北疆棉纤维品质气候生态位适宜度研究

 以北疆高产棉花纤维品质形成为研究对象，引入生态位适宜度理论对与棉纤维品质形成发育相关的7个生态因子进行生态位适宜度测算，对比实际收获棉纤维品质的灰色关联度分析，结果表明，北疆高产田棉纤维生态位适宜度值第3~6果枝较高，第1～2、第7～8、第9～10果枝相继下降。影响棉纤维发育的生态因子的生态位适宜度值（F_i）与棉花纤维品质之间存在极显著的线性相关关系，不同果枝节位棉纤维品质的生态位适宜度值对棉花纤维品质具有较好的预测性，生态位适宜度分析法可以作为指导棉花生长调控、建立高产高效棉花群体的重要依据。

Study on Climate Niche-fitness Value of Cotton Fiber Quality in Northern Xin-jiang

Taking cotton fiber quality formination from high yield cotton field in Northern Xinjiang as the study object, the niche-fitness values based on seven ecological factors that correlate with cotton fiber development were calculated, the results showed that the niche-fitness values of cotton fiber from 3rd to 6th fruit nodes were high, the values of 1st to 2nd, 7th to 8th, and 9th to 10th declined successively. Compared to the grey system theory values of actual cotton fiber of different fruit nodes, the results proved that niche fitness values had significantly linear response to fiber quality. Therefore, the niche fitness values of different fruit nodes can predict it's cotton fiber quality well, and niche-fitness value method can be u-ed as a tool to regulate and establish cotton canopy of high yield and efficiency.