江苏省水稻“小穗头”发生原因和防治技术研究  

The small grains and erect panicle of rice caused by nematode and control the disease in Jiangsu Province

作　　者：汪智渊[1] 杨红福[1] 吉沐祥[1] 

机构地区：[1]江苏丘陵地区镇江农业科学研究所,江苏句容212400

出　　处：《南京农业大学学报》2006年第1期54-56,共3页Journal of Nanjing Agricultural University

摘　　要：近年来，江苏省大面积、多品种水稻普遍发生“小穗头”症状。经室内检测，发现“小穗头”谷粒中含有大量的线虫，而健康稻穗的谷粒中不含线虫。鉴定结果表明：水稻“小穗头”中含有的线虫为水稻干尖线虫（Aphelenchoides besseyi）。“小穗头”症状是水稻干尖线虫病的一种非典型症状。田间试验表明，应用巴丹、恶线清（16％咪鲜·杀螟）等杀干尖线虫药剂在水稻播种前浸种48-60h，可有效防治水稻“小穗头”症状发生，其防治效果可达90％以上。Recent years, small grains and erect panicle occurred in many rice varieties on a large scale in Jiangsu Province. Lots of nematodes were found in rice with small grains and erect panicle but there was no nematode in normal grain seeds. The critical result showed that it might be conspecific with Aphelenchoides besseyl. The small grains and erect panicle was a non-typical symptom of rice white tip nematode disease. Field experiments indicated that the application of nematicides, such as cartap and 16% prochloraz cartap, to immerse seeds for 48 -60 h before sowing was adequate to control the rice white tip nematode disease. The control effect might be more than 90%.

关 键 词：“小穗头”症状 水稻干尖线虫 巴丹 

分 类 号：S432.45[农业科学—植物病理学]