新疆农业科学2017，Vol.54Issue(9)：1579-1586,8.DOI:10.6048/j.issn.1001-4330.2017.09.002
陆地棉免打顶种质资源形态指标的研究及鉴定
Research and Identification of the Morphological Indices of Topping-free Cotton's Germplasm Resources
摘要
Abstract
[Objective] To study the phenotypic traits of the germplasm resources of the cotton with particular features.The results might provide references for future plant shaping,non manual chemical control topping and cotton varieties that are suitable for machine harvesting.[Method] Through field cultivation and fixed point observation,the research studied the plant morphology of sicot75 throughout its growth duration under the condition of no chemical control topping.The collected data were then analyzed and compared.[Result] Without chemical control the differences were not significant between the height of first fruiting branch,node of first fruiting branch,number of sympodials and number of nodes to the indices after the treatment.For the chemical control group,a significant difference was shown between the initial plant height and the plant height after the treatment.The difference,however,met the requirements of machine harvesting.[Conclusion] Partial morphological indices of sicot75 are not sensitive to mepiquat chloride,and the plant height is stable under the condition of no chemical control.This feature,used as an important germplasm resource,provides an effective resource reserved for cultivating topping-free cotton varieties with suitable plant type and high stability in terms of plant height.关键词
棉花/免打顶/形态指标/株型Key words
cotton/topping-free/morphological indexes/plant type分类
农业科技引用本文复制引用
马晓梅,李保成,周小凤,董承光,王新,李生秀..陆地棉免打顶种质资源形态指标的研究及鉴定[J].新疆农业科学,2017,54(9):1579-1586,8.基金项目
兵团重大专项“适宜机采的不同生态区棉花品种筛选与评价”(2016AA001-1) （2016AA001-1）
兵团育种专项“早熟机采棉新品种选育”(2016AC027) （2016AC027）
The Key S&T projects of Xinjiang Production and Construction Corps " Screening and Evaluation of Cotton Varieties Suitable for Machine Harvesting in Different Ecological Areas" (2016AA001-1) and the Breeding Projects of Xinjiang Production and Construction Corps"Breeding of Early-maturity Cotton Varieties Suitable for Machine Harvesting" (2016AC027) （2016AA001-1）
