中国农业气象

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聊城棉花蕾铃期气候因素与株铃数的通径分析

孙培良;李秋芝;杨士恩;   

  1. 山东省气象科学研究所,聊城农科院,山东聊城市气象局 济南250031山东聊城市气象局
  • 出版日期:2007-08-10 发布日期:2007-08-10

Path Analysis of Climate Factors and Bolls Per Plant in Suqare-boll Stage of Cotton in Liaocheng

SUN Pei-liang1,2, LI Qiu-zhi3, YANG Shi-en2(1.Institule Meteorological Sciences of Shandong Province,Jinan 250031, China;2. Liaocheng Meteorological Bureau; 3.Liaocheng Academy of Agricultural Sciences)   

  • Online:2007-08-10 Published:2007-08-10

摘要: 以1990-2003年气象资料和棉花试验资料为依据,利用通径分析方法发现,聊城棉花蕾铃期对株铃数产生直接影响的主要气候因素依次是8月的日照时数、7月和8月的降水量及7月的平均气温;产生间接影响的主要因素依次有8月的日照时数、7月和6月的平均气温。因此,在当地棉花栽培管理中,应通过精细整枝、化调化控等措施适当改善蕾铃期棉田内光、温、水等小气候条件,以有效增加棉花株铃数。

关键词: 气候因素, 株铃数, 通径分析

Abstract: According to the path analysis, sunshine duration of August, precipitation of July and August, and mean temperature of July were the main climatic factors that influenced the bolls per plant of cotton directly in Liaocheng, while sunshine duration of August, average temperature of July and June were the indirect factors. It was favorable for increasing the bolls per plant of cotton to improve the microclimate such as sunshine, temperature and water appropriately by pruning and controlling chemically.

Key words: Climate factor, Climate factor, Bolls per plant, Path analysis