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利用多元分析法对 ４９ 个二棱型啤酒大麦育种材料的 ７ 个主要性状指标进行了主成份分析与聚类分析。主成份分析结果表明：第 １～６ 主成份依次为：穗粒重、穗粒数、穗长、千粒重、株高、芒长等诸因子。在育种中，按照此排序，应协调好与产量密切相关的第 １～４ 主成份之间的关系；为达到啤酒工业的要求应重视对千粒重这一指标的选择；另外，大麦极易倒伏，应特别注意矮杆后代的选择。聚类分析结果显示：将二棱型啤酒大麦分为以下 ４ 类：Ι类为千粒重高，植株高；Ⅱ类为穗长较短，其他穗部性状中等；Ⅲ类为穗短，穗粒数少，穗粒重和千粒重均低；Ⅳ类为分孽数多，穗较长，千粒重高。
The principal component analysis and cluster analysis of seven main characters of 49 two-row beer barley breeding materials were conducted by multivariate analysis. The results of principal component analysis showed that the main components of the first to the sixth were as follows: the weight of spike per panicle, the number of spike per panicle, the spike length, the weight of 1000-grain, the height of plant and the length of mantle. In breeding, according to this sort, the relationship between the first and the fourth main components closely related to the yield should be coordinated; in order to meet the requirements of beer industry, the choice of the index of 1000-grain weight should be emphasized; in addition, barley is prone to lodging, Special attention should be given to the choice of dwarf future generations. Cluster analysis showed that the two types of barley malting barley were classified into the following four categories: type I was one-thousand-grain weight high and plant height; type II was short spike length and other ear traits were moderate; type III was short spike and grain number per spike Less, grain weight per ear and grain weight are low; Ⅳ class for the number of sub-spikes, spike longer, one thousand high.