“亩产千斤子棉”群体结构建成的分析  

The Group Structure Analysis of Over one Thousand Jin Cottonseed Per Mu

作　　者：田绍仁[1,2] 杨磊[1,2] 夏绍南[1,2] 柯兴盛[1,2] 彭苗苗[1,2] 

机构地区：[1]国家棉花产业技术体系鄱阳湖综合试验站 [2]江西省棉花研究所,江西九江332105

出　　处：《江西棉花》2011年第A01期3-8,共6页Jiangxi Cottons

基　　金：国家棉花产业技术体系"亩产千斤子棉超高产创建"项目;国家公益性行业科研专项经费项目(3-5-14)

摘　　要：2009年,国家棉花产业技术体系鄱阳湖综合试验站、江西省棉花研究所共同在湖口县实施的＂亩产千斤子棉＂创建项目,取得了单产子棉7 605.9 kg/hm2（＂1014.12斤/亩＂）的好成绩。通过分析＂亩产千斤子棉＂的群体结构和成铃规律,提出＂千斤棉＂群体结构为株型较紧凑,种植密度27 000株/hm2左右,株高120~125 cm,果枝数22~23层,单株总果节数为180个左右,成铃率40%以上,总铃数达到140万个/hm2;上、中、下部成铃分布均匀,同时确保第1~5果节有较高的成铃率,早发早熟不早衰,是获得棉花超高产的关键。In 2009,the comprehensive experimental station of Poyang Lake and Jiangxi Cotton Research Institute carried out a demonstration project of ＂one thousand jin cottonseed per mu yield＂ in Hukou county,and have achieved a good results of 7 605.9 kg/hm2.In this article,we analysis the group structure and the boll-setting patterns,and come to conclusions that the group structure of super high yield is compact plant-types,planting density is about 27 000 tree/hm2,plant height is 120～125cm,the number of fruit branches layer is 22～23,the number of total fruit notes in one plant is about 180,the rates of boll-setting is more than 40%,the total number of bolls is 1 400 000/hm2;the bolls in the up,middle and bottom of plants is uniformly distributed,and assurance high bollsetting rate in 1～5 fruit notes is the key point of gain super high yield of cotton.

关 键 词：鄱阳湖棉区 “千斤棉” 成铃分布 群体结构 超高产创建 

分 类 号：S562.048[农业科学—作物学]