气象因子对湖南省棉花经济性状影响的研究 |
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作者姓名: | 王朝晖 钟林光 李景龙 |
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作者单位: | 常德职业技术学院,湖南常德 415000,湖南省棉花科学研究所,湖南常德 415000 |
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基金项目: | 农业部优质棉花基地科技服务项目
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湖南省常德市科技项目 |
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摘 要: | 为探索棉花主要经济性状与气象因子之间的量化关系,采用灰色系统和逐步回归法研究了温度、光照时数、空气湿度、降水量对棉花经济性状的影响。结果表明,在湖南气候条件与栽培技术体系下,光照时间、温度与单铃重、籽指关联系数大,与衣分、衣指关联系数小;而降水量、湿度与单铃重、籽指关联系数小,与衣分、衣指关联系数大;温度、光照时间对单铃重、籽指起正作用,降水量在较少的情况下对单铃重起正作用,但超过一定界限后,反而起负作用。降水量对衣分、衣指起正作用。
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关 键 词: | 气象因子 棉花 经济性状 气象因子 湖南省 棉花经济性状 影响 研究 Hunan Province Cotton Economic Properties Meteorological Factors Effects 负作用 定界 情况 正作用 空气湿度 衣分 关联系数 单铃重 光照时间 栽培技术体系 |
Studies on the Effects of Main Meteorological Factors on Economic Properties of Cotton in Hunan Province |
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Authors: | Wang Zhaohui Zhong Linguang Li Jinglong |
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Institution: | College of Changde Vocational Technical, Changde, Hunan 415000; Hunan Cotton Research Institute, Changde, Hunan 4l5l0l |
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Abstract: | By using the interpretative methods of grey systematic theory and the gradual regression analysis, the relationship between 4 meteorological factors and the main economic properties of cotton were investigated. The results showed: The variation coefficient of illumination hour and temperature to single boll weight and seed index is bigger than that of lint percentage and lint index under the condition of special ecosystem and cultivation in Hunan Province. Temperature and illumination hour are positive to single boll weight and seed index. Rainfall is rarely positive to single boll weight. Rainfall is positive to lint percentage and lint index. |
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Keywords: | meteorological factorszz cottonzz economic propertieszz |
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