论文部分内容阅读
本文研究了江淮下游大豆地方品种生育期、产量、机械化栽培方面共17种数量性状的遗传变异。试验材料为本地区有代表性的78个地方品种,四次重复,随机区组设计。 性状的遗传型变异系数(GCV)、遗传力(h~2)以及预期遗传进度(GS)表明本区大豆地方品种自然群体生育前期、后期、全生育期,产量、分枝数、主茎节数、每节荚数、百粒重、瘪粒率、一株荚数、一株粒数、一株粒重、株高、结荚高度、倒伏性等15种数量性状具有丰富的遗传变异、选择潜力和良好的预期选择效果。证明除每荚粒数、茎粗两性状外,本区大豆地方品种主要数量性状的多基因资源十分丰富,是大豆育种宝贵的基本材料。
In this paper, we studied the genetic variation of 17 quantitative traits of soybean cultivars in the lower reaches of the Yangtze-Huaihe River during their growth period, yield and mechanization. The test materials were representative of 78 local varieties in the region, four replicates and randomized block design. The genetic variation coefficient (GCV), heritability (h ~ 2) and expected genetic progress (GS) of the traits indicated that the natural populations of the local soybean cultivars in the region had significant differences in the early growth period, the later growth period, the whole growth period, the yield, 15 quantitative traits such as number of pods per pod, weight of 100 kernels, ratio of defoliation, number of pods per plant, number per plant, weight of a plant, plant height, pod height and lodging were abundant, Choose potential and good expected choice effect. Proved that except for the number of seeds per pod, stem and leaf traits, the local soybean varieties of the main quantitative traits of multi-gene resources is very rich in soybean breeding is a valuable basic material.