Effects of Supplemental UV-A and UV-C Irradiation on Growth, Photosynthetic Pigments and Nutritional Quality of Pea Seedlings

文献类型: 外文期刊

第一作者: Liu, W.

作者: Liu, W.;Yang, Q.

作者机构:

关键词: UV-A;UV-C;pea seedling;nutritional quality;supplemental lighting

期刊名称:VII INTERNATIONAL SYMPOSIUM ON LIGHT IN HORTICULTURAL SYSTEMS

ISSN: 0567-7572

年卷期: 2012 年 956 卷

页码:

收录情况: SCI

摘要: A pot cultivation experiment was conducted in a glasshouse to investigate the effects of one-hour supplemental UV-A (365 nm) and UV-C (254 nm) irradiation during night on growth, photosynthetic pigments and nutritional quality of pea seedlings. The results showed that supplemental UV-A did not have any effect on the shoot, root and total biomass of pea seedlings compared with control treatment, while supplemental UV-C significantly decreased shoot and root biomass of pea seedlings. In addition, UV-A did not change photosynthetic pigment content of shoot, but UV-C remarkably reduced photosynthetic pigment contents. Furthermore, supplemental UV-A did not affect vitamin C, nitrate, anthocyanin and flavonoid contents of pea seedling shoot. However, supplemental UV-C notably reduced vitamin C content, but increased flavonoid content, while it did not affect nitrate and anthocyanin contents of pea seedling shoot compared with the control treatment. To sum up, supplemental UV-A irradiation during night had no effect on growth, photosynthetic pigment and nutritional quality of pea seedlings, while supplemental UV-C irradiation inhibited the growth, and decreased photosynthetic pigment content of shoot, also altered shoot nutritional quality of pea seedlings.

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