【摘要】 用双列杂交方法研究了小麦亲本品种8个性状的配合力.结果表明,同一性状的不同亲本间或同一亲本不同性状间一般配合力和特殊配合力方差有明显差异,亲本品种自身的性状表现与其配合力也不尽相同.百粒重、每穗粒数、穗长等具有较高的遗传力,在早代选择可获得较好的效果,而单株穗数、单株粒重的遗传力偏低,不宜在早代进行严格选择.更多还原

【Abstract】 Eight wheat varieties with various yield factors were used in the design of complete diallel cross to study the combining ability of eight yield characters in wheat. The results indicate that the general combining ability and the variance of special combining ability were different between various characters of a variety or between various varieties of a character. The appearance of a variety was not identical with its combining ability . Hundred kernal weight and kernal number per head etc have high heritability relatively,so it should get a good result to select those characters in early generations; head number per plant and harvest index have low heritability and should not select them strictly in early generations.更多还原