陕7859是省粮作所于1978—82年用7576作母本,6811(2)作父本,杂交选育而成。一、增产效果 1982年用混系在本所鉴定圃试验结果,亩产798.2斤,比对照小偃6号亩产745.9斤增产7％;1983年本所品系产量试验,亩产826.7斤,比小偃6号亩产701.7斤增产17.8％,在长安、蒲城、富平等地小面积观察,丰产性、适应性较好;同年参加本所黄淮麦区南片新品系联合鉴定试验,亩产855.6斤,比小偃6号 Shaanxi 7859 is the provincial grain crop in 1978-82 with 7576 as the female parent, 6811 (2) as the male parent, cross breeding. First, the effect of increased production In 1982 mixed with the results of our identification garden test, per mu 798.2 kg, compared with the control Xiaoyan 6 per mu 745.9 kg increase of 7%; 1983 Department of the yield test system, per mu 826.7 kg, than Xiaoyan 6 701.7 kg per mu yield increase of 17.8%, in Chang’an, Pucheng, rich and small observation of the same area, high yield, good adaptability; the same year to participate in the Huanghuai wheat South New Line joint identification test, mu 855.6 pounds, 6 than Xiaoyan