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《Journal of Anhui Agricultural Sciences》 2002-05
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Screen of Chemical Fungicides Against Rice Bakanae Disease

Fang Jiquan (Station of Agricultural Extension,Qilin Town,Zongyang County 246734)  
To test inhibition effects of different fungicides against Fusarium moniliforme hyphal growth and conidiospore germination,toxicity determinations of single and mixed fungicides against rice bakanae disease had been done.The results showed:in single fungicide,the inhibitions of Sportak,Prochloraz and Scelartial were more significant than the rest. EC 50 inhibiting hyphal growth was 0.147 3 μg/ml,1.464 5 μg/ml and 9.244 5 μg/ml respectively.And in inhibition of conidiospore germination EC 50 was 0.984 2 μg/ml,3.757 4 μg/ml and 0.804 1 μg/ml respectively.With regard to mixed fungicides the effects of Sportak + Chlorothalonil and Prochloraz + Carbendazim were the best.EC 50 and CTC of inhibiting hyphal growth were 0.047 8,0.036 3 μg/ml and 615,7 893 respectively.For inhibiting conidiospore germination Sportak + chlorothalnil and Prochloraz + Seelartial were better,their EC 50 and CTC were 0.059 7,0.089 4 μg/ml and 3 253,1 482 respectively.
【CateGory Index】: S435.111.44
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