https://scholars.lib.ntu.edu.tw/handle/123456789/626144
標題: | Responses of Cynanchum taiwanianum and Its Bioactive Compound Biosynthesis to Levels of Nitrogen and Potassium Fertilization | 作者: | Tseng H.-M Lu T.-M LEAN-TEIK HUANG |
關鍵字: | Bioactive compounds; Cynanchum taiwanianum; Cynandione A; Fertilization rates; Tuber yield | 公開日期: | 2022 | 卷: | 12 | 期: | 1 | 來源出版物: | Agronomy | 摘要: | Cynanchum taiwanianum is an important plant used in traditional medicine. The increasing demand and lack of information regarding its cultivation have become concerns for sustainability. This study examined the effects of nitrogen and potassium fertilization rates on the growth and biosynthesis of main bioactive compounds, including cynandione A and polyphenolic compounds, in field-cultivated C. taiwanianum. Two field experiments were conducted using three levels of nitrogen (N100, N150 and N200) and three levels of potassium (K100, K150 and K200) treatments. The experimental variables were either N or K fertilizer. The results showed that, aside from N200, N and K fertilization significantly increased C. taiwanianum shoot and tuber biomass. High N fertilization resulted in low total phenolic and total flavonoid contents in shoots and tubers, but the effects of K fertilization were minimal. Cynandione A, an important bioactive compound, was only detected in tubers; its content were enhanced with the increasing K fertilization, but reduced with excess N fertilization (N200). Although N and K fertilizers are important for C. taiwanianum tuber production, the yield of cynandione A was associated with K but not N fertilization rates. These results provide some essential information for the optimal production of C. taiwanianum tubers and functional compounds. Further studies are required to examine the mechanism(s) of cynandione A biosynthesis and its compartmentation in plant tissues. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123240319&doi=10.3390%2fagronomy12010180&partnerID=40&md5=d4bb863aeec820b3db868bb9ffb482e6 https://scholars.lib.ntu.edu.tw/handle/123456789/626144 |
ISSN: | 20734395 | DOI: | 10.3390/agronomy12010180 |
顯示於: | 農業化學系 |
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