カワラヨモギArtemisia capillarisの花穂および利胆作用成分生産におよぼす無機栄養素の影響

概要

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It is reported that the use of mineral fertilizers, especially, nitrogen-containing ones causes damage to the growth of some wild plants. Therefore, to know the effect of such mineral elements on the cultivation of Artemisia capillaris, wild A. capillaris was cultivated using fertilizers containing such elements as, P, and K, and nitrogen of different forms (NO_3-N, NH_4-N) in different amounts. The result showed that the flower bud dry weight and the choleretic substance contents in the flower buds increased by tne use of mineral fertilizers. When the NO_3-N content was less, the flower bud dry weight decreased, but it did not affect the capillarisin and dimethylesculetin contents. On the other hand, the NH_4-N content had no effect on the flower bud dry weight, but the capillarisin and dimethylesculetin contents decreased when the amount of NH_4-N used was too small or too large. These facts show that the application of mineral fertilizers is not harmful to the growth of A. capillaris: it produces good effects though we have to be careful about the use of NH_4-N as NH_4-N has its optimum level.
日本生薬学会の論文
1989-12-20