美国农业部认为,小麦叶面上的蜡被能提高水分利用率,能使小麦较好地度过中等干旱期。试验中,除叶面蜡被多少程度不同外,选择遗传相同的小麦进行比较后发现,在少量灌溉的小区上,有条纹状蜡被的小麦籽粒产量和 USDA believes that the wax on the wheat leaf surface can improve the water use efficiency, make wheat better through the medium drought period. In the experiment, in addition to the degree of foliage wax is different, select the same genetic comparison of wheat and found that in a small amount of irrigated plot, the streaky waxy wheat grain yield and