关键词: 水稻鞘腐病, 气象因子, 通径分析, 寒地水稻

Abstract: In order to define the main meteorological factors affecting the occurrence of rice sheath rot in Heilongjiang Province, the authors investigated the occurrence of rice sheath rot from 2007 to 2016 by the point-survey way, and collected the meteorological factors and disease index during rice sheath rot occurrence period. By means of path analysis, the meteorological factors and the disease index of rice sheath rot were studied. The results showed that the average temperature in August was the most influential meteorological factor to rice sheath rot, followed by the average rainfall in August and the average sunshine hours in September. The test results lay a foundation for the proper control of rice sheath rot disease.

Key words: rice sheath rot, meteorological factors, path analysis, rice in cold region