新疆不同棉花品种纤维品质变化及与气象因子关系的研究

选用不同类型棉花品种,采用分期播种的方法,研究不同气候条件下棉纤维品质变化及与气象因子的关系.结果表明:纤维各品质指标受控因子不同,长度、整齐度和伸长率主要受品种遗传特性的影响,纤维比强度和马克隆值除受品种遗传特性影响外还明显受到气候因子的影响.就影响品质的气象因子而言,不同纤维性状主要受控生态因子是不同的,纤维长度和伸长率主要受制于铃期总日照时数;整齐度、比强度主要受制于铃期≥15℃活动积温;马克隆值主要受铃期最高温度的影响.

Studies on Changes of Fiber Quality of Different Cotton Varieties and Correlation with Meteorological Factor in Xinjiang

Based on the experiment with 4 different types of cotton varieties and 3 sowing-date, the changes of fiber quality under different meteorological conditions and correlation with meteorological factor were studied .The result showed that the different fiber quality characters have the different controlled factors. Fiber length, fiber uniformity and fiber elongation rate were mostly influenced by the hereditary trait of variety. Fiber strength and micron were effected not only by the hereditary trait of variety but also effected remarkably by meteorological factors. As far as the meteorological factors are concerned, the main meteorological factors which effected the different fiber quality characters are not same. Fiber length and fiber elongation rate were affected mainly by the total sunshine time of cotton boll stage. Fiber uniformity and fiber strength is affected mainly by activity accumulated temperature (≥15℃) of cotton boll stage. Macron was significantly influenced by the highest temperature of cotton boll stage.