Biological Characteristics of Fusarium oxysporum f. sp.niveum Isolated from Watermelon Cultivated in Plastic Greenhouse and Indoor Toxicity Determination of Different Fungicides in Hainan Province of China

查看全文 作　　者：Fan [1,2]Hongyan;Zhou [1,2]Wenjing;Wang [1,2]Xianghe;Luo [1,2]Zhiwen;He [1,2]Fan

机构地区：[1]Institute of Tropical Fruit Tree,Hainan Academy of Agricultural Science;[2]Haikou Investigation Station of Tropical Fruit Trees,Ministry of Agriculture

出　　处：《Plant Diseases and Pests》索引2013年第4卷第5期,共6页

基　　金：Supported by Epidemic Monitoring and Control Program of Pests and Diseasesin Tropical Crops in 2013 by Ministry of Agriculture(Issued Document Number:NBK[2013]No.28) 摘　　要：[Objective]The paper was to study biological characteristics of Fusarium oxysporum f.sp.niveum in watermelon cultivated in plastic greenhouse in Hainan Province of China and to determine indoor toxicity of fungicides.[Method]Effects of various factors on mycelial growth and spore germination were studied,and the lethal temperature of spores and indoor toxicity of fungicides were also determined.[Result]The fungal mycelium had a better growth rate on watermelon juice medium than the others.The optimum temperature for mycelial growth and spore germination were 28℃and 30℃,and the optimum pH values were7-8 and 7-9,respectively.Light-dark alternation was conducive for mycelial growth.The lethal temperature of spore was 60℃for 5 min.The fungal mycelium grew better while taking fructose and glucose as carbon sources and yeast extract and peptone as nitrogen sources.Toxicity determination showed that 50%prochloraz-manganese chloride complex WP had the greatest inhibition effect on mycelial growth,with the EC50value of 0.730 9μg/mL;followed by 32.5%benzoic azoxystrobin SC,30%benzoylate·propiconazol EC,10%difenoconazole WG,25%bromothalonil·carbendazim WP and 25%bromothalonil WP,with the EC50values from 1.884 7μg/mL to 8.161 0μg/mL.[Conclusion]The study provided basic data for field control against F.oxysporum f.sp.niveum on watermelon cultivated in plastic greenhouse in Hainan Province. 关键词：室内毒力测定生物学特性塑料大棚西瓜汁海南省杀菌剂 SP 多菌灵可湿性粉剂

相关文献

参考文献（12）
引证文献（2）
耦合文献（64）

参考文献(12)

引证文献(2)

耦合文献(64)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Biological Characteristics of Fusarium oxysporum f. sp.niveum Isolated from Watermelon Cultivated in Plastic Greenhouse and Indoor Toxicity Determination of Different Fungicides in Hainan Province of China

参考文献(12)

引证文献(2)

耦合文献(64)

用户提示