油菜产量与主要性状的灰色关联度分析  

Gray relational grade analysis between the rapeseed yield and related traits

作　　者：钟丽[1,2] 

机构地区：[1]广西农业科学院桂北分院 [2]桂林市农业科学研究所,广西桂林541006

出　　处：《南方农业学报》2012年第4期421-424,共4页Journal of Southern Agriculture

基　　金：现代农业产业技术体系建设专项资金资助项目(CARS-13)

摘　　要：【目的】通过对油菜产量与相关性状的灰色关联度分析,为油菜育种中对数量性状的选择提供参考。【方法】利用灰色系统理论中的关联度分析法对11个油菜品种的9个农艺性状及单株产量进行分析。【结果】油菜单株产量与其相关农艺性状的关联度为:生育期0.6253、株高0.6343、分枝部位0.6421、第一次有效分枝数0.6458、主花序有效长度0.5911、主花序有效角果长度0.5775、单株有效角果数0.5917、每角粒数0.5983、千粒重0.6762;关联序为:千粒重>第一次有效分枝数>分枝部位>株高>生育期>每角粒数>单株有效角果数>主花序有效长度>主花序有效角果长度。【结论】在油菜育种中,应加强对千粒重、第一次有效分枝数的选育力度。[Objective]The present study was conducted to analyze the gray relational grade between the rapeseed yield and its relative traits of rape to provide reference resources for selecting quantitative traits in rape breeding. [Method ]Based on the theory of gray relational system, the gray relational grade analysis was made between plant yield and 9 relative agronomic traits in 11 rapeseed varieties. [Result]The results showed that the gray relational grade between the yield and its related traits was observed as follows ：growth period 0.6253, plant-height 0.6343, branch position 0.6421, 1^st effective branch number 0.6458, length of primary inflorescences 0.5911, length of effective siliquaes in primary inflorescence 0.5775, total effective siliquaes per plant 0.5917, grains per siliquae 0.5983, weight of lO00-grain 0.6762. The relational sequence recorded as weight of 1000-grain〉1^st effective branch number〉branch position〉plant height〉growth period〉grains per siliquae〉total effective siliquaes per plant〉length of primary inflorescences〉length of effective siliquaes in primary inflorescences. [Conclusion]In Guangxi,we should strengthen to breed rapeseed varities in 1000-grain weight, and 1^st effective branch number must be taken into account on priority basis in rape breeding.

关 键 词：油菜 产量 相关性状 灰色关联度分析 

分 类 号：S565.4[农业科学—作物学]