Abstract: [Objective] The aim of this paper is to study the impacts of different field collocation patterns on the colonial canopy architecture character and yield character of mechanical harvesting cotton.[Method] The colonial canopy architecture character and yield character under different field collocation patterns were analysed.[Result] The results show that different configurations have significant impact on leaf-area-index (LAI).For LAI of cotton,the high to low sequence is a film match two drip irrigation tapes,a film match three drip irrigation tapes,a film match four drip irrigation tapes and a film match five drip irrigation tapes at full-boll stage.The sequence of the leaf inclination angle is a film match three drip irrigation tapes ＞ a film match six drip irrigation tapes ＞ a film match five drip irrigation tapes ＞ a film match four drip irrigation tapes.There is significant difference between a film match four drip irrigation tapes and a film match six drip irrigation tapes at full flowering stage.The highest and the lowest degrees of DIFN are a film match five drip irrigation tapes and a film match six drip irrigation tapes respectively at full-boll stage.A film match six drip irrigation tapes could make full use of the population dominance and increase the cotton yield.[Conclusion] Plant configuration mode of A film match six drip irrigation tapes could raise light energy utilization ratio,improve canopy structure and photosynthesis and also greatly improve the yield.

摘要： [目的]研究不同机采棉配置模式对棉花冠层结构及产量性状的差异影响.[方法]采用单因素随机区组试验,设置四种机采棉配置处理,分析不同处理的冠层结构及产量性状.[结果]同配置对棉花叶面积指数有较大影响,盛铃期一膜六行叶面积指数最高,其次为为一膜三行与一膜四行,一膜五行最低;叶倾角大小依次为一膜三行＞一膜六行＞一膜五行＞一膜四行,一膜四行与其他三个处理存在显著差异;透光系数盛花期一膜四行、一膜六行表现较大差异,一膜六行透光系数最大.盛铃期,一膜三行、一膜六行与一膜四行、一膜五行存在显著差异,一膜五行透光系数最大,一膜六行最小;一膜六行具有较高的群体优势,籽棉产量及皮棉产量在各处理中最高.[结论]一膜六行能够保持较高的光能利用率,有利于塑造良好的冠层结构,具有较优的冠层结构,有利于实现棉花高产.