摘要
用因子分析法,对18个辣椒品种的13个果实数量性状进行分析,结果表明这些性状可简化为受4个主因子控制的性状群,F1为果重因子,由果肉鲜重、单果重、果梗长组成;F2为长度发育因子,由果宽、胎座宽、果长、胎座长组成;F3为营养因子,由干物质重、可溶性固形物、vC含量组成;F4为产量因子,由产量/株,果数/株组成。这4个主因子对变异的累计贡献率为85%以上,基本保持了13个性状的绝大部分信息。从主因子出发进行辣椒育种,可以加大目标性状的针对性,提高选择效率。
Factor analysis was performed for 13 fruit quantitative characters of 18 pepper varieties. The results indicated that 13 fruit characters of the varieties might be simplified to 4 independent character groups controlled by 4 main factors. Factor 1, a fruit weight factor, consisted of flesh weight of fruit, single fruit weight and pedicel length; Factor 2 was considered a length growth factor, consisting of fruit width, placenta width, fruit length, placenta length; Dry matter weight, soluble solids and contents of vitamin C , constituted a nutrition factor; Factor 4 was called a yield factor, containing fruit yield per plant and fruit number per plant. The accumulative contribution rate of the 4 major factors to total variation accounted for over 85%, maintaining most of information of 13 characters. The selective efficiency and the objective pertinency on breeding will be raised by means of main factors in pepper.
出处
《西北农业学报》
CAS
CSCD
北大核心
2006年第5期177-181,共5页
Acta Agriculturae Boreali-occidentalis Sinica
基金
陕西省农业分子生物学重点实验室基金项目资助(2002-2)
关键词
辣椒
数量性状
因子分析
Pepper
Quantitative characters
Factor analysis
