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针对福建大麦品种白粉病重、影响大麦扩大种植和产量提高，选用抗白粉病和黄花叶病、耐湿性强、熟相好、品质优的四棱大麦“木石港３号”，与本省大面积种植的二棱大麦品种“莆大麦４号”杂交，育成了丰产性好，抗白粉病和赤霉病，品质优良的饲用型莆大麦５号新品种，在大麦抗白粉病育种上取得突破性进展。其主要经验是：正确制定育种目标，突出抗白粉病性和丰产性状，广泛开拓抗源，科学选配组合，创造发病条件，严格选择抗病单株，加代繁殖种子，加速示范和推广。
In view of Fujian barley varieties of powdery mildew, affecting barley expansion planting and yield increase, the selection of resistance to powdery mildew and yellow mosaic disease, moisture resistance, good phase, good quality of four barley “Mudang 3” and the province’s large-scale planting Bourgeon barley variety “PuBa 4”, bred new breed of high-yielding Po-barley variety No.5 with high yield, good resistance to powdery mildew and scab, and made a breakthrough in resistance to powdery mildew in barley progress. Its main experience is: Correctly formulating breeding objectives, highlighting resistance to powdery mildew and high yield traits, extensively exploring combinations of resistance and science, and creating disease conditions. Strict selection of disease-resistant single plants, multiplication of seeds and acceleration of demonstration and popularization will be made.