人参、西洋参根系活力的初步研究

Studies on the Root-activities of the Ginseng and the American Ginseng

测定了人参、西洋参不同生育期的根系活力。发现人参根系活力在６月中旬（开花期）较低，是人参红皮病发病的主要时期。７月上旬（结果期）明显升高；西洋参根系活力在６月中旬（展叶期）较低，７月上旬（开花期）达高峰。

The root activity of the ginseng and the American ginseng were analysed. The results showed that after flower stage. especially at fruit stage, The root-activities of the ginseng was higher. During flower stage the ginseng was lowere. It is also main period that the red-skin-disease of the ginseng rose. However, the root-activities of the American ginseng is highest at the flower stage. It is lower in mid-June.