摘要
用3个试验的资料,对棉花抗红铃虫的一些鉴定指标进行了主成分分析。结果表明,前4～5个主成分对总变异的贡献率达90％以上。卵量、籽花含虫量、僵黄花率等是棉花抗红铃虫的主要鉴定指标。
Principal component analyses of evaluating indices for resistance to pink bollworm in cotton were carried out based on the data from three experiments in 1984～1986.The results showed that the contribution of the first four or five components to the total variation reached over 90％.Eggs deposited by pink bollworm, larvaes in seed cotton, rotted seed cotton percentage etc.are important indices evaluating resistance to bink bollworm in cotton.
出处
《湖北农学院学报》
1992年第1期28-33,共6页
Journal of Hubei Agricultural College
关键词
棉花
红铃虫
抗性
主成分分析
cotton
resistance to pink bollworm
principal component analysis
