆重、叶片重(r=0.674 0**、0.600 9**)呈显著正相关,中性洗涤纤维和酸性洗涤纤维均与茎秆重(r=0.835 8**、0.805 0**)呈极显著正相关.[结论]分蘖型青贮玉米品质显著优于单秆型青贮玉米,其粗脂肪、粗淀粉含量显著高于单秆型青贮玉米,中性洗涤纤维和酸性洗涤纤维含量显著低于单秆型青贮玉米品种.对品质性状进行间接选择时,应重视分蘖多穗材料的选择,综合其他性状,协调产量和品质的关系.