高粱青霉颖枯病在我国华北、东北等地均有发生,特别是杂交高粱问世以来,已发展成为我国高粱的主要病害之一。1984—1987年作者对山西省高粱青霉颖枯病进行了病原、症状、侵染及防治等试验研究。该病从灌浆初期即开始显症。颖壳由绿色变为褐色或灰色。胚乳变灰变暗。颖壳与枝梗连接处组织逐渐变为红色或暗红色,并趋于坏死、干枯,影响养分、水分向上输送,使籽粒秕瘦变小,颖壳张开度减小,籽粒表面绉缩,色泽发暗,光滑度降低。导致千粒重、出粉率、发芽率、发芽势下降。蛋白质、氨基酸含量下降,单宁含量上升。发病后一般减产10%以上。 Penicillium sorbifolia is endemic to North China, Northeast China and other places, especially since the advent of hybrid sorghum has developed into one of the major diseases of sorghum in China. From 1984 to 1987, the author studied the pathogen, symptom, infection, prevention and cure of penicillium fumigatus in Shanxi province. The disease begins early symptoms of filling. Husk change from green to brown or gray. Endosperm gray to darken. The connection between the glume shell and the branches and stems gradually turned to red or dark red, and tended to necrosis and dryness, which affected nutrients and moisture to transport upward, which made the grains thin and thin, the width of the glume shell reduced, Darker, less smooth. Lead to 1000 grain weight, the rate of flour, germination rate, decreased germination potential. Protein, amino acid content decreased, tannin content increased. Generally reduce the incidence of more than 10%.