论文部分内容阅读
烟草中心花开放后第5~10d之间套袋自交种的产量高、千粒重大;羊皮纸袋、牛皮纸袋和报纸袋均可用于烟草套袋自交,使用寿命羊皮纸袋>牛皮纸袋>报纸袋,凡要求单株繁种量大的项目,应使用羊皮纸袋,牛皮纸袋和报纸袋只适用于单株繁种量少的繁种项目;套袋前用2.5%的溴氰菊酯2500倍喷雾防治烟草花序上的害虫,可以明显地减轻花序上的虫害,有利于提高自交种的产量和质量。
Tobacco center flowers after the opening of the first 5 ~ 10d bagging self-seeded high yield, one thousand grain; parchment bags, kraft paper bags and newspaper bags can be used for self-tobacco bagging, life parchment bags> kraft paper bags> newspaper bags , Where large quantities of individual plants require large projects, the use of parchment bags, kraft paper bags and newspaper bags should only be used for a variety of small items with less variety; bagging with 2.5% deltamethrin 2500 Times spray control pests on tobacco inflorescence, can significantly reduce the inflorescence pests, help to improve the yield and quality of selfing.