Inheritance and Selection Effect of High-protein Soybean Mutant Lines Induced by EMS

doi:10.3321/j.issn:1000-7091.1993.z1.008

Abstract

Abstract: The mutants were induced from seeds of soybean cultivars Jidou 1 and Jidou 6 with 0.8% ethyl methane sulphonate (EMS),and the related characters of their M₂ generations were analysed. The results showed that the protein content negatively correlated with the oil content, it positively correlated with the plant height, 1000-seeds-weight, days of growing stage, days of flowering season, but negatively correlated with the ratio of seed weight to stem weight. The relation values of grain protein content in M₂ and M₃ presented significant variation. The mutant strain in which the grain protein content was high were selected from M₂ to M4 generations. The grain protein content in the mutant lines selected was higher than that in the original varieties by 2.0%-3.0%.

Key words: Soybean, Chemical mutation, Ethyl methane sulphonate, Protein con-tent, Breeding

Wei Yuchang, Yu Xiupu, Du Lian'en, Wu Mingqi. Inheritance and Selection Effect of High-protein Soybean Mutant Lines Induced by EMS[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1993, 8(S1): 33-37. doi: 10.3321/j.issn:1000-7091.1993.z1.008.

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