摘要
对 10个大豆品种的 9个农艺性状进行因子分析 ,结果表明 :这些品种的 9个农艺性状可由3个相互独立的主因子所代表。 F1* 是生产力源库因子 :由株高、茎粗、有效节、百粒重和株粒重组成 ;F2 *是籽粒生产力因子 :由有效荚、有效粒、株荚重组成 ;F3*是分枝因子 :由分枝数单一性状组成。其中 F1* 的作用最大 ,F2 * 的遗传不稳定。为有效地提高粒重和产量 ,首先要注意株荚数、株粒数的改良。根据诸供试品种的主因子得分向量 ,进行了聚类分析 ,将 10个品种划分为 4类 。
In soybean 9agronomic characteristics of 1 0 varieties were analyzed with the method of factors analysis.The result showed thatmostof the correlation in9agronomic characters of the varieteies may stand for3independent main factors.plant height,stem diameter,effec- tive nodes,weight per1 0 0 seeds and weight of seeds per plant constituted the productivity source and store factor F*1 .Factor F*1 ,a seed productivity factor was made up of effective pods,effective seeds,weight of pods per plant.Factor F*3 was the largest and that of F*2 in- herited instably. Therefore,the number of the pods and seeds per plant in the varieties should be improved,and weight of seeds and yield further increased.Based of the score vec- tors of the factors in the varieties,1 0 varieties were classified into4categories to provide useful information for the breeding of soybean.
出处
《河南职业技术师范学院学报》
1998年第2期20-24,共5页
Journal of Henan Vocation-Technical Teachers College
关键词
大豆
农艺性状
因子分析
聚类分析
品种
soybean,agronomic characteristics,factor analusis,cluster analysi
