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Ⅰ、病原侵染全株,叶色黄化,叶形皱缩粗糙, 侧枝短细丛生 1.叶片黄化皱缩,质粗硬,细脉褐变,节间缩短纤细,腋芽早发,侧枝丛生……………………………………………………萎缩型萎缩病 2.叶侧脉呈淡绿色或黄绿色的斑点,成黄绿相间的花叶,叶缘卷缩,质粗,后叶脉呈现褐色针瘤状突起,腋芽萌发,侧枝短细………
Ⅰ, the pathogen infection of the whole plant, leaf color yellowing, leaf shrinkage rough, short branches tufts 1. Leaf yellow shrinkage, coarse-grained, vein pulse browning, internodes shortening slender, axillary buds early, collateral Cong Sheng ........................................................................ Atrophic atrophy 2. Leaf veins pale green or yellowish green spots, yellow-green and white mosaic leaf volume Shrinkage, quality coarse, posterior vein showed brown needle-like protrusions, axillary buds germination, collateral short sperm .........