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本文主要报道扁蓄豆与肇东苜蓿杂交第一、二、三代杂交种的形态特征和生物学特征的变异动向.F_2和F_1代杂种的形态和主要经济性状较F_1代均有显著的变化.并向亲本肇东苜蓿方向变异,到第三代大部分植株表现近似肇东苜蓿中间型的形态特征,并趋向于稳定.
In this paper, we report the morphological and biological characteristics of the first, second and third generation hybrids between Bastard beans and Zhaodong alfalfa.The morphological and economic characteristics of F_2 hybrids and F_1 hybrids have significant changes compared with F_1 generations. And mutated to the parent alfalfa Zhaodong. Most of the plants in the third generation showed morphological characteristics similar to those of the middle Zhaodong alfalfa and tended to be stable.