Macronutrients content of radishes and the influence of biofortification with selenium

•The production parameters were higher with the selenate than with the selenite at the studied Se doses.•The Se contents and accumulations at the radishes and in the leaves were higher with the selenate at each Se dose.•The K levels in the radishes were increased at 1.2 and 1.8 mg dm−3 of Se in the...

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Bibliographic Details
Published in:Scientia horticulturae 2022-04, Vol.296, p.110908, Article 110908
Main Authors: Cipriano, Patriciani Estela, Siueia Júnior, Matias, de Souza, Ray Rodrigues, da Silva, Deivisson Ferreira, da Silva, Rodrigo Fonseca, Faquin, Valdemar, de Souza Silva, Maria Ligia, Guilherme, Luiz Roberto Guimarães
Format: Article
Language:English
Subjects:
Biofortification
Food security
Selenate
Selenite
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Summary:•The production parameters were higher with the selenate than with the selenite at the studied Se doses.•The Se contents and accumulations at the radishes and in the leaves were higher with the selenate at each Se dose.•The K levels in the radishes were increased at 1.2 and 1.8 mg dm−3 of Se in the application selenate.•A negative correlation was observed between the contents of Se and S in radishes. The supply of foods enriched with selenium (Se) is an effective way to improve human Se intake, especially in developing countries. Thus, this study aimed to evaluate the efficiency of Raphanus sativus L. as an agricultural crop suitable for Se biofortification and to investigate the influence of different Se doses and sources regarding macronutrients accumulation and absorption. The experiment was conducted under greenhouse conditions with a completely randomized design in 2 × 3 + 1 factorial scheme: two Se sources (sodium selenate - Na2SeO4 and sodium selenite - Na2SeO3·5H2O) were applied at three Se doses (0.6, 1.2 and 1.8 mg dm−3) via soil and control without Se application, with three replications. The selenate application interfered with the sulfur absorption. However, it contributed to the increase of K contents at higher Se doses. Radish can be biofortified with Se once this element presents adequate levels. The use of selenate in lower doses (0.6 mg dm−3) is preferable to provide an adequate Se level intake and did not reduce radish production, even at the highest doses.
ISSN:0304-4238
1879-1018
DOI:10.1016/j.scienta.2022.110908