环境因子对黑龙江省水稻品种抗纹枯病的影响

The Influence of Rice Varieties of Resistance to Rice Sheath Blight from Environmental Facters in Heilongjiang Province

从氮肥施用量、不同地区病菌致病力、同一地区品种发病率等角度明确了环境因子对水稻品种抗纹枯病的影响,明确了氮肥施用量与纹枯病发生程度的关系、不同地区间病菌致病力的差异以及同一地区品种间发病率的差异,为解决生产问题提供借鉴。

The article analysised the influence of environmental facters from three aspects： the employ amounts of nitrogen feitilizer,the disease power of rice sheath blight from different regions,the morbidity of rice sheath blight of rice varieties from same region.The results telled us three contents： the relation of employ amounts of nitrogen feitilizer and extend of rice sheath blight,the discrepancy of the disease power of rice sheath blight from diffenent regions、the discrepancy of the morbidity of rice sheath blight of rice varieties from same region.The results offered information for resolve the production questions.