| In this experiment phonology, the development rule, fruits qualities of huangguang, shuanguang, yangguang, zaoyou118, zaohong2 and qiannianhong in lanzhou, tianshui, pinliang, and zhangye were determined, the different effect of artificial pollination, self-pollination and cross-pollination and the effect on development of application of pp333 were estimated and the control trials of nectarine etiolating disease with pruning and training after mature were also determined, The results showed that,1. With the increasing of latitude, the phonology is delayed indifferent area of Gansu, but the against-covered technology can make the phonology earlier in greenhouse of high latitude2. Several nectarine varieties were selected for greenhouse planting in Gansu after the analyzing of traits of developing and fruits qualities.3. Artificial pollination in greenhouse planting can increase fruit rate and improve fruit quality, the best method is appoint-pollination by using brush from 10:00 to 16:00.4. Application of pp333 can reduce new shoots growth and branch, efficiently control canopy in greenhouse, improve light intensity and increasing fruit rate.5. The development of new shoot, the thick of stem and the flowerage rate of branch can be improved through medicating control after pruning and training in mature. |