利用2个栽培大豆(G.max)品种与2个野生大豆(G.Soja)材料配制的4个杂交组合,研究其F1的优势指数、超亲优势及F1与亲本的主要性状间的相关性。结果表明,F1单株粒重的优势指数最大,其次为株高、单株荚数。百粒重和开花至成熟天数低于双亲平均值。F1的株高、单株荚数、百粒重、生育日数与其双亲平均值显著相关。 Four cross combinations of two cultivated soybean (G. max) and two wild soybean (G. soja) cultivars were used to study their F1 dominant index, the super-parents’ superiority and the correlation between F1 and the main characters of their parents . The results showed that F1 had the highest grain weight per plant weight, followed by plant height and pods per plant. 100-grain weight and flowering until the number of mature days is below the average of both parents. The plant height, number of pods per plant, weight of 100 seeds and days of birth were significantly correlated with the average of their parents.