2个环境条件下花生产量性状的遗传分析

Genetic analysis of yield traits under two environments in peanut

结果枝数、单株结果数和百果重是花生重要的产量性状,决定了花生产量的高低。该研究以远杂9102/皖花4号F2群体为材料,利用主基因+多基因混合遗传模型对2个环境中的花生结果枝数、单株结果数和百果质量3个性状进行遗传分析。结果表明,结果枝数在2个环境下均表现出受1对加性-显性主基因控制;单株总果数在合肥环境(E1)中表现出受2对加性-显性主基因控制,而在固镇环境(E2)中则表现出受1对加性-显性主基因控制;百果质量性状在2个环境下均表现出受2对等显性主基因控制。

The number, of pod branches （NPB）, the number of pods per plant（NPP） and lO0-pod weight（100PW） of peanut are important to yield traits. To offer uset＇ul intormation tor breeding cuhivars with high yield, we investigated NPB, NPP and 100PW of Yuanza 9102（P1）,Wanhua No.4（P2） and 133（Hetei,E1） F2 lines and 151（Guzhen,E2） F2 lines derived from the cross P1 xP2. Three traits were analyzed with mixed major gene and polygene inheritance model. Genetic analysis revealed that the NPB were controlled by one pairs of additive xdominance major genes in two environments. NPP were controlled by two pairs of additive xdominance major genes in Hetei, while NPP were controlled by one pairs of additive x dominance major genes in Guzhen.100PW was controlled by two pairs of equidominant major genes in two environments.