摘要
以3种棉纤维长度和衣分存在差异的农大HL1、农大HL2和新陆早49号棉花为试验材料,于花后10,20,30,40 d分别测定铃壳、棉籽和棉纤维中的可溶性蛋白含量和纤维长度,分析可溶性蛋白含量与纤维发育的相关性。结果表明,可溶性蛋白含量与棉纤维生长发育密切相关;在棉纤维伸长关键期,较低的可溶性蛋白含量利于棉纤维伸长发育,而较高的可溶性蛋白含量可促进次生壁加厚,利于棉花衣分的提高,进而提高棉花产量;在棉纤维发育进程中,棉铃各器官发育有着密切的联系,铃壳和棉籽中较强的生理代谢能力直接影响棉纤维的发育。
Nongda HL1, Nongda HL2 and Xinluzao 49 with different cotton fiber lengths and lint percent were used as test materials. To understand variation in physiologial activities of boll, the soluble protein content in the boll shell, cotton seed and cotton fiber, fiber length were determined in the 10, 20, 30, 40 d, respectively, and the correlation between soluble protein content and fiber development was analyzed. The results showed that the soluble protein content was closely related to the growth and development of cotton fiber. In the critical period of cotton fiber stretch, the lower soluble protein content was conducive to the elongation of cotton fiber, while the higher soluble protein content could promote the thickening of secondary cell wall, which was conducive to the improvement of lint percent and cotton yield. At the same time, there was a close relationship between the various organs of cotton boll. In the process of cotton fiber development, the strong physiological metabolic capacity of the boll shell and cotton seed directly affected the development of cotton fiber.
引文
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