摘要
探明种植密度对青贮玉米杂交种品质的影响对于合理选用优良的青贮玉米杂交种,改善青贮玉米品质具有重要意义。笔者采用随机区组设计,研究了种植密度对青贮玉米杂交种雅玉8号、奥玉5102、中北410、农大108和辽625营养品质的影响。结果表明:1)雅玉8、奥玉5102、中北410、农大108和辽625的青贮品质存在显著差异。农大108、辽625和中北410的青贮品质良好,奥玉5102的青贮品质一般,而雅玉8的青贮品质差。2)种植密度对粗蛋白和ADF含量没有显著影响,但对NDF含量影响较大,较高的种植密度可以增加NDF的含量,导致品质下降。3)种植密度对青贮玉米品质的影响与品种有关,与品种存在互作。4)中北410具有产量高、持绿性好、抗倒伏、抗病性强等优点,是一个丰产性好、适应性强、品质优良的青贮玉米杂交种,适合大面积推广。
It is important to study the effect of planting density on qualities of silage corn hybrids in order to improve the quality of silage corn. The randomized blocks design was used to study the effect of planting density on qualities of silage corn hybrids YaYu8, AoYu5102, ZhongBei410, Noda108 and Liao 625. The results indicated. I） There were significant differences among varieties in forage qualities. Nodal08 ,Liao 625 and ZhongBei410＇s forage qualities were much better than YaYu8 and AoYu5102＇s. 2） The crude protein and ADF contents were not affected by the planting densities, and the NDF content was affected by the planting densities largely. Higher planting density tended to increase the NDF content and decrease the forage quality. 3） The interaction on forage quality were existed between variety and planting-density. 4） ZhongBei410 showed higher forage yield, better adaptability and forage quality.
出处
《北京农学院学报》
2007年第2期10-12,共3页
Journal of Beijing University of Agriculture
基金
农业育种基础研究创新平台资助项目
