不同类型青贮玉米品种产量分析

Analysis on the Yield of Silage Maize Hybrid of Different Types

【目的】以自育及引进的单秆和分蘖两种类型16个青贮玉米品种(组合)为材料,分析不同类型青贮玉米品种的产量差异。【方法】采取随机区组设计,利用DPS统计分析软件,对不同类型青贮玉米品种产量进行方差分析和差异显著性分析。【结果】不同类型青贮玉米品种之间产量差异达极显著水平,青贮玉米产量单秆型显著高于分蘖型。增产潜力较大的品种为RD2、CD15和XQ5,平均产量为5 541.02、5 472.13和5 454.35 kg/667 m2,分别比对照新饲玉1号(5 143.22 kg/667 m2)增产7.73%,6.39%和6.05%。【结论】在选育高产青贮玉米新品种时,应重点选择直立性好的单秆型青贮玉米,不仅可获得较高的生物产量,而且有利于机械化收获。

[Objective and Method]Yield of 16 silage maize hybrids which were developed and introduced were analyzed by DPS software with randomly designing. [ Result] The results indicated as followed： There was extremely significant difference of yield among different types of silage maize hybrid. Yield of silage maize with single stalk is much higher than that of silage maize with tillers significantly. The hybrids of RD2, CD15 and XQ5 with single stalk performed better than others and gained the yield of 5 541.02 kg/667 m^2 ,5 472.13 kg/667 m^2 and 5 454.35 kg/667 m^2 7.73% ,6.39% and 6.05%. [ Conclusion] Research result indicated that it is important to select well - stand silage maize hybrid with single stalk, not only for good yield but also for harvest with machine.