摘要
应用主成分分析法，从样本相关矩阵出发，以102株8年生无患子（Sapindus mukurossi Gaertn．）初选优株的12个主要种实性状（果实质量、果指数、果体积、果皮厚、果皮质量、种子质量、种指数、种体积、种仁质量、单株产量、果皮皂苷质量分数、种仁油脂质量分数）进行分析．以性状累积方差贡献率大于80％为标准．确定了4个反映无患子种实主要经济性状的主成分（特征值〉1），即产量因子、油脂因子、产量皂苷因子和种实形态因子．其相应贡献率分别为47．271％、15．285％、10．206％和8．71】％．．通过对样本重要主成分值的比较分析，按5％入选率分别筛选出不同利用方向的6种类型的优良单株，即高产型、高油脂型、高皂苷型、高产高油脂型、高产高皂苷型和复合型。不同类型优良单株主成分得分值的现实增益为165％～311％．这说明利用主成分分析法选出的不同类型优良单株具有显著的优异性，可在生产中推广应用。
Based on a specimen correlation matrix, with 102 eight-year-old Sapindus mukorossi Gaertn. individuals, the experiment was conducted to determine 12 major economic characteristics by the principal component analysis, including the weight per fruit, fruit finger, the volume of fruit, the thick of pericarp, the weight of pericarp, the weight per seed, seed finger, the volume of seed, the weight of kernel, the weight per kernel, the yield per plant, the saponin contents in the peep and the oil contents, in the kernel. Four factors （eigenvalues〉 1 ） were extracted from the converted data matrix with their cumulative contribution of 81. 929%, including 47. 727% of yield factor, 15. 285% of oil factor yield, 10.206% of saponin factor and 8. 711% of form factor. The superior individuals of six types are selected, in top 5%, including high-yield type, high-oil type, high-saponin type, high-yield and high-oil type, high-yield and high-saponin type, and com- pound type. The realized gains of superior individuals in each type are in 165 % -311%. The principal component analysis can be used to select superior individual based on the main fruit traits and seed traits of S. mukorossi. The superior indi- viduals can be applied in production.
出处
《东北林业大学学报》
CAS
CSCD
北大核心
2014年第4期6-10,45,共6页
Journal of Northeast Forestry University
基金
浙江省重大科技专项重点农业项目(2011C12015)
林业公益性行业科研专项项目(200804032)
关键词
无患子
种实性状
主成分分析
优树选择
Sapindus mukorossi
Fruit and seed traits
Principal component analysis
Superior individual selection
