Effect of the Nitrogen Nutrient on Pigments of Flower Stalk in Chinese Kale

Abstract:

Effect of nitrogen level (50, 100, 200, 300, 400 mg/L) on pigment accumulation of flower stalk in Chinese kale (Brassica alboglabra Bailley) (cv. Zhonghua) were studied by hydroponics. The results showed that chlorophyll concentration of flower stalk in 50 mg/L and 100 mg/L N treatments were higher before stage Ⅲ, those in 50 mg/L were the highest, while those in 200 mg/L N treatment were the highest at stage Ⅳ and Ⅴ. Carotenoid concentrations in 50mg/L N treatment were the highest during flower stalk development (except at stageⅤ), while those in 100mg/L N treatment were the highest at stagesⅤ.The concentrations of flavonoids and anthocyanin in flower stalk epidermis were the highest in 100 mg/L N treatment, those in 50mg/L N treatment were higher than other treatments. The ratio of anthocyanin/chlorophyll in flower stalk epidermis also were the highest in 100 mg/L N treatment, and higher in 50mg/L N treatment, thus the epidermis appeared mauve in 50 and 100mg/L N treatments.

• Periodical: Applied Mechanics and Materials (Volume 142)
• Pages: 37-41
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.142.37
• Online since: November 2011
• Authors: Ri Yuan Chen, Shi Wei Song, Chuan Zhen Song, Hou Cheng Liu, Guang Wen Sun, Dan Feng Huang
• Keywords: Anthocyanin, Brassica alboglabra Bailley, Chlorophyll, Flavonoid, Nitrogen Nutrient

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