高产·优质·紧凑型玉米杂交种浚单22述评

目的]为浚单22的推广种植提供理论依据。方法]通过比较浚单22和对照玉米品种的生长和品质指标,探讨了浚单22的生产潜力和推广价值。结果]浚单22在河南省和黄淮海地区的夏播生育期分别为103和97 d,千粒重为340-360 g,出籽率为90%。该品种在1998和1999年的浚县品比试验中的平均产量分别为8 760.00和10 170.00 kg/hm^2。该品种在2000年河南省玉米预备试验中的平均产量为8 365.50 kg/hm^2,在2003年河南省玉米生产试验中的平均产量为7 195.50 kg/hm^2,在2003年河北省高密组夏玉米区域试验中的平均产量为9 046.95 kg/hm^2。该品种的淀粉含量分别比豫玉18、邢抗2号高3.78%和3.92%。该品种的综合抗病（虫）性较好,在同等肥力水平下,其适宜种植密度为5.25万-6.75万株/hm^2。结论]浚单22品质优良,适宜在黄淮海平原推广种植。

Review of A High Yield and Good Quality Compact Corn Hybrid-Jundan 22

Objective]The purpose was to supply theoretical basis for the popularization and cultivation of Jundan 22.Method]Through comparing the growth and quality indexes of Jundan 22 and control corn varieties,the production potential and popularization value of Jundan 22 were discussed.Result]The growth periods,1 000-seed weight and seed-production rate of Jundan 22 sowed in summer in Henan Province and Huanghuaihai area were 103 and 97 d,340-360 g and 90% resp.In the variety-comparison test performed in Junxia...