【摘要】 对２２０个国内外不同来源的陆地棉无色素腺体品种（系）种子粗蛋白、可溶性蛋白和棉酚含量的研究表明，三个性状的总体平均值分别为４１．４６％、１１．８２％和０．０１７４％。该遗传资源群体具有蛋白质含量较高但变异程度较小、绝大多数品种棉酚含量符合国际卫生标准（＜０．０４％）且变异程度很大的特点，４０％的品种其粗蛋白含量在４２％以上，棉酚含量在０．０４％和０．０２％以下的品种分别占９１．８７％和７５．４５％。国内育成品种的粗蛋白含量显著高于国外引进品种，春播品种显著高于夏播品种；而可溶性蛋白和棉酚含量在这些品种类和相互之间无显著差异。中无１０９８、浙棉９号、冀棉１９号、绵阳４１７６等１６个品种被鉴定筛选为粗蛋白含量较高（＞４５％）的种质材料。更多还原

【Abstract】 The studies were conducted on the protein and gossypol contents of 220 uplandglandless cottons.The means of the crude protein,soluble protein and gossypol contents of thepopulation were 41.46%,11.82%and 0.0174%,respectively.The characteristics of this ge-netic resources were of higher protein content with lower variability and lower gossypol(<0.04%)for most entries.Considerable variability was found in gossypol content.of 220cottons,each of forty percent of entries had the protein content above 42%.The entries withthe gossypol contents below.04% or 0.02% accounting for 91.81% or 75.45% of the totalnumber of cottons.There was a signficant difference between Chinese entries and foreign cot-tons in crude protein content.Also,the difference between the groups of full season cottonand of short-season cotton was significant.However,for either kind of entry pair,no statis-tically significant differences were detected between groups in soluble protein or gossypol.Six-teen cottons with higher protein content(>45%)such as Zhongwu 1098,Zhemian 9,Jimian19 and Mianyang 4176 were selected and commended to be used in future breeding efforts.更多还原