HETEROSIS AND EPISTASIS IN RAPESEED ESTIMATED FROM GENERATION MEANS

被引：15

作者：

ENGQVIST, GM

BECKER, HC

机构：

[1] Department of Crop Genetics and Breeding, The Swedish University of Agricultural Sciences, Svalöv

来源：

EUPHYTICA | 1991年 / 58卷 / 01期

关键词：

BRASSICA-NAPUS; SSD LINES; HETEROSIS; EPISTASIS; YIELD; QUALITY TRAITS;

D O I：

10.1007/BF00035337

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Heterosis and epistasis in spring oilseed rape (Brassica napus L.) was analysed by comparing generation means for ten agronomic traits. Parents, F2, F3 and F6 generations of four crosses with Swedish and French material were investigated. The F2 was 11% higher in yield, earlier in flowering time, and slightly later in maturation when compared with the parents. Randomly derived single seed descent lines had an 8% lower yield, were later flowering and maturing than the parents in F6. This poorer average performance of recombinant lines is explained by the loss of favourable epistatic interactions present in the parents.

引用

页码：31 / 35

页数：5

共 10 条

[1]

BECKER HC, 1987, 1987 BER ARB TAG AG, P67

[2]

Downey R. K., 1989, OIL CROPS WORLD

[3]

GALLAIS A, 1979, ANN AMELIOR PLANT, V29, P1

[4]

LEFORTBUSON M, 1982, AGRONOMIE, V2, P19