【摘要】 以淮棕杂1号、淮绿杂1号和白色棉亲本材料zms-41为材料,研究了棕色棉、绿色棉及其亲本生理特性及产量性状的差异。结果表明,亲本叶绿素(a+b)含量最高,棕色棉次之,绿色棉最低,盛花期后绿色棉叶绿素a、b的含量与亲本差异明显。绿色棉和棕色棉叶面积系数的增长主要在棉花生育中前期,盛花期以后,叶面积系数下降较快;叶比重在整个生育期相对较低。绿色棉和棕色棉的光合速率在盛花前期略高于亲本,蒸腾速率在蕾期略高于亲本,盛花期明显低于亲本。棕色棉较绿色棉增产16.7%。与亲本相比,绿色棉和棕色棉的产量低、单株成铃数少、衣分低、铃重轻。更多还原

【Abstract】 In this paper,the colored cotton varieties Huaizongza 1(brown fiber),Huailuza 1(green fiber),and their parental material zms-41(the contrast) were used as experimental materials to analyze the physiological characteristics and yield variation.The results showed the chlorophyll content(a + b) was the highest in the parental plant while lowest in green-fiber one.The chlorophyll content(a + b) were great differences between green-fiber cotton cultivar and the parental plant after full-blooming stage.Compared with the contrast,the leaf area indices of brown-fiber cultivar and green-fiber one went up mainly in the early growth stage but fell faster after full-blooming stage,and the specific leaf weight of colored cotton was relatively lower in the whole growth period.Not only the photosynthetic rate in the former full-blooming stage but also the transpiration rate in the bud stage of green-fiber cultinar and brown-fiber one were little higher than that of the contrast,but their transpiration rates were obviously lower than that of the contrast in the full-blooming stage.For yields,there were 16.7 % increase in green-fiber cultivar than in green-fiber one.Compared with the contrast,the two colored cotton varieties presented low yield,boll weight,lint percentage and number of cotton boll per plant.更多还原