开花期和果枝部位对短季棉纤维品质及超分子结构的影响

 利用中棉所 16研究了开花期和果枝部位对棉纤维品质与棉纤维超分子结构各项参数动态变化的影响。研究表明 ,棉纤维长度、细度、成熟度及棉纤维强度等品质性状均随开花期推迟温度降低逐渐变差 ,相同开花期条件下果枝部位对棉纤维品质性状有一定影响 ,呈现出下部棉纤维品质略高于上部的趋势 ,但不显著。前期开花较早温度较高时下部果枝的超分子结构参数呈现出优于上部的趋势 ,与下部果枝的棉纤维品质略高于上部相一致 ,但果枝部位的影响并不能改变由于开花期推迟温度降低而对棉纤维超分子结构所产生的影响。

Effect of Anthesis Date and Fruiting Branches on Cotton Fiber Qualities and Super-molecular Structure

This article presented the effect of anthesis date and fruiting branches on the dynamic changes of cotton fiber qualities and super molecular structure. Fiber qualities, such as cotton fiber length, micronair, mutation and fiber strength, became poor with anthesis date postponing and temperature decreasing. At the same anthesis date positions of fruiting branches affected the fiber qualities. The fiber qualities of low portion turned out to be better than that of the upper portion, which was not significant. The super molecular structure of low portion turned out to be superior to that of upper portion at earlier anthesis date and higher temperature, which is in accordance with what was mentioned above, but the effect of fruiting branches could not changes the effect of anthesis date on super molecular structure.