Preprint Article Version 1 This version is not peer-reviewed

Sole-Source LED Lighting and Fertility Impact Shoot and Root Tissue Mineral Elements in Chinese Kale (Brassica oleracea var. alboglabra)

Version 1 : Received: 16 January 2020 / Approved: 17 January 2020 / Online: 17 January 2020 (04:44:20 CET)

How to cite: Barickman, T.C.; Kopsell, D.A.; Sams, C.E.; Marrow, R.C. Sole-Source LED Lighting and Fertility Impact Shoot and Root Tissue Mineral Elements in Chinese Kale (Brassica oleracea var. alboglabra). Preprints 2020, 2020010178 (doi: 10.20944/preprints202001.0178.v1). Barickman, T.C.; Kopsell, D.A.; Sams, C.E.; Marrow, R.C. Sole-Source LED Lighting and Fertility Impact Shoot and Root Tissue Mineral Elements in Chinese Kale (Brassica oleracea var. alboglabra). Preprints 2020, 2020010178 (doi: 10.20944/preprints202001.0178.v1).

Abstract

The current study investigated the impacts of light quality and different levels of fertility on mineral nutrient concentrations in shoot and root tissues of Chinese kale (Brassica oleracea var. alboglabra). ‘Green Lance’ Chinese kale were grown under: 1) fluorescent/incandescent light; 2) 10% blue (447 ± 5 nm) / 90% red (627 ± 5 nm) LED light; 3) 20% blue / 80% red LED light; and 4) 40% blue / 60% red LED light as sole-source lighting at two different levels of fertility. All plants were harvested 30 d after seeding, and shoot and root tissues were analyzed for mineral nutrients. Lighting and fertility interacted to influence kale shoot and root mineral nutrient concentrations. Results indicate sole-source LED lighting used in production can impact mineral nutritional values of baby leafy greens now popular for the packaged market.

Subject Areas

blue light; calcium; iron; magnesium; potassium; red light

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