病抉特征普通矮缩病病株显著矮缩、叶色浓绿、分蘖明显增多,叶片僵硬,叶片和叶鞘上有白色条点,大多不能抽穗结实。黄矮病病株最初由顶叶或其下一叶的叶尖现淡黄色碎绿斑块,不久向叶片中、下部扩展,形成叶肉发黄、叶脉仍为绿色、黄绿相间的条状花叶。黄色病叶因品种不同,有淡黄、金黄、深黄和桔黄等,以后叶片平展,叶缘纵卷枯黄,病株矮缩不明 Sickness characteristics General dwarf disease plant significantly dwarfed, dark green leaves, significantly increased tillering, stiff leaves, leaves and leaf sheaths have white stripe points, most of them can not be heading strong. Yellow dwarf disease initially by the parietal or the next leaf tip pale yellow crushed green patches, soon to the middle and lower leaves to expand, the formation of yellow leaves, vein is still green, yellow-green and white strip flowers leaf. Yellow leaves due to different varieties, there are yellow, golden, dark yellow and orange, after the leaves flat, curled vertical leaf margin, diseased dwarf unknown