啤酒大麦种植密度对产量品质的影响

[目的]探究种植密度对啤酒大麦产量和品质的影响。[方法]以甘啤3号为供试品种，密度试验设9个处理，研究2002—2003年不同播种密度对4个试点啤酒大麦的产量、籽粒蛋白质含量和主要经济性状的影响，并进行产量方差分析和处理间的多重比较。[结果]在一定的种植密度范围内，啤酒大麦产量随密度的增加而提高，超过一定范围产量则随密度的增加而降低；籽粒蛋白质含量随播种量的增加而下降。千粒重也随之降低。产量以播量600万粒／hm^2的最高，产量折合7550．40kg／hm^2，籽粒蛋白质以播量150万彬hm^2的最高，为12．13％。[结论]根据产量和酿造品质综合分析认为，河西地区适宜的播种量应在450万-600万粒／hm^2（202．5—270．0kg／hm^2），玉门地区播种量应在525万-675万粒／hm^2（240．0～304．5kg／hm^2）。

Study on the Effect of Planting Density of Malting Barley on Its Yield and Quality

[Objective] The research aimed to investigate the effect of planting density on yield and quality of malting barley.[Method] With Ganpi 3 as tested variety,9 treatments were set up for density experiment to study the effects of different sowing density from 2002 to 2003 on the yield,grain protein content and main economic characters of malting barley in 4 test sites,and the yield variance analysis and the multiple comparisons between treatments were made.[Result] Within a certain planting density scope,the ...