不同早熟陆地棉主要农艺性状的差异  

Research on the Agronomic Traits Difference of Early Maturing Upland Cotton

作　　者：肖光顺[1] 李保成[1] 李生秀[1] 周小凤[1] 马晓梅[1] 董承光[1] 

机构地区：[1]新疆农垦科学院棉花所,农业部西北内陆棉区棉花生物学和遗传育种重点实验室(新疆),新疆石河子832000

出　　处：《西北农业学报》2012年第11期96-100,共5页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：兵团科技攻关计划(2011BA001)

摘　　要：以早熟陆地棉新陆早33号、新陆早36号、新陆早42号为材料,研究早熟陆地棉熟性、株型、结铃性及产量4类16个主要农艺性状差异。结果表明:新陆早33号、新陆早36号、新陆早42号的生育期分别为126.3、123.0、123.3d;株型分属筒型、塔型、塔型,果枝类型Ⅰ式、Ⅱ式、Ⅰ-Ⅱ式,叶枝长与株高比为0.073、0.139、0.077;第2果节以上铃数、叶枝铃数分别占株铃数9.7%、11.0%、9.8%和2.2%、4.4%、1.0%,显示了早熟陆地棉早熟和株型紧凑的共同特性。株高、叶枝数和叶枝长差异较大,变异系数分别为25.0、22.5、31.6,叶枝铃数差异巨大,变异系数为69.3,而其他性状差异不大。结果说明,目前早熟棉区品种农艺性状的遗传多样性;早熟性对早熟陆地棉其他农艺性状差异产生了良好的协调效应,达到高产的结果。With the early maturing upland cotton Xinluzao 33, Xinluzao 36, Xinluzao 42 as the materi- als, 16 agronomic traits of maturity, plant type, bolling and yields difference were studied among the three varieties. The results showed that the growth period of Xinluzao 33, Xinluzao 36 and Xinluzao 42 was 126.3,123,123.3 d respectively. Plant type was cylinder type, tower type and tower type, and fruit branch type was Ⅰ , Ⅱ , Ⅰ - Ⅱtype respectively. Ratios for vegetative branches length and plant height in three varieties were 0. 073, 0. 139, 0. 077, and the bolls above second fruit section and vegetative branches in bolls of single plant were 9.7%, 11.0%, 9.8% and 2.2%, 4.4%, 1.0G respectively, which indicated the common characters of early maturity and compact plant type. Plant height, number of vegetative branches and the vegetative branch length had great differences, varia- tion coefficient were 25.0,22.5,31.6 respectively, and there were huge differences with bolls bearing, variation coefficient was 69.3, while the other traits had less differences. Results showed genetic di- versity of agronomic traits of varieties in the early cotton region, the early maturing character of up- land cotton produced good coordination effect for other agronomic traits and achieved its high yield.

关 键 词：早熟陆地棉 农艺性状 变异系数 遗传多样性 

分 类 号：S562[农业科学—作物学]