Silicon Leaf Fertilization Promotes Biofortification and Increases Dry Matter, Ascorbate Content, and Decreases Post-Harvest Leaf Water Loss of Chard and Kale

Souza, José Zénóbio de; Prado, Renato de Mello; Silva, Sylvia Letícia de Oliveira; Farias, Thiago Palhares; Neto, Joaquim Gonçalves Machado; Souza, Jonás Pereira de

doi:10.1080/00103624.2018.1556288

Cited by 21 publications

(10 citation statements)

References 9 publications

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“…6 c,d). The post-harvest Si effect has already been reported for lettuce 14 , and chard and cabbage 12 grown without nutritional stress.…”

Section: Discussionmentioning

confidence: 62%

“…3 b,c). There are reports in the literature on the decreasing leakage of cellular electrolytes ensuring the maintenance of tissue integrity for several species such as wheat Ma et al 11 , chard and cabbage, via Si foliar spraying 12 , broccoli and cauliflower 13 , and corn 33 but no reports on cabbage.…”

Section: Discussionmentioning

confidence: 99%

“…However, the effects of providing Si to cabbage grown under Ca deficiency are still unknown. Additionally, studies focusing on supplemental Si are mostly carried out using foliar sprays 12 , 16 as the application method while the effects of Si supplied via nutritive solution are still little explored.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, this oxidative damage degrades the cell wall 9 , impairs tissue firmness, and increases water loss which, in turn, results in leaf wilt 10 and reduced shelf life of the harvested product.Silicon (Si) may be an alternative to mitigate the biological damage caused by Ca deficiency in cabbage since it has been shown to increase the production of antioxidant compounds, such as ascorbic acid, in wheat 11 , chard and cabbage 12 . Studies in the literature have shown that Si decreases ROS content [12][13][14] and, consequently, oxidative stress. Also, Si can act on the cell wall by combining carboxylic radicals while forming lignin and pectin cross-links 15 .…”

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confidence: 99%

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Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

Silva

Prado

Lata-Tenesaca

et al. 2021

Sci Rep

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Calcium (Ca) deficiency in cabbage plants induces oxidative damage, hampering growth and decreasing quality, however, it is hypothesized that silicon (Si) added to the nutrient solution may alleviate crop losses. Therefore, this study aims at evaluating whether silicon supplied in the nutrient solution reduces, in fact, the calcium deficiency effects on cabbage plants. In a greenhouse, cabbage plants were grown using nutrient solutions with Ca sufficiency and Ca deficiency (5 mM) without and with added silicon (2.5 mM), arranged as a 2 × 2 factorial in randomized blocks, with five replications. At 91 days after transplanting, the plants were harvested for biological evaluations. In the treatment without added Si, Ca deficiency promoted oxidative stress, low antioxidant content, decreased dry matter, and lower quality leaf. On the other hand, added Si attenuated Ca deficiency in cabbage by decreasing cell extravasation while increasing both ascorbic acid content and fresh and dry matter, providing firmer leaves due to diminished leaf water loss after harvesting. We highlighted the agronomic importance of Si added to the nutrient solution, especially in crops at risk of Ca deficiency.

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“…6 c,d). The post-harvest Si effect has already been reported for lettuce 14 , and chard and cabbage 12 grown without nutritional stress.…”

Section: Discussionmentioning

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

Silva

Prado

Lata-Tenesaca

et al. 2021

Sci Rep

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“…cicla ) and kale ( Brassica oleracea L. var. acephala ) grown in a hydroponic system, De Souza et al [ 147 ] compared the effects of two Si sources, namely potassium silicate and stabilized sodium potassium silicate with sorbitol, and four Si concentration in a foliar spray solution (from 0.00 to 2.52 g L −1 ). They found that in both species, the Si concentration in leaves linearly increased in response to Si concentration in the foliar spray solution, with the best biofortification results obtained by spraying potassium silicate.…”

Section: Agronomic Mineral Biofortificationmentioning

confidence: 99%

Mineral Biofortification of Vegetables as a Tool to Improve Human Diet

Buturi

Mauro

Fogliano

et al. 2021

Foods

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Vegetables represent pillars of good nutrition since they provide important phytochemicals such as fiber, vitamins, antioxidants, as well as minerals. Biofortification proposes a promising strategy to increase the content of specific compounds. As minerals have important functionalities in the human metabolism, the possibility of enriching fresh consumed products, such as many vegetables, adopting specific agronomic approaches, has been considered. This review discusses the most recent findings on agronomic biofortification of vegetables, aimed at increasing in the edible portions the content of important minerals, such as calcium (Ca), magnesium (Mg), iodine (I), zinc (Zn), selenium (Se), iron (Fe), copper (Cu), and silicon (Si). The focus was on selenium and iodine biofortification thus far, while for the other mineral elements, aspects related to vegetable typology, genotypes, chemical form, and application protocols are far from being well defined. Even if agronomic fortification is considered an easy to apply technique, the approach is complex considering several interactions occurring at crop level, as well as the bioavailability of different minerals for the consumer. Considering the latter, only few studies examined in a broad approach both the definition of biofortification protocols and the quantification of bioavailable fraction of the element.

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Introduction to Plant Nutrition

Prado

de²

2021

Mineral Nutrition of Tropical Plants

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Silicon Leaf Fertilization Promotes Biofortification and Increases Dry Matter, Ascorbate Content, and Decreases Post-Harvest Leaf Water Loss of Chard and Kale

Cited by 21 publications

References 9 publications

Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

Silicon attenuates calcium deficiency by increasing ascorbic acid content, growth and quality of cabbage leaves

Mineral Biofortification of Vegetables as a Tool to Improve Human Diet

Introduction to Plant Nutrition

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