摘要
从１９９７年开始进行调查研究，结果表明，马铃薯种薯携带ＰＶＹＮ．延边地区从６月下旬开始发生ＰＶＹＮ，在靠近马铃薯田的烟地和未及时防治蚜虫的烟地发生较重，覆膜烟地比裸地栽培的烟地发病较轻．在供试的８个品种（系）中，ＮＣ８９品种发病较轻．
The experiment was started from 1997,the reult showed ,there was PVYN in patato seed. The generation of PVYN began at the last ten-day period of June. The disease was serious in tobacco field which near potato field and not preventing aphid in time,it was not serious in covering film than bare land.NC89 was better than others in disease.
出处
《延边大学农学学报》
1999年第1期3-7,共5页
Agricultural Science Journal of Yanbian University
关键词
烟草
马铃薯丫病毒病
发生规律
Tobacco
Disease of potato virus Y
Generation regular
