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半矮秆大豆新品系通过垄作和平作窄行密植产量比较 ,同一品系垄作高产、平作窄行密植不一定高产。通径分析结果表明 :平作窄行密植栽培直接影响单株粒重的性状是单株粒数 ,其次是百粒重 ,单独选择任一性状都可提高产量。间接影响单株粒重的性状是单株荚数、有效分枝数。垄作栽培直接影响单株粒重的性状是单株荚数 ,间接影响单株粒重的性状为有效分枝数、单株粒数。矮秆、半矮秆育种F1～F5代主要是针对与产量有关的性状进行选择 ,产量的选择必须在窄行密植条件下进行。
Semi-dwarf new lines of soybeans peace through the narrow row close planting yield comparison, the same line ridge yield, flat for narrow row close planting is not necessarily high yield. The results of path analysis showed that the traits that directly affect the grain weight per plant of the narrow row and close planting cultivation were the grain number per plant, followed by the grain weight of 100, and the selection of any one trait alone could increase the yield. Indirectly affect the grain weight traits per plant number of pods, the effective number of branches. The characters of single cropping weight directly influencing the grain weight per ridge were pods per plant, and the traits indirectly influencing the grain weight per plant were the number of effective branches and the number of grains per plant. Dwarf, semi-dwarf breeding F1 ~ F5 generation is mainly for yield-related traits to choose from, the choice of production must be carried out in narrow row close planting conditions.