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目前,椪柑广泛用枳作砧,树体矮化,早结丰产,便于管理,但出现黄化现象。据观察,在幼树定植后的2～4年中黄化树尤多。一般先从下部老叶开始,发展到全株黄化。叶片则从主脉开始,至全叶黄化。年周期中在夏秋季开始黄化,晚秋及冬季严重。叶黄后全部落光,翌年能抽出少量春梢或早夏梢,梢弱不充实,秋后又黄化,如此反复,难以正常结果。尚有极少植株结果后自然恢复正常。管理水平高黄化植株少,反之则多。
At present, Citrus aurantium widely used as anvil, tree dwarf, early high yield, easy to manage, but the phenomenon of yellowing. It is observed that in the sapling 2 to 4 years after the yellowing tree is more. Generally start from the lower part of the old leaf, the development of whole plant yellow. The leaves start from the main vein, to the whole leaf yellowing. The annual cycle begins to yellow in summer and autumn, and is severe in late autumn and winter. After the fall of yellow all the light, the following year can draw a small amount of spring or early summer shoot, shoot weak weak, autumn and yellow, so repeated, difficult to normal results. There are few natural results after the return to normal. High levels of management of plant less yellow, and vice versa.