Physiological quality of scarlet eggplant seeds produced in soil contaminated with industrial residues

Lopes, José Carlos; Freitas, Allan Rocha de; Candido, Amarilson O; Venâncio, Luan Peroni; Fávaris, Nathália Aparecida Bragança

doi:10.1590/s0102-053620180111

Cited by 1 publication

(1 citation statement)

References 16 publications

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“…In Brazil, this species is important in the market because it is a typical vegetable in the its cuisine 5 . The States of Rio de Janeiro and Minas Gerais stand out in its cultivation, with an average productivity of 20 and 60 t ha −1 6 . However, the increase in growth and productivity of this species can be limited by different types of stress, especially abiotic ones, such as nutritional disorders 7 .…”

Section: Introductionmentioning

confidence: 99%

Silicon in the form of nanosilica mitigates P toxicity in scarlet eggplant

Alves

Oliveira

Prado

et al. 2023

Sci Rep

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Intensive fertilization of vegetables can promote phosphorus (P) toxicity. However, it can be reversed using silicon (Si), although there is a lack of research clarifying its mechanisms of action. This research aims to study the damage caused by P toxicity to scarlet eggplant plants and whether Si can mitigate this toxicity. We evaluated the nutritional and physiological aspects of plants. Treatments were arranged in a 2 × 2 factorial design of two nutritional levels of adequate P (2 mmol L−1 of P) and toxic/excess P (8 to 13 mmol L−1 of P) combined with the absence or presence of nanosilica (2 mmol L−1 Si) in a nutrient solution. There were six replications. The excess P in the nutrient solution caused damage to scarlet eggplant growth due to nutritional losses and oxidative stress. We found that P toxicity can be mitigated by supplying Si, which decreases P uptake by 13%, improves C:N homeostasis, and increases iron (Fe), copper (Cu), and zinc (Zn) use efficiency by 21%, 10%, and 12%, respectively. At the same time, it decreases oxidative stress and electrolyte leakage by 18% and increases antioxidant compounds (phenols and ascorbic acid by 13% and 50%, respectively), and decreases photosynthetic efficiency and plant growth by 12% (by increasing 23% and 25% of shoot and root dry mass, respectively). These findings allow us to explain the different Si mechanisms used to reverse the damage caused by P toxicity to plants.

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Section: Introductionmentioning

confidence: 99%