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[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/hm2。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/hm2,在2003年河南省玉米生产试验中的平均产量为7 195.50 kg/hm2,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/hm2。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/hm2。[结论]浚单22品质优良,适宜在黄淮海平原推广种植。
[Objective] The research aimed to provide a theoretical basis for the promotion and planting of Xundan 22. [Method] By comparing the growth and quality indexes of Xundan 22 and control maize varieties, the production potential and promotion value of Xundan 22 were discussed. [Result] The results showed that the summer sowing dates of Xundan 22 in Henan and Huang-Huai-Hai areas were 103 and 97 days respectively, the grain weight was 340 ~ 360 g, and the seed yield was 90%. The average yield of this variety in Junxian ratio test in 1998 and 1999 were respectively 8 760.00 and 10 170.00 kg / hm2. The average yield of this variety in Henan Province in 2000 was 8365.50 kg / hm2. The average yield of corn in Henan Province in 2003 was 7195.50 kg / hm2. In 2003, the high density group of summer maize in Hebei Province The average yield in the experiment was 9 046.95 kg / hm2. The starch content of the varieties were Yuyu 18, Xingkang 2 high 3.78% and 3.92%. The comprehensive disease resistance (pest) of the breed is better, and at the same fertility level, its suitable planting density is 52500 ~ 67500 plants / hm2. [Conclusion] Xundan 22 is of good quality and suitable for popularizing in Huang-Huai-Hai Plain.