抗虫棉组合杂种优势比较及相关分析研究  

Comparison and Correlation Analysis for Heterosis of Pest-resistant Cotton Combinations

作　　者：郝良光[1] 夏绍南[1] 陈俊英[1] 周宝珍[1] 刘新稳[1] 柯兴盛[1] 

机构地区：[1]江西省棉花研究所,江西九江332105

出　　处：《江西农业学报》2005年第3期22-26,共5页Acta Agriculturae Jiangxi

基　　金：江西省科技厅农业科技攻关项目

摘　　要：用6个抗虫棉亲本与6个常规棉亲本配置杂交组合,对其中的23个组合F1进行了杂种优势比较及相关分析,结果表明,强优势组合当首推K6×K5,其综合性状优良,次推B×K2和C×K1组合;单铃重与抗亲优势、中亲优势及竞争优势之间均达极显著水平的正相关,选择大桃品种作杂交亲本,是配置强优杂交组合的主要途径之一。Several hybrid cotton combinations were bred by crossing among six pest-resistant cotton varieties and six traditional cotton varieties, and F1 generations of 23 hybrid combinations among them were studied by heterosis comparison and correlation analysis. The results showed that combination K6×K5 had the strongest heterosis and the best comprehensive traits, followed by combinations B×K2 and C×K1. There was significant positive correlation between single boll weight and anti - parental heterosis, mid - parental heterosis, competitive heterosis （ P 〈0.01 ）. So selecting big - boll cotton variety as crossing parent is the main approach to breeding hybrid cotton combinations with strong heterosis.

关 键 词：抗虫杂交棉 杂种优势 相关分析 

分 类 号：S562.033[农业科学—作物学]