【摘要】 通过对新疆地区农家种及外引的20份资源的株高、盘径、生育期、单株粒重、千粒重、出仁率、含油率的遗传力、变异系数及各性状相互关联的研究,结果表明:单株粒重变异系数最大(40.85%),生育期的变异系数最小,仅为4.83%。一个性状变异大小受材料种质类型和整齐度的影响,初步探索了向日葵各性状的变异程度及遗传规律,对此类资源的利用做出了科学评价,为选用亲本提供依据。更多还原

【Abstract】 The study on some Xinjiang local area varieties and 20 introduced resources were conducted including plant height,stem diameter,vegetation period,grain weight per plant,thousand seed weight,kernel percentage,oil content for heritability,coefficient of variation and the relationship on some Xinjiang local area varieties and 20 introduced resources.The results indicated that the coefficient of variation of grain weight per plant was the maximum(40.85%),coefficient of variation of vegetation period was the minimum(4.83%).A variation was affected by germplasm resource type and uniformity of material.The variation and inheritance of sunflower characters were explored preliminarily,giving the scientific evaluation of the use of such resources and providing the basis for developing parents.更多还原