A Case Study on Minerals Interaction in the Soil and Se Enrichment in Rice (Oryza sativa L.)

Ana Coelho Marques; Diana Daccak; Inês Carmo Luís; Ana Rita F. Coelho; Cláudia Campos Pessoa; Paula Scotti Campos; Manuela Simões; Ana Sofia Almeida; Maria F. Pessoa; Fernando Reboredo; Carlos Galhano; José C. Ramalho; Paula Marques; Maria Manuela Silva; Paulo Legoinha; Karliana Oliveira; Isabel P. Pais; Fernando C. Lidon

doi:10.3390/IECPS2021-11953

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A Case Study on Minerals Interaction in the Soil and Se Enrichment in Rice (Oryza sativa L.)

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¹ Earth Sciences Department, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
² GeoBioTec Research Center, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
³ INIAV, Instituto Nacional de Investigação Agrária e Veterinária, Oeiras, Portugal
⁴ INIAV, Instituto Nacional de Investigação Agrária e Veterinária, Elvas, Portugal
⁵ PlantStress & Biodiversity Lab, Centro de Estudos Florestais, Instituto Superior Agronomia, Universidade de Lisboa, Oeiras, Portugal
⁶ COTArroz, Centro Operativo e Tecnológico do Arroz, Salvaterra de Magos, Portugal
⁷ ESEAG, Escola Superior de Educação Almeida Garrett, Lisboa, Portugal

Academic Editor: Dimitris Bouranis

Published: 30 November 2021 by MDPI in The 2nd International Electronic Conference on Plant Sciences—10th Anniversary of Journal Plants session Plant Nutrition and Plant-Soil-Microorganisms Interactions

https://doi.org/10.3390/IECPS2021-11953

Abstract:

Selenium plays a important role in regulating soil-plant ecosystem functions. Is an essential element with antioxidative activity however its presence in plants is scarce. In this context, a technical itinerary was implemented in the rice variety (Ariete) through foliar pulverization with two selenium concentrations (50 and 75g Se.ha^-1) of sodium selenate (Na₂SeO₄) and sodium selenite (Na₂SeO₃). Regarding the interaction of Se with other nutrients namely Zn the contents were analyzed in paddy and refined flours. It was found that in the refined flours there was an antagonistic relationship with the element Zn: an increase of Se in the grain, 29.9 to 77.9 g Se.ha^-1_., and a decrease of Zn content from 16.6 to 9.01 g Se.ha^-1_.

Keywords: Rice; Soil; Selenium; Zinc

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