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Position: Home > Articles > VERIFICATION OF AN EQUATION FOR PREDICTING RICE TRANSITORY YELLOWING AND RICE DWARF DISEASES Acta Phytopathologica Sinica 1985 (1)

晚稻矮缩病和暂黄病预测模式的验证

作  者:
陈声祥
单  位:
晚稻两矮病预测模式验证协作组
摘  要:
本文叙述了晚稻矮缩病和暂黄(黄矮)病预测模式(Y=(n·d·p·t)/x)的验证方法及结果。预测模式经6个单位在浙、皖两省6个不同病区进行联合试验结果,证明它能在发病株率为0~33.74%的不同发病条件下比较准确地预测双季晚稻矮缩病和暂黄病的发病程度,并说明第二代黑尾叶蝉(Nepho-tettix cincticeps)带毒率的及时检测是该模式能付之实用的一个技术关键。
译  名:
VERIFICATION OF AN EQUATION FOR PREDICTING RICE TRANSITORY YELLOWING AND RICE DWARF DISEASES
作  者:
Chen Shengxiang (Institute of Plant Protection,Zhejiang Academy of Agricultural Sciences,Hangzhou)
摘  要:
The rice transitory yellowing and rice dwarf are two importantvirus diseases of rice in South China.An equation for the predictionof transitory yellowing and dwarf diseases was verified by re-sults from cooperative research in 6 different disease-prone areases ofZhejiang and Anhui provinces during 1978-1980.The percentages of di-seased plants calculated with this equation from the experimental resultsin 12 years all approximated to those observed in the late rice fields.It shows that this equation was able to predict fairly accurately bothdiseases when their incidences were within the range of 0~33.74% inlate rice fields.Simultaneously,it was also indicated that the detec-tion of viruliferous rate of vector insects is a key technique for forec-casting the incidence of these diseases.

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