Effect of continuous lighting on the growth and leaf chemical components of Artemisia princeps grown hydroponically in a plant factory condition
Effect of continuous lighting on the growth and leaf chemical components of Artemisia princeps grown hydroponically in a plant factory condition
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DOI：
10.36253/ahsc-12966
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发表时间：
2023-01
影响因子：
--
通讯作者：
N. Hata;M. Kawamura
中科院分区：
文献类型：
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作者：
N. Hata;M. Kawamura
茵陈蒿的嫩叶。艾蒿（Japanese mugwort）在日本已被用作食品，由于其绿原酸和总多酚的含量显著高于普通蔬菜，因此可被定位为功能性健康食品。为了在全人工光型植物工厂中通过水培生产全年获得所需的嫩叶，我们调查了24小时光周期，已知可以增强一些有益成分，是否可以改善在植物工厂条件下水培生长的日本艾蒿植物的生长和化学成分。正如我们先前证明的，降低营养液浓度增加了叶的绿原酸和总多酚含量而不降低生长，用较低浓度的营养液培养植物。结果表明，在植物工厂化条件下，营养液浓度低至标准的25%，在24小时光周期下水培生长艾蒿是可能的。此外，在24小时光周期下，植物生长大大加快，绿原酸以及总多酚增加，这表明24小时光周期是非常有益的日本艾蒿生产在一个完全人工光型植物工厂。
Young leaves of Artemisia princeps Pamp. (Japanese mugwort), already used as a foodstuff in Japan, can be positioned as a functional health food because of remarkably higher contents of chlorogenic acid and total polyphenol compared to common vegetables. To procure young leaves in demand on a year-round basis by hydroponic production in fully artificial light-type plant factories, we investigated whether 24-h photoperiod, known to enhance some beneficial constituents, could improve the growth and chemical constituents of Japanese mugwort plants grown hydroponically in a plant factory condition. As we previously demonstrated that lowering the nutrient solution concentration increased chlorogenic acid and total polyphenol contents of the leaves without reducing the growth, plants were cultivated with a lower concentration of nutrient solution. The results indicated that it is possible to grow Japanese mugwort hydroponically under 24-h photoperiod in a plant factory condition with a nutrient solution concentration as low as 25% of the standard. In addition, under 24-h photoperiod, plant growth was greatly accelerated and chlorogenic acid as well as total polyphenol were increased, suggesting that 24-h photoperiod is highly beneficial for Japanese mugwort production in a fully artificial light-type plant factory.