The seed sweet potatoes were soaked in the 80% solution of H2SO4 or in the 30% solution of HCl for 15 or 3O seconds. Injured sweet potatoes were also treated by the same method as above mentioned. Then they were set on seed-bed to compare the sprouting ability. The results obtained are summarized as follows: 1. The sprouting ability of sweet potatoes was invigorated and the growth of buds and roots was accelerated by the acid-treatment. Nevertheless, in some varieties, number of buds per a potato decreased and the position of sprouted buds on the potato was removed from the apical portion to the basal portion. 2. Suger contents of treated seed potatoes increased more rapidly while a few days after setting on bed. 3. The rot of the injured potatoes was prevented by the acid-treatment and the sprouting ability of them was pretty vigorous. 4. By these facts, it may be suggested that the formation of growth substances as traumachic acid will be accelerated and the activity of enzyme will be invigorated by the acid treatment.
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机译：将种子甘薯浸泡在H 2 SO 4的80％溶液中或在30％HCl溶液中浸泡15或3O秒。受伤的甘薯也通过与上述相同的方法处理。然后他们被设置在种子床上，以比较发芽能力。得到的结果总结如下：1。甘薯的发芽能力振奋，酸处理加速了芽和根的生长。然而，在一些品种中，每只马铃薯的芽数减少，从顶部部分除去薯片上的发芽芽的位置到基部。 2.在床上设置后，处理过的种子土豆的含量较快增加。酸治疗防止受伤土豆的腐烂，并且它们的发芽能力非常有力。 4.通过这些事实，可能表明将生长物质的形成将加速，并且酶的活性将通过酸处理振动。
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