摘要
【目的】分析棉铃及纤维发育特点,探明气象因子对纤维品质的影响,从而确定南疆主产棉区优质棉最适宜的播种期,为新疆高产棉花品质保优技术的构建提供科学依据。【方法】试验以中棉所35号为供试材料,设置三个播期(4月5日、4月20日和5月5日),研究不同播期对棉铃生长发育与棉纤维品质形成的影响。【结果】4月20日播种,光温条件良好,棉铃分布合理,个体和群体长势良好,纤维总体品质优于其它两个播期。【结论】决定纤维长度的主要气象因子为≥15℃有效积温。纤维强度与日均温关系最密切,它们之间呈负相关。影响马克隆值的最重要气象因子是日照时数。
[ Objective ] This test was completed in the eotton region of South Xinjiang to analyse the eharaeteristies of development of eotton boll and fiber, influenee of elimate factor on fibre quality. [Method]The three sowing - seasons （ April 5, April 20 and May 5 ） were set up to research the influence of different sowing seasons on growth and development of cotton boll and quality of cotton fibre. [ Result] The result shows that when the sowing season was set up on Apr. 20, there were suitable light and temperature, reasonable distribution of eotton bolls, individuals and groups of cotton plant were growing well and overall quality is superior to the fibers of other two sowing seasons. [ Conclusion] It was determined that the main meteorological factors were ≥ 15℃, which influenced the length of cotton fibre. There were significant relations between fibre intensity and daily mean temperature,they were positively related to each other.
出处
《新疆农业科学》
CAS
CSCD
北大核心
2010年第4期668-672,共5页
Xinjiang Agricultural Sciences
基金
国家"十一五"科技支撑计划项目(2006BADB02-1)
新疆维吾尔自治区科技攻关重大专项(200731133-1)
公益性行业(农业)科研专项(3-5-22)
关键词
播期
棉铃
时空分布
纤维品质
sowing date
eotton bolls
spatiotenporal distribution
fibre quality
