品种、播期及宿生年限对陆地棉越冬成活率的效应  

The Effect of Varieties,Sowing Date and Perennial Cultivation on Survival Rate of Upland Cotton after Winter

作　　者：陈国平[1,2] 张新[1] 周瑞阳[1] 赵洪涛[1] 

机构地区：[1]广西大学农学院,广西南宁530005 [2]广西柑桔研究所,桂林541004

出　　处：《西北农业学报》2010年第12期53-58,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家科技支撑计划农林动植物育种工程项目协作子课题(2006BAD01A05-xz02)

摘　　要：采用随机区组设计,以10个陆地棉品种为供试材料,分2期播种和以4个陆地棉品种为供试材料,研究3年生、2年生、1年生棉的越冬成活率。结果表明,品种、播期对越冬成活率有显著影响,中928 F1、太175-1 F2、湘杂棉3号的越冬成活率显著高于其他品种,播种早的越冬成活率显著高于播种迟的;种植密度、冬季施肥对越冬成活率无明显影响;宿生棉的越冬成活率因品种、时期而异,宿生年限对陆地棉越冬成活率无明显影响。宿生栽培应选择越冬抗寒性较强、宿生性较好的抗虫杂交棉品种,加强宿生棉的中后期管理,有利于提高越冬植株的成活率。Random block design and orthogonal arrays were designed to investigate the survival rate of upland cotton after winter for 10 varieties in 2 sowing dates,for 4 varieties of upland cotton with their triennial,biennial and annual cultivation,in Nanning Guangxi from 2005 to 2007.The results showed that the effects of varieties and seedling date on survival rate of over-winter were significant.The survival rate of Zhong 928F1,Tai 175-1 F2 and Xiangza3 was very significantly higher than that of others.Properly earlier seedling increased the survival rate significantly.There were no significance effects of density and fertilizer application in winter on the survival rate of upland cotton after winter.The survival rate of perennial cotton changed in different varieties and stages and the effects of perennial ages on survival rate was not significant.The insect-resistant hybrid cotton with better cold resistance and being better perennial was suggested for perennial cultivation.It would increase the survival rate of plates for overwinter by strengthening the management on perennial cotton in middle and late stage.

关 键 词：陆地棉 品种 播期 宿生年限 越冬成活率 

分 类 号：S562[农业科学—作物学]