摘要
对 2 1份苦瓜种质材料的 15个主要农艺性状进行了相关性和主成分分析。相关分析结果表明 :第一雌花节位、雌花率、雌花开花期和单株结瓜数与前期产量极显著相关 ,单株结瓜数、前期产量、雌花率、第一雌花节位和雌花开花期与总产量极显著相关 ;主成分分析结果表明 :前 4个主成分 (早熟因子、果实因子、生长势因子和瓜长因子 )对变异的贡献率达 79.77%。为苦瓜亲本的性状选择提供了依据。
Fifteen agronomic characters of 21 balsam pear cul tivars were analyzed by correlation and principal components. The results of cor relation analysis revealed that the early-stage yield correlated very significa ntly with the node order of the first female flower, rate of female flowers, blo oming period of female flowers and fruit-bearing number per plant, and the tota l yield correlated very significantly with the fruit-bearing number per plant, early-stage yield, rate of female flowers, node order of the first female flowe r and blooming period of female flowers. The results of principal component anal ysis showed that the cumulative ratio of contribution of first four components i ncluding early-maturing, fruit, growth vigor and fruit-length to the total var iation reached 79.77%. The above results could underlie selecting the major agro nomic characters of balsam pear parents.
出处
《上海农业学报》
CSCD
2004年第4期33-36,共4页
Acta Agriculturae Shanghai
基金
福州市科技发展基金项目 (2 0 0 2 -9)。
关键词
苦瓜
农艺性状
相关分析
主成分分析
育种
Balsam pear
Agronomic character
Correlation ana lysis
Principal component analysis
