水稻纹枯病始发期和病情关键影响因子研究

Study on Beginning Date and Disease Key Influencing Factors of Rice Sheath Blight

为明确黑龙江省水稻纹枯病的始发期和病情扩展蔓延关键影响因子,利用4 a的纹枯病病情田间调查数据和气象数据,确定水稻孕穗期是纹枯病的始发期,使用SPSS软件分析结果表明,夜间大气温度是影响黑龙江省纹枯病病情的关键因子。

In order to clarify the beginning date of rice sheath blight and the key influencing factors of disease expansion and spread in Heilongjiang Province,the field survey data and meteorological data of rice sheath blight in four years were used.The results of SPSS software analysis showed that the booting stage of rice was the beginning date of rice sheath blight,and the night atmospheric temperature was the key factor affecting the disease of rice sheath blight in Heilongjiang Province.