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君子兰软腐病是君子兰花卉最重要的一种病害。主要危害茎、叶。发病后轻者影响生长,失去观赏价值,重者全株毁灭。一、症状主要危害君子兰的茎、叶。茎部发病多从靠近土表的部分开始,产生暗绿色水渍状,不规则的病斑,很快茎组织变软腐烂,导致整株突然倒下(称之谓“抹脖”),严重时危及根部,使根全部烂掉。叶受侵多从叶茎部开始,发病初期,叶失去光亮,在叶的正、背面呈现暗绿色水渍状不规则的病斑,沿叶脉迅速向上发展,病部上、下表皮之间果胶质水解,导致病叶腐烂变软下垂。
Clivia soft rot is Clivia flowers the most important kind of disease. The main hazards stems and leaves. After the onset of light affect the growth, loss of ornamental value, heavy whole plant destruction. First, the symptoms of the main hazards Clivia stems and leaves. The incidence of stems from the part near the soil surface began to produce dark green water-like, irregular lesions, and soon soft stem rot tissue, resulting in a sudden fall of the whole plant (called the “wipe neck”), serious Endanger the roots, so that all the roots rot. More leaf invasion from the leaf stem beginning, the early onset, the leaves lighten the light, in the leaves of the positive and the back of the dark green water-like irregular spots, along the rapid development of the veins, the diseased part of the lower epidermis between fruit Colloidal hydrolysis, resulting in sick leaves decay soft sagging.