| 摘要: |
| 研究结果表明:①棉铃品质性状根据变异性分为3类,第1类包括铃重、籽指、纤维品质指数和伸长率,易受环境影响;第2类包括同时受控于环境和品种遗传性的强度、衣分和Mik值;第3类包括长度和整齐度。棉株不同部位铃品质性状变异中,下、中部铃明显一致,上、顶部铃一致,下、中部明显小于上、顶部,均大于整株铃。②棉铃品质性状根据相关性分3类,第1类以铃重和Mik值为中心,另含伸长率、整齐度;第2类包括强度和纤维品质指数;第3类包括籽指、衣分、长度,以籽指、衣分为中心。 |
| 关键词: 麦套春棉 棉铃 品质性状 相关关系 |
| DOI： |
| 分类号:S562.01 |
| 基金项目:山东省科委资助棉麦两熟双高产配套栽培模式的研究),山东省教委资助(山东省棉麦两熟区划) |
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| Variability and Correlation of Boll Quality Characters of Spring Cotton in Wheat-Cotton Double Cropping |
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| Abstract: |
| The results showed that:①According to its variability, the cotton boll quality charaters could be divided into 3 types. The first was composed of 4 characters including boll weight, seed index, fiber quality index and elongation,which were easily influenced by environmental conditions; the second type included strength, lint and Mik,which could be determined comprehensively by environmental factors and heredity features of variety; the last type covered elongation and uniformity.As to the boll hereditary characters of variety, the lowerhad similar characteristics with middle position, and the upper and top had another common characteristics, but the bollon upper and top positions was more sensitively influenced by climatic factors comparing to the lower and middle;②Based on correlation, cotton boll quality characters could be divided into 3 types: first, boll weight and Mik were of central criteria,including enlongation and uniformity; the second type was composed of length and fiber quality index; in the third,seed index and lint indexwere the central characters, then came length. |
| Key words: spring cotton in wheat cotton double cropping,cotton boll,quality character,correlation |
