摘要
以吉林农业大学园艺学院蔬菜教研室收集的47份辣椒种质为材料,对其16个主要农艺性状进行相关性及主成分分析。分析结果表明,在相关性上,果实横径、果肉厚与产量呈极显著正相关;单株结果数与单果质量相互制约。品质育种上应注意对小果型品种的选择,其营养物质含量高,辣椒素含量较高。主成分分析上,前7个主成分的累计贡献率大于85%,说明前7个主成分就可以基本表达原16个农艺性状所代表的遗传特征。前7个主成分主要包括产量因子、株型因子、营养品质因子、单株果数因子和熟性因子,大致代表了供试辣椒品种的综合指标。
The correlation and principal component of 16 agronomic characters of 47 hot pepper cultivars collected by the laboratory were analyzed. The results showed that fruit width and flesh thickness had a significantly positive correlation with single plant yield; the fruit number per plant and average fruit weight influenced each other. In breeding for quality, the selections of small fruit with abundance nutritive substance and capsaicin should be pay attention to. Principal component analysis showed that the first 7 principal components characteristic values reach over 85% in their accumulative contribution rates,these principal components＇ values will represent the genetic characteristics of 16 agronomic characters. The first 7 principal components might be regarded as yield factor,plant model factor,nutrition quality factor,fruit number per plant factor and maturity factor. That represented the comprehensive indexes of the experimental cultivars.
出处
《长江蔬菜》
2010年第6期29-33,共5页
Journal of Changjiang Vegetables
关键词
辣椒
农艺性状
相关分析
主成分分析
Hot pepper
Agronomic traits
Correlation analysis
Principal component analysis
