摘要
西瓜是世界重要的经济作物,因此,明确西瓜主要性状之间的关系具有重要意义。以25份西瓜品种为试材,进行相关性分析和主成分分析,以期得出西瓜品质性状与产量之间的关系,为育种选择方向提供参考。结果表明:第一雌花节位与近皮可溶性固形物含量呈显著负相关;单果质量与果实长度、果实宽度、果皮厚度和小区产量呈极显著正相关;果实长度与果实宽度、果形指数、果皮厚度、小区产量呈极显著正相关;果实宽度与果皮厚度、小区产量成极显著正相关;果形指数与果皮厚度呈极显著正相关;果皮厚度与小区产量呈极显著正相关;中心可溶性固形物含量与近皮可溶性固形物含量呈极显著正相关。主成分分析结果表明,前3个主成分特征值累积贡献率达87.842 0%,应从单果质量、可溶性固形物含量、果形指数对西瓜品质、产量育种进行正向选择。
Watermelon is a kind of important economic crop in the world, therefore,it has an important significance to confirm relationship between main characters of watermelon. The experiments of correlation analysis and principal component analysis of 25 watermelon varieties were studied, to clear out the relationship of quality characteristics and yield. The results showed that the node of the first flower and near skin soluble solids content had significant negative correlation; fruit weight, fruit length, fruit width and pericarp thickness had a significantly positive correlation with yield;fruit length and fruit width,fruit shape index,pericarp thickness were significantly positive correlation with yield; pericarp thickness, yield had a very significantly positive correlation with fruit width~ fruit shape index and pericarp thickness were significantly positive correlation with pericarp thickness; small significantly positive correlation with the yield ~ central soluble solids content and soluble solids content in skin showed significantly positive correlation. Principal component analysis showed that the first three principal components of the characteristic value of the cumulative contribution rate of 87. 842 0%, from the single fruit weight, soluble solids content ,fruit shape index of watermelon quality and yield breeding positive selection.
出处
《北方园艺》
CAS
北大核心
2017年第12期35-39,共5页
Northern Horticulture
基金
农业部东北地区园艺作物生物学与种质创制重点实验室大学生科技创新资助项目(NEAU-HC-UNDS-201624)
国家西甜瓜产业技术体系资助项目(CARS-026-02)
关键词
西瓜
主要性状
相关性分析
主成分分析
watermelon
main traits
correlation analysis
principal component analysis
