Journal of Food and Nutrition Research
ISSN (Print): 2333-1119 ISSN (Online): 2333-1240 Website: http://www.sciepub.com/journal/jfnr Editor-in-chief: Prabhat Kumar Mandal
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Journal of Food and Nutrition Research. 2022, 10(2), 144-150
DOI: 10.12691/jfnr-10-2-7
Open AccessArticle

Effects of Ferrous Sulfate Seed Soaking with Different LED Light Quality on the Nutritional Quality and Growth of Pea Shoot

Wang Fang1, Peng Honggui1, 2, Yuan Xinrui1, Zhu Min3, Yang Qichang1, Lin Zhitong1, and Liao Qiuhong1,

1Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China

2College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400712, China

3Zhuhai (Hengqin) Food Safety Institute, Zhuhai 519000, China

Pub. Date: January 25, 2022

Cite this paper:
Wang Fang, Peng Honggui, Yuan Xinrui, Zhu Min, Yang Qichang, Lin Zhitong and Liao Qiuhong. Effects of Ferrous Sulfate Seed Soaking with Different LED Light Quality on the Nutritional Quality and Growth of Pea Shoot. Journal of Food and Nutrition Research. 2022; 10(2):144-150. doi: 10.12691/jfnr-10-2-7

Abstract

In this study, to explore the suitable cultivation method of pea shoot in the plant factory, the effects of ferrous sulfate seed soaking with different LED light quality on nutrient and growth were studied. Pea seeds were soaked in ferrous sulfate (80mg/L) and then cultivated under six different light quality combinations, including #1: 38% white light + 30% red light + 30% blue light + 2% far-red light; #2: 50% white light +50% blue light; #3: 50% white light +50% red light; #4: 40% white light +30% red light +30% blue light; #5: 100% white light; #6: 39% white light +30% red light +30% blue light +1% ultraviolet light. The results showed that the nutrient of VC, active iron, and the growth parameters of stem diameter, branch number, and yield were not significantly affected by ferrous sulfate seed soaking, but by the LED light quality. After the seeds were routinely soaked in water, the supplement of ultraviolet light to the combination of white light and red-blue light was beneficial to the accumulation of VC content in pea shoot, while the increase of red light ratio significantly reduced the VC content. Blue light or white light seemed to increase the active iron content of pea shoot, but no obvious rule was found. The addition of a small amount of far-red light to the combination of white light and red-blue light significantly promoted the growth of the pea shoot, resulting in the largest stem diameter, branch number, and the highest yield. The results of this study provided important references to produce high-quality pea shoots in plant factories.

Keywords:
pea shoot plant factory seed soaking light quality

Creative CommonsThis work is licensed under a Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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