草莓果实主要数量性状变异及相关性研究

以露地栽培的82份草莓品种(系)为材料，对其主要数量性状的变异、分布规律及相关性进行了研究和分析。结果表明，草莓果实硬度、可溶性固形物、平均单果重、最大单果重和单株产量基本呈正态分布，不同性状的变异不同；果实硬度与平均单果重、单株产量分别呈显著正相关和极显著正相关，平均单果重与最大单果重及单株产量均呈极显著正相关，最大单果重与单株产量呈极显著正相关。此研究为草莓育种的亲本选配和杂交后代预先选择提供了依据。

Variation and Correlation Analysis of Main Quantitative Characters Among Strawberry Germplasms

Variation condition, distribution rule and correlation of main quantitative character of 82 open ground strawberry varieties(or lines)were studied and analyzed. The results showed that: Fruit firmness, soluble solid content, mean single fruit weight, max single fruit weight and yield of per plant were normal distribution respectively. The variation of different character is differrent. Correlation analysis showed there were notable positive relationship between fruit firmness and mean single fruit weight, and definitely positive relationship between fruit firmness and yield of per plant, and definitely positive relationship between mean single fruit weight and max single fruit weight and yield of per plant, and definitely positive relationship between max single fruit weight and yield of per plant. The research provided basis for preselection of parent and hybrid offspring of strawberry breeding.