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根据对啤酒用二棱皮大麦数量性状遗传的初步分析认为以“穗重型”为好。运用多元回归、偏相关和复相关以及通径分析。研究啤酒用二棱皮大麦主穗穗粒结构和产量结构各数量性状中的自变数x_j对y的影响,并分析了偏回归系数假设性测验,对通径系数高的自变数作逐步回归分析选留的。并建立了简化的一元回归方程式:y_1=2.5817+0.1958x_2和y_2=32.5770+19.5275x_2,y_2式中如果主穗粒数每穗增加一粒时,则籽粒产量每亩增产5.17％。今后选育啤酒用二棱皮大麦新品种时,应以“穗重型”为主攻方向,增加主穗粒数。目前国内外啤酒酿造业主要以二棱皮大麦为主要原料。它具为酿造啤酒的优良品质壳薄、色黄具有光泽、籽粒饱满、大小均匀一致、千粒重要求在40克以上,蛋白质含量10～12％。根据苏尔尼(Thorne1965)和Biscot Etal(1977)研究:大麦穗结构本身的光合作用形成的产量约占一半(45％左右),大麦穗结构对产量贡献如此之大,这是因为具有长芒、而芒的光合作用占整个穗的80％。可见,研究啤酒用二棱皮大麦主穗结构和产量结构可提高大麦新品种的选育效果。啤酒用二棱皮大麦的产量与其它作物一样,是由以单位面积内的有效穗数、穗粒数和籽粒的大小三个因素构成的。麦类作物品种又分穗重型,穗数型和中间型,类型间的形态是不同的,如何选择啤酒用二棱皮大麦,什么是理想的穗粒结构和产量结构,是当前大麦新品种选育面临的一个重要课题。
Based on the preliminary analysis of the inheritance of quantitative traits in barley with two-sided barley, it is considered that “spike weight” is better. Using multiple regression, partial correlation and complex correlation and path analysis. To study the effect of the independent variable x_j on the grain structure and the quantitative structure of the main structure of two-sided barley in beer, and to analyze the partial regression hypothesis test and the stepwise regression analysis of the independent variable with high path coefficient Selected to stay. And a simplified one-dimensional regression equation was established: y_1 = 2.5817 + 0.1958x_2 and y_2 = 32.5770 + 19.5275x_2, y_2 where grain yield increased by 5.17% per acre if the number of main spike grains per grain was increased by one grain. Breeding future beer with two new varieties of barley bark, should be “spike heavy” as the main direction to increase the main grain number. At present, beer brewing industry at home and abroad mainly Erbianpi barley as the main raw material. It has the fine quality of beer brewing shell thin, yellow and shiny, full grain, uniform size, 1000 grain weight requirements in more than 40 grams, the protein content of 10 to 12%. According to studies by Thorne (1965) and Biscot Etal (1977), photosynthesis of the barley ear itself accounts for about half (45%) of the photosynthesis production and the ear structure of barley contributes so much to the yield, , While Mount’s photosynthesis accounts for 80% of the entire ear. It can be seen that the main structure and yield structure of barley with two-sided barley can improve the breeding effect of new varieties of barley. The yield of beer with two-sided barley is the same as that of other crops. It is composed of three factors: the effective spike per unit area, the number of grains per spike and the size of the grain. The varieties of wheat crop is divided into panicle type, panicle type and intermediate type. The morphology of the two types of barley is different. How to select barley with two-sided barley and what is the ideal grain structure and yield structure is the new variety Education is an important issue facing.