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以中、美、日、韩四国的大豆品种作亲本,组配成中×美、中×中、中×日、中×韩、美×中、美×日、美×美等26个杂交组合,分析了F4代农艺性状的遗传参数,结果表明:1)F4分枝始节、主茎分枝数等性状的遗传变异度较大;2)不同组合的株高、结荚高度、主茎节数遗传力较大;3)主茎分枝数、结荚高度等性状GS和RGS较大,有较高的遗传潜力;4)单株荚数、单株粒数与单株产量呈极显著正相关;百粒重与单株产量、荚宽呈显著正相关。
Soybean varieties from China, the United States, Japan, South Korea as parents, the United States with the United States, the group of medium ×, medium × day, × × Korea, the United States × × × × × × × × × × × × , The genetic parameters of agronomic traits in F4 generation were analyzed. The results showed that: 1) the genetic variation of traits such as F4 initial branch and main stem branch number were large; 2) The plant height, pod height, The number of heritability was greater; 3) the GS and RGS of traits such as branch number and pod height of main stem were larger and had higher genetic potential; 4) The number of pods per plant, Significantly positive correlation; 100-grain weight per plant yield, pod width was significantly positively correlated.