摘要
研究表明,黑龙港流域气象生态因子中,温度与降雨量是影响夏玉米穗粒数最主要的气象因素,尤其水热配合状况直接决定着穗粒数的多少。日平均气温与穗粒数呈正的对数关系,降雨量与穗粒数为负的幂函数关系,而水热比与穗粒数则呈正的线性关系。
This study showed that, among the ecoclimatical factors, temperature and the precipitation are the major factors affecting the grain number per ear. Especially the combination of water and heat determine the ear grain number. Daily mean temperature and the ear grain number is of positive logarithm relationship. Precipitation and grain number per ear is of negative power function relationship. The ratio of heat and water and grain number is of positive linear relationship.
出处
《河北农业科学》
2000年第3期23-27,共5页
Journal of Hebei Agricultural Sciences
