新疆陆地棉铃柄长与棉花产量及纤维品质的关系

摘要:【目的】为了解新疆棉花铃柄长与主要农艺性状、产量性状以及纤维品质之间的关联关系，【方法】通过两年比较试验，跟踪调查了棉花主栽品种（系）的主要农艺性状、产量性状以及纤维品质，总结了两年的主要气候数据，并将这些与铃柄长做了比较分析，【结果与结论】结果表明：棉花各品种的铃柄长与棉花主要生长阶段6-8月的最高平均气温呈负相关的关系；与平均最低气温和平均日照时数呈正相关；与有效果枝、单株铃、果枝始节和始节高度成正相关，与株高、无效果枝成负相关；与衣分、果枝数和折合亩产均呈正相关的关系，与单铃重呈负相关；与纤维的上半部平均长度、马克隆值呈正相关，与整齐度指数大致呈正相关，50%参试棉花品种（系）的铃柄长与纤维断裂比强度呈正相关的关系，剩余50%呈负相关的关系。

Gossypium hirsutum L. in Xinjiang: The Relationship Between Cotton Boll Stalk Length and Yield and Fiber Quality

To understand the relationship between cotton boll stalk length and the main agronomic traits, yield traits and fiber quality in Xinjiang, we conducted a comparative experiment for two years, investigated the main agronomic traits, yield traits and fiber quality of cotton varieties (lines), summarized the climatic data of the two years, and compared these with boll stalk length. The results showed that the cotton stalk length of different varieties had a negative correlation between the average maximum temperature in the main growth period of June-August, and a positive correlation with the average minimum temperature and average sunshine time. The boll stalk length had a positive correlation with the number of effective branches, the number of boll per plant, the first node and the height of the first node, but it had a negative correlation with plant height and invalid branch. The boll stalk length had a positive correlation with lint percentage, branch number and equivalent yield, but it had a negative correlation with single boll weight. The boll stalk length had a positive correlation with the average length of the top half fiber and micronaire, it also had a roughly positive correlation with the evenness index. The boll stalk length of 50% test materials had a positive correlation with the fiber breaking strength, and the other half showed negative correlation.