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通过对不同来源的79份供试品种在长春的6年种植,估算了8个性状的遗传力,并进行了遗传、表型、环境通径分析.结果表明,①来源于黑龙江的30份品种.主穗小穗数品种间差异不显著,对单株产量的直接贡献较大的性状有主穗穗长和株高。②来源于吉林、辽宁、内蒙古的29份品种表现出很强的适应性,对单株产量贡献较大的性状有主穗小穗数、成熟期和千粒重;③来源于北京的20份品种,株高品种间差异不显著,对单株产量贡献较大的性状有成熟期、抽穗期、主穗穗长;④遗传力较大的性状,可用表型相关系数和通径系数代替遗传的相关系数和通径系数.
Eighty-seven cultivars from different origins were planted in Changchun for six years, and the heritability of eight traits was estimated and the genetic, phenotypic and environmental path analysis was conducted. The results showed that: ①A total of 30 cultivars from Heilongjiang There was no significant difference among the main spikelets, and the major direct contribution to the yield per plant was the spikelet length and plant height. ② The 29 cultivars from Jilin, Liaoning and Inner Mongolia showed strong adaptability and the major contribution to the yield per plant were spikelet number, maturity and 1000-grain weight; ③20 cultivars from Beijing, There was no significant difference among the varieties of plant height, and the characters that contributed more to the yield per plant were mature stage, heading stage and spike length of main spike. ④The trait of larger heritability could be replaced by phenotypic correlation coefficient and path coefficient Coefficient and path coefficient.