Influence of Abnormal Weather on Growth and Yield of Paddy Rice in Warmer Regions

[摘要] During July-August in 1980 air temperatures were lower and sunshine durations were less than those under the normal climate and heavy meteorological disasters were occured. Influences of the abnormal weather on growth and ripening of paddy rice were studied. 1. In 1980 dates of rice heading were delayed about 7 days compared with those in 1979 when the weather was normal, and it estimated that the delay was caused by low air temperatures. 2. In 1980 growth and ripening of rice were suppressed remarkably by the insufficient solar radiation. However, it was clear that the lower air temperatures had good effects on growth and ripening of paddy rice.

[学科分类] 农业科学（综合）