Breeding Report on A New Maize Hybrid Wuke 1 with High Yield,Good Quality and Better-resistance

Wuke 1,a new maize hybrid,was accomplished using selfselection inbred line 457-1 as female parent and foreign inbred line Zhen 22 as male parent by Wuwei institute of agricultural sciences.In regional test of middle and late mature of new maize variety in Gansu province from 2003 to 2004,the average yield was 10 919.4 kg/hm2 and 11 464.5 kg/hm2 respectively and the rate of yield increase was 5.2% and 12.0% higher than that of the check zhongdan 2.The main characters of the variety were high and stable yield,good quality,better-resistance and was a stuff maize variety.