Interaction of light quality and fertility on biomass, shoot pigmentation and xanthophyll cycle flux in Chinese kale

Kopsell, Dean A.; Sams, Carl E.; Morrow, Robert C.

doi:10.1002/jsfa.7814

Cited by 22 publications

(27 citation statements)

References 36 publications

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“…In this study, 150 μmol · m −2 · s −1 × 1/4NSC was conducive to chlorophyll accumulation, whereas the treatment of 450 μmol · m −2 · s −1 × 1/2NSC was unfavourable for chlorophyll accumulation (Table 3). However, higher chlorophyll content in Chinese kale was induced in the higher fertility treatment 30 . This might be due to that the chlorophyll contents were more affected by light intensity (p ≤ 0.01) than NSC (p ≤ 0.05) (Table 3).…”

Section: Discussionmentioning

confidence: 90%

Nutritional quality, mineral and antioxidant content in lettuce affected by interaction of light intensity and nutrient solution concentration

Song

Huang

Hao

et al. 2020

Sci Rep

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Light and nutrient are important factors for vegetable production in plant factory or greenhouse. The total 12 treatments which contained the combination of four light intensity (150, 250, 350 and 450 μmol · m −2 · s −1 ) and three nutrient solution concentration (NSC) (1/4, 1/2, 3/4 strength NSC) were established for investigation of lettuce growth and quality in a growth chamber. The combination of light intensity and NSC exhibited significant effects on photosynthetic pigment, nutritional quality, mineral content and antioxidant capacity. That a higher light intensity were readily accessible to higher chlorophyll a/b showed in lettuce of treatment of 350 μmol · m −2 · s −1 × 3/4NSC and 450 μmol · m −2 · s −1 × 1/4NSC. Lower total N contents, higher content of soluble protein, vitamin C, soluble sugar and free amino acid exhibited in lettuce under treatment of 250 and 350 μmol · m −2 · s −1 × 1/4NSC or 3/4NSC. With increasing NSC and LED irradiance, the content of total P and K in lettuce increased and decreased, respectively. The highest and lowest total Ca content were found in treatment of 150 μmol · m −2 · s −1 × 1/4NSC and 450 μmol · m −2 · s −1 × 1/4NSC, respectively, and higher content of total Mg and Zn was observed under 250 μmol m −2 s −1 × 1/4NSC and 150 μmol · m −2 · s −1 × 3/4NSC, respectively. The antioxidant contents generally decreased with increasing NSC level. The higher antioxidant content and capacity occurred in lettuce of 350 μmol · m −2 · s −1 × 1/4NSC treatment. The interaction of 350 μmol · m −2 · s −1 × 1/4NSC might be the optimal condition for lettuce growth in plant factory.Lettuce (Lactuca sativa L.) is one of the most important vegetable in the world, which is main crop in plant factory. The secondary metabolite in vegetable plays key roles for human body health, such as phenolic compound, vitamin A and C, and carotenoid. These compounds have a function on nutrition and health care 1 , which could enhance anti-oxidation ability of human body, and the suppression of inflammatory disease and cancer 2,3 . Nutritional quality of lettuce is affected by light and nutrient solution in plant factory. Light (including light quality, intensity and photoperiod) plays a crucial role in improvement of plant nutrition quality 4,5 . The proper ratio of red and blue light is essential for plant growth and development 6 . Light intensity not only positively regulates lettuce biomass and morphology, but also nutrition quality and activities of anti-oxidative enzymes 7,8 . The content of soluble sugars and ascorbic acid in lettuce increases with increasing light intensity 9 . Different light intensity is required by different plant for nutritional quality and growth. The highest content of lutein, ß-carotene and chlorophyll in leave shows at 335 μmol · m −2 · s −1 for kale, but 200 μmol · m −2 · s −1 for spinach 10 . In ten leafy vegetables (chicory, green lettuce, lamb's lettuce, mizuna, red chard, red lettuce, rocket, spinach, swiss chard, and tatsoi), higher leaf dry matter, content of protein, K,...

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Section: Discussionmentioning

confidence: 90%

Nutritional quality, mineral and antioxidant content in lettuce affected by interaction of light intensity and nutrient solution concentration

Song

Huang

Hao

et al. 2020

Sci Rep

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“…18 Kopsell et al demonstrated that interactions of light quality, comparing fluorescent/incandescent and LED lights, and fertility significantly increased Chinese kale shoot biomass and pigment concentrations. 15 Yan et al demonstrated similar results comparing fluorescent/incandescent and LED lights with biomass accumulation but also discovered significant differences in vitamin C and soluble protein content in lettuce (Lactuca sativa). 19 Limited research exists on how different LED light ratios affect the mineral nutrient concentrations and accumulation.…”

Section: Discussionmentioning

confidence: 81%

“…Responses in kale biomass from the current study have been published previously. 15 Kale shoot fresh mass (FM) was influenced by light treatment, fertility treatment, and their interaction. Kale shoot tissue FM under ¼ strength fertility was 17.30, 9.24, 11.03, and 9.11 g per plant for the light quality treatments of fluorescent/incandescent light, 10% blue / 90% red, 20% blue / 80% red, and 40% blue / 60% red, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Kale shoot tissue FM under ½ strength fertility was 25.74, 9.27, 13.92, and 11.63 g per plant for the light quality treatments of fluorescent/incandescent light, 10% blue / 90% red, 20% blue / 80% red, and 40% blue / 60% red, respectively. 15 Previous LED research on leafy greens has focused on growth, morphological changes, yield, and phytonutrient concentrations. For example, Chen et al indicated that there were significant differences in plant height, width, FM, DM, and leaf length and leaf width in lettuce grown under red and blue LED light at different daily light integrals.…”

Section: Discussionmentioning

confidence: 99%

“…Several previous studies within our collaborative research efforts demonstrate the ability to increase secondary metabolic pathways and mineral nutrient uptake associated with nutritional quality factors. 10,11,15,24 However, the current research study is the first to examine how novel LED light ratios and differing fertilizer regimes affect mineral nutrients uptake into plant root and shoot tissues. By manipulating light ratios and mineral nutrient concentrations, it is proven that plants can be manipulated with novel LED light ratios coupled with lower mineral nutrients for a more sustainable approach to plant growth.…”

Section: Discussionmentioning

confidence: 99%

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

Barickman¹,

Kopsell²,

Sams³

et al. 2020

Preprint

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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.

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Microgreens

Verlinden¹

2019

Horticultural Reviews

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Interaction of light quality and fertility on biomass, shoot pigmentation and xanthophyll cycle flux in Chinese kale

Cited by 22 publications

References 36 publications

Nutritional quality, mineral and antioxidant content in lettuce affected by interaction of light intensity and nutrient solution concentration

Nutritional quality, mineral and antioxidant content in lettuce affected by interaction of light intensity and nutrient solution concentration

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

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