西藏高原环境下印度芥菜型油菜农艺性状的典型相关分析  

Canonical correlation analysis of main agronomic and yield characteristics of India rapeseeds(Brassica juncea) in the Tibetan Plateau

作　　者：蒙祖庆[1] 次仁央金[1] 宋丰萍[1] 王建林[1] 

机构地区：[1]西藏农牧学院,林芝860000

出　　处：《中国生态农业学报》2012年第2期242-246,共5页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金项目(30760122);国家高新技术研究发展计划(863计划)项目(2009AA101105);国家农业部引进国际先进农业科学技术项目(948项目)(2010-Z54)资助

摘　　要：为了调查西藏高原环境下,印度芥菜型油菜的农艺性状表现,本文以引进的20份印度芥菜型油菜为材料,采用单因素随机区组设计并结合典型相关分析方法,对其主茎性状(4个变量)、分枝性状(3个变量)、角果性状(3个变量)、生育期性状(4个变量)、产量性状(4个变量)等5组农艺性状(共含18个变量)间的典型相关关系进行了研究。结果表明:印度芥菜型油菜单株产量主要由单株有效角果数决定;影响印度芥菜型油菜产量性状最主要因素是角果性状,其次是分枝性状、生育期性状和主茎性状;印度芥菜型油菜在产量性状、角果性状、分枝性状、生育期性状、主茎性状等5组性状间均有密切的联系。本文所得结论可为引进印度芥菜型油菜新品种资源的开发和利用提供科学依据。To investigate the agronomic performance of India rapeseeds（Brassica juncea） under the Tibetan Plateau environment,a randomized block experiment involving 20 Indian rapeseeds materials was conducted in Tibet.The canonical correlation analysis of 4 main stem characteristics（plant height,main stem basal diameter,main inflorescence length and first branch pod number）,3 branch characters（branch height,effective branch number per plant and effective first branch number）,3 silique characters（pod length,pod width and pod beak length）,4 phenophase characters（vegetative growth days,shared days of vegetative and reproductive growth,reproductive growth days and entire growth period days） and 4 yield characters（effective pod number per plant,seed number per pod,1000-grain weight and yield per plant） were analyzed.The results indicated that effective pod number per plant was the main factor of Indian rapeseed yield components.Silique characters were most critical for high-yield,followed by branch,phenophase and main stem characters.Main stem,branch,silique,phenophase and yield characters were closely related.The results provided the scientific basis for the development and utilization of Indian rapeseeds in the Tibetan Plateau environment.

关 键 词：西藏高原 印度芥菜型油菜 农艺性状 典型相关 

分 类 号：S565.4[农业科学—作物学]