3个早熟陆地棉株型性状的初步研究  

Elementary Study on Phenotypic Traits of Three Early Maturing Upland Cotton

作　　者：肖光顺[1] 李保成[1] 田笑明[2] 陈红[1] 

机构地区：[1]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),新疆农垦科学院棉花研究所,新疆石河子832000 [2]新疆生产建设兵团农业局,乌鲁木齐830000

出　　处：《西北农业学报》2013年第10期62-67,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：兵团科技攻关计划(2011BA001)

摘　　要：以西北内陆棉区3个主栽早熟陆地棉品种新陆早33号(Ⅰ型)、新陆早36号(Ⅱ型)、新陆早42号(Ⅰ-Ⅱ型)为材料,在20万株/km2的密度下,初步研究早熟陆地棉的株型性状,并讨论其相应性状的综合效果。结果表明:3个品种株型差异较大、表现出明显的遗传多样性;Ⅰ-Ⅱ型果枝品种表现出较好的丰产潜力。23个表型性状有6个变异系数大于10%,5个属株型即主茎叶片数、株高、果枝数、叶枝数、叶枝长,1个属产量即叶枝铃数。方差分析F值大于0.05显著水平的12个性状包括熟性、株型、产量、品质类,占52.2%;8个大于0.01显著水平的性状中3个属株型即主茎叶片数、株高、果枝数,2个属产量即单铃质量、百粒质量,3个属品质即长度整齐度、比强度、马克隆值。3个品种变异系数与F值变化一致的性状主要在株型上,而在F值上产量、品质也有较显著的差异。A study was conducted in Cotton Institute, Xinjiang Academy of Agricultural and Reclama- tion Science in 2011. Taking three main-planting early maturing upland cotton Xinluzao 33 （pattern I ）, Xinluzao 36 （pattern II ） and Xinluzao 42 （pattern I -II ） as materials, in planting density of the 200 000 plants per hectare, plant traits were talked about. The results showed that there were signifi- cantly differences on plant patterns of early maturing upland cotton which displayed vital genetic di- versity, and varieties of pattern I-II had goodly yield potential. Among 23 phenotypic traits, more than 10G variation coefficient was detected in 6 traits, including 5 plant pattern traits, named leafsbearing stem, plant height, sympodial branch number, monopodial branch number and monopodial branch length, and 1 yield trait named Bolls bearing monopodial branch . Twelve traits were detected difference at 0.05 significant level, including maturity, plant patterns, yields and q for 52.2%. Within 8 traits showed difference at 0.01 significant level, including 3 namely leafs bearing stem, plant height, and sympodial branch number, 2 yield-rel mass per boll,100-seed weight and 3 quality traits namely length uniformity, fiber uality, accounting plant typic traits ated traits namely strength, miaire value. The consistently changes of variation coefficient and F of the three varieties was mainly on plant patterns, while yields and quality had also a significant difference on the F value.

关 键 词：早熟陆地棉 株型 表型性状 评价 

分 类 号：S562[农业科学—作物学]