Breeding a new cultivar through the traditional way need a long period, so it doesn't meet the stringent demand of production.
用传统育种方法培育新品种需要的周期过长，无法满足生产上的迫切需要。
It is laborious and slow to create a new cultivar with high-multi resistance and high yield and quality through conventional breeding methods from present germ-plasm.
通过常规育种手段从现有资源中选育出多抗、高抗、优质、高产品种难度大，耗时长。
It is important to replace cleft grafting and cutting grafting with belly grafting as a method of top working to correct chlorosis and improve growth of new cultivar.
用腹接取代劈接和切接作为果树高接更新品种的方法对于克服缺铁失绿症、促进更新品种生长具有重要意义。
Tree peony cultivars may be classified scientifically by a new system composed of five classes: color, type, form, group and cultivar.
按色、类、型、组和品种五个等级组成的牡丹品种分类系统，“色型兼备、科学实用”，有推广价值。
Indica rice Qianhui 15 is a new conventional cultivar bred from strain crosses of wild rice, indica rice and japonica rice.
将野生稻、中籼稻与云贵高原粳稻的后代选系进行杂交，选育出常规籼型稻新品种黔恢15。
Indica rice Qianhui 15 is a new conventional cultivar bred from strain crosses of wild rice, indica rice and japonica rice.
将野生稻、中籼稻与云贵高原粳稻的后代选系进行杂交，选育出常规籼型稻新品种黔恢15。
应用推荐