摘要： 利用不同生态类型的品种,对甜瓜的果形遗传进行了研究.结果表明,其遗传参数m,d,h分别为1.255 2,-0.227 9,-0.068 0,甜瓜的果形遗传符合加性-显性遗传模型,且呈负向部分显性.由其世代方差估算果形指数的遗传力较高,广义遗传力为83.60%,狭义遗传力为65.9%,在育种实践中,具有较高的选择效果.
关键词:
甜瓜,
果形指数,
遗传模型,
遗传力
Abstract: The muskmelon varieties of different ecotype were used to study the heredity of fruit shapes.The result shows that genetic parameters m,d,h are 112552,-012279,-010680 respectively.Heredity of muskmelon fruit shapes conforms to additive-dominant effect genetic model,and shows negative partial dominant effect.The heritability of fruit shape index estimated by its generation variance is higher,the broad sense heritability is 83160%,the narrow sense heritability is 65194%,it has higher selection effect in breeding production.
Key words:
Muskmelon,
Fruit shape index ,
Genetic model,
Heritability
中图分类号:
李秀秀, 吕敬刚, 薛毅柳, 井立军, 加藤正弘. 甜瓜果形遗传的初步研究[J]. 华北农学报, 2002, 17(3): 80-83. doi: 10.3321/j.issn:1000-7091.2002.03.016.
LI Xiuxiu, LU Jinggang, XUE Yiliu, JING Lijun, Masahiro Kato. Preliminary Research on Heredity of Muskmelon Fruit Shapes[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(3): 80-83. doi: 10.3321/j.issn:1000-7091.2002.03.016.