EPISTASIS IN THE RESISTANCE OF PEPPER TO PHYTOPHTHORA STEM BLIGHT (PHYTOPHTHORA-CAPSICI L) AND ITS SIGNIFICANCE IN THE PREDICTION OF DOUBLE CROSS PERFORMANCES

被引：0
|
作者：
BARTUAL, R
LACASA, A
MARSAL, JI
TELLO, JC
机构：
[1] CTR REG INVEST AGR MURCIA,E-30150 LA ALBERCA,SPAIN
[2] INST NACL SEMILLAS & PLANTAS VIVERO,E-28003 MADRID,SPAIN
来源：
EUPHYTICA | 1993年 / 72卷 / 1-2期
关键词：
BIAS; CAPSICUM ANNUUM; DOUBLE CROSS; EPISTASIS; PEPPER; PHYTOPHTHORA CAPSICI; PREDICTION;
D O I：
暂无
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Epistatic effects are present in the resistance to Phytophthora capsici in peppers (Capsicum annuum). Genetic statistical analysis shows that additive by additive epistasis as well as higher order epistatic effects contribute to the total variation of resistance, significantly. Higher order epistatic effects caused bias in the prediction of the performance of double crosses, the difference between observed and predicted performances being significant. The relative importance of higher order epistasis with respect to additive by additive epistasis seems to be correlated with the aggressiveness of the isolate of Phytophthora capsici.
引用
收藏
页码：149 / 152
页数：4
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