不同香蕉品种根渗出物对南方根结线虫卵孵化的影响  

Effects of Root Exudation of Different Banana Varieties on the Egg Hatch of Meloidogyne incognita

作　　者：刘志明[1,2] 陆光艺[2] 黄金玲[1] 陆秀红[1] 秦碧霞[1] 刘纪霜 潘萍红[2] 李国栋[2] 乔丽娅[2] 黄秉智[4] 

机构地区：[1]广西壮族自治区农业科学院植物保护研究所,南宁530007 [2]广西大学农学院,南宁530005 [3]广西壮族自治区南宁市科技局,南宁530022 [4]广东省农业科学院果树研究所,广州510640

出　　处：《华中农业大学学报》2010年第5期564-566,共3页Journal of Huazhong Agricultural University

基　　金：国家自然科学基金项目(30660102);广西壮族自治区基金应用专项(桂科基0991017);广西壮族自治区基金项目(桂科基0575035)资助

摘　　要：通过抗病鉴定试验选取抗病香蕉品种海贡和感病香蕉品种威廉斯B6,并用2个香蕉品种的根渗出物分别处理南方根结线虫的卵,观察根渗出物对线虫卵孵化及幼虫致病力的影响。结果表明:接虫后抗病香蕉品种海贡根渗出物处理的卵总孵化率为63.26%,平均病情指数为22.13;感病香蕉品种威廉斯B6的总孵化率为80.29%,平均病情指数为53.35,2个香蕉品种的孵化率差异极显著。This trial selected two banana varieties：resistant Haigong and sensitive Williams B6 by resistant identify test,and utilized their root exudation to deal with the eggs of south root knot nematode（Meloidogyne incognita）to study the effects of the exudation on the pests＇ egg hatch and their larva＇s pathogenicity.The results showed as follows：after inoculation,the total hatching rate of south root knot nematode with the processing of Haigong root exudation was 63.26% and the average disease index of Haigong was 22.13,while as for Williams B6,the two indexes were 80.29% and 53.35.Their differences between the two varieties were significantly different.

关 键 词：香蕉 根渗出物 南方根结线虫 卵孵化 

分 类 号：S432.45[农业科学—植物病理学]