水稻稻曲病随着每穗稻曲球数增加，穗粒数、粒重及千粒重下降，秕谷率上升，产量损失率增加。
The grains and grain weight decreased and the blasted rate and yield loss rate of rice increased with the increase of disease grains each ear.
防治稻曲病的药剂以瘟曲克星的防效最好； 防治适期足水稻孕穗末期至破口期；
Optimum control period of false smut is from the end of boot stage to the rupturing stage of rice.
结果表明，菌源、品种、气象条件及水稻生育期是稻曲病发生与否和发生轻重的主要因子。
The results show that the major factors affecting the occurrence of rice false smut are fungus resource, rice variety, weather condition and rice growth period.
根据稻曲病对水稻的为害特点，对不同病粒稻株与水稻产量损失的关系进行灰色关联度分析。
Based on the damage feature of flase smut to rice, the relationship between the plants with different infected grains and the losses of yield was analysed by using gray relational grade.
根据稻曲病对水稻的为害特点，对不同病粒稻株与水稻产量损失的关系进行灰色关联度分析。
Based on the damage feature of flase smut to rice, the relationship between the plants with different infected grains and the losses of yield was analysed by using gray relational grade.
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