水稻品种生期的研究——Ⅱ. 水稻品种发育速度及生育期预测

• 作 者: 余铁桥 邹应斌
• 机 构: 湖南农学院水稻生态生理研究室,湖南农学院水稻生态生理研究室
• 出 处: 湖南农学院学报
• 发表日期: 1983年04期
• 关键词: 生育期预测 发育速度 齐穗 生育期间 气象指标 非线性关系 品种生育期 回归方程 温度日较差 珍珠矮

本文分析和讨论了水稻品种发育速度与其生育期间的温度和日长条件的关系。指出由于品种生态特性的不同,其表现为与温度的线性或非线性关系,或表现为与温度和日长的二元线性关系。水稻品种的齐穗日数与其生育期间的温度日较差密切相关,可以作为品种生育期预测的气象指标。另外,还计算了各类品种生育期预测的复回归方程。

This paper analyzes and discusses the relationship between the developmental rate of rice varieties and their temperature and growing conditions during their growing period. It is pointed out that due to the difference of the ecological characteristics of the cultivars, the linear or non-linear relationship with the temperature or the binary linear relationship with the temperature and the long-term are presented. The heading date of rice cultivars is closely related to the poor temperature day during their growing period, which can be used as the meteorological index for predicting the growth period of rice varieties. In addition, the complex regression equation of growth forecast of various varieties was also calculated.