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选择浚单系列品种浚单18、浚单98-3、浚单20、浚单26玉米杂交种,以郑单958和农大108为对照,研究这4个品种后期子粒灌浆特性。结果表明,浚单系列品种的产量明显高于对照,穗粒数和百粒重对产量的贡献基本相同,浚单20、浚单26、浚单18、浚单98-3的子粒体积和灌浆速率均大于郑单958和农大108。选择高水肥地,加强生育后期的水肥管理,可充分发挥浚单系列玉米杂交种的增产潜力。
The Xunyi 18, Xundan 98-3, Xundan 20 and Xundan 26 maize hybrids were selected to study the grain-filling characteristics of these four varieties at the later stage. The results showed that the yield of Xundan series was obviously higher than that of the control. The contribution of grain yield and grain weight per 100 grains was basically the same. The grain volume and filling of Xundan 20, Xundan 26, Xundan 18 and Xundan 98-3 were basically the same, Rates are greater than Zhengdan 958 and Nongda 108. Select high water and fertilizer to strengthen the late fertilization and fertilization management, can give full play to Xundan series of corn hybrids yield potential.