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1叶柄变白的主要原因近几年来,中国各地芹菜种植面积逐年增加,栽培方式也逐年增多,芹菜品种不断更新。新品种大多是品质优,叶柄浅绿色的,然而有些地区种植的芹菜不同程度出现一段时间叶柄由浅绿色变白,过一段时间又由白变浅绿色的情况。此种现象多发生在夏秋季节和初冬季节,其主要原因有以下
A petiole whitening the main reason In recent years, celery planting area in China increased year by year, cultivation methods also increased year by year, celery varieties constantly updated. Most of the new varieties of high quality, petiole light green, however, some areas planted celery to varying degrees for some time petioles from light green to white, over a period of time from white to light green situation. This phenomenon occurs in summer and autumn and early winter season, the main reason for the following