麻疯树油对几种植物病原真菌的抑制活性

Virulences Measure of 17 Fungicides to Schisandra chinensis Leaf Blight

以植物病原真菌水稻稻瘟病菌、玉米纹枯病菌、玉米弯胞病菌、小麦赤霉菌、墨入霉菌、绿色木霉菌为供试菌,检测了麻疯树油的抗真菌活性。半抑制浓度（IC50）、最低抑制浓度（MIC）、最低杀菌浓度（MBC）值显示,麻疯树油对水稻稻瘟病菌的抑制作用最强,处理组菌丝生长量减少,孢子萌发受到抑制。

The virulences of 17 fungicides to the Alternaria tenuissima （Kunze） Wihshire were determined in laboratory. The results indicated that Procymidone 50% W.P. exhibited the best inhibitory effect on the growth of mycelium of A lternaria tenuissima which its EC50 values reached 0.510 1 mg·L-1. A maximum inhibition to conidia germination of Alternaria tenuissima by Polyoxin 10% W.P. was observed which its EC50 values reached 0.0205 mg·L-1.