5种植物提取液对石榴枯萎病菌不同生长期的室内毒力研究  

Effect of Five Kinds Plant Extracts on Pomegranate Wilt Disease Fungus Different Period of Growth Inhibitory Activity

作　　者：周银丽[1] 胡先奇[2] 王卫疆[1] 马永波[1] 薛春丽[1] 

机构地区：[1]云南红河学院农学系,云南蒙自661100 [2]云南农业大学云南省植物病理重点实验室,昆明650201

出　　处：《中国农学通报》2009年第23期392-394,共3页Chinese Agricultural Science Bulletin

基　　金：云南省教育厅科研基金(5002891);红河学院校长基金

摘　　要：石榴枯萎病在云南蒙自发生较为严重,以石榴枯萎病菌为供试菌种,用生长速率法测定了5种植物的乙醇提取液对病菌不同生长期的抑菌效果,结果表明5种植物提取液对石榴枯萎病菌均有一定的抑制作用,在病菌的适应期:苦参、黄连、细辛、板蓝根、芦荟的抑菌率分别为93.33%,97.78%,71.11%,64.44%,66.67%,以苦参的抑菌效果最佳。在病菌的生长旺盛期:黄连、苦参、细辛、板蓝根和芦荟的抑菌率分别为90.12%,86.63%,79.65%,68.03%,64.54%,抑菌效果最佳的植物是黄连。研究发现天然植物提取液中存在抑制石榴枯萎病菌的活性物质,这为石榴枯萎病的生防提供了新的思路和途径。In this paper, Sophora flavescens ait, Coptis chinosis franeh, Asarum, Radix isatid, Aloe carried out on toxicity measurement tbr the Ceratocystis fimbriata. The results showed that five kinds of plants had inhibi- tion to it, and it＇s bacteriostasis rate was 93.33%, 97.78%, 71.11%, 64.44%, 66.67% in growth adaptation peri- od, the best bacteriostatic effect plant Was Sophoraflavescens ait; In the strong period of growth, the bacteriosta- sis rate was 90.12%, 86.63%, 79.65%, 68.03%, 64.54%, the best bacteriostatic effect plant was Coptis chinosis franeh. This study found natural plant extract contain some active substances which can inhibition the pome- granate wilt disease fungus, this do provide a new way and method for the biological control of pomegranate wilt disease.

关 键 词：植物源农药 甘薯长喙壳 抑菌率 

分 类 号：S432.44[农业科学—植物病理学]