참당귀 관행재배와 노지플러그 육묘재배의 수량 및 품질 비교
Evaluation of Yield and Quality in Open-field Plug Tray Cultivation of Angelica gigas Nakai Compared to Conventional Seedling Transplanting
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Background: In this study, we investigated the sowing of Angelica gigas Nakai in plug trays under open-field conditions at various times. We aimed to compare and evaluate the yield and quality of Angelica gigas grown in open-field plug trays with those grown using the conventional field seed- ling transplantation method employed by Good Agricultural Practices (GAP)-certified farms. Methods and Results: A. gigas seeds from a GAP-certified farm were stored at 4 ℃ before use. The seeds were sown in 128-cell plug trays from October 2022 to February 2023 and cultivated under open-field conditions until spring. The seedlings were assessed for various growth parame- ters in late April. Transplantation was performed in plots with standard spacing and fertilization. The establishment rate was evaluated two weeks post-transplantation, and the plants were har- vested in late October for yield measurements. The indicator compounds were analyzed using HPLC. The late February sowing treatment resulted in a significantly higher yield. All open-field plug tray sowing treatments, including the late February treatment, met the pharmacopoeial stan- dard, with total indicator compound contents of decursin, decursinol angelate, and nodakenin exceeding 6%. Conclusions: Open-field plug seedlings treatment resulted in a slightly lower yield and compound content than that observed with conventional cultivation. However, it reduced the cultivation period by over a year while still meeting the compound standards, making it a valuable method.
Abstract
Background: In this study, we investigated the sowing of Angelica gigas Nakai in plug trays under open-field conditions at various times. We aimed to compare and evaluate the yield and quality of Angelica gigas grown in open-field plug trays with those grown using the conventional field seed- ling transplantation method employed by Good Agricultural Practices (GAP)-certified farms. Methods and Results: A. gigas seeds from a GAP-certified farm were stored at 4 ℃ before use. The seeds were sown in 128-cell plug trays from October 2022 to February 2023 and cultivated under open-field conditions until spring. The seedlings were assessed for various growth parame- ters in late April. Transplantation was performed in plots with standard spacing and fertilization. The establishment rate was evaluated two weeks post-transplantation, and the plants were har- vested in late October for yield measurements. The indicator compounds were analyzed using HPLC. The late February sowing treatment resulted in a significantly higher yield. All open-field plug tray sowing treatments, including the late February treatment, met the pharmacopoeial stan- dard, with total indicator compound contents of decursin, decursinol angelate, and nodakenin exceeding 6%. Conclusions: Open-field plug seedlings treatment resulted in a slightly lower yield and compound content than that observed with conventional cultivation. However, it reduced the cultivation period by over a year while still meeting the compound standards, making it a valuable method.
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