摘要
对27份四川省安宁河流域洋葱品种的10个农艺性状与单个鳞茎鲜重等进行相关性及灰色关联度分析。结果表明:鳞茎鲜重与横径、纵径、开放鳞片鲜重、闭合鳞片鲜重、干物质含量、开放鳞片数、闭合鳞片数、鳞茎膨大期呈极显著正相关,相关系数分别为:0.851、0.808、0.985、0.752、0.814、0.635、0.581、0.731。鳞茎鲜重与生育期、叶片数呈显著性正相关,相关系数分别为:0.334、0.309。灰色关联度分析结果表明,各性状与洋葱鳞茎鲜重的关联程度依次为:开放鳞片鲜重>横径>干物质含量>纵径>闭合鳞片鲜重>鳞茎膨大期>开放鳞片数>闭合鳞片数>生育期>叶片数。在四川省安宁河流域,开放鳞片鲜重、横径和干物质含量是影响洋葱鳞茎鲜重的主要因素,可作为洋葱丰产育种的主要选择性状,同时也要考虑其它性状的选择。
Correlation and grey correlative degree between 10 agronomic traits and fresh weight of 27 onion samples,which were collected from An＇ning River valley of Sichuan were analyzed. The results indicated that the fresh weight of onion was significant positive correlated with transverse diameter, longitudinal diameter, open scales fresh weight, closed scales fresh weight, dry matter content, number of open scales and closed scales, bulb expansion period, with correlation coefficients of 0. 851,0. 808, 0. 985, 0. 752, 0. 814, 0. 635, 0. 581 and 0. 731. Fresh weight of onion was also positive correlated with period of duration and number of leaf with correlation coefficients of 0. 334 and 0. 309. Grey correlation analysis showed that the correlative degrees of different traits to fresh weight of onion were：open scales fresh weight〉〉 transverse diameter〉dry matter content〉longitudinal diameter：〉closed scales fresh weight〉bulb expansion period〉 number of open scaless〉number of cosed scales〉period of duration〉number of leaf. So in An＇ning river valley,Sichuan, open scales fresh weight, transverse diameter and dry matter content were the main factors affecting fresh weight of onion,and could be used as the main traits in high-yield breeding,at the same time the other traits should be concerned.
出处
《北方园艺》
CAS
北大核心
2013年第2期25-27,共3页
Northern Horticulture
基金
四川省教育厅重点科研基金资助项目(11ZA144)
关键词
洋葱
农艺性状
相关系数
灰色关联度
onion（Allium cepa L）
agronomic traits
correlation coefficient
grey correlative degree
