Co-application of Se and a biostimulant at different wheat growth stages Influence on grain development

Co-application of Se and a biostimulant at different wheat growth stages : Influence on grain development

Copyright © 2021 Elsevier Masson SAS. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Plant physiology and biochemistry : PPB. - 1991. - 160(2021) vom: 19. März, Seite 184-192
1. Verfasser: Xiao, Tingting (VerfasserIn)
Weitere Verfasser: Boada, Roberto, Llugany, Mercè, Valiente, Manuel
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Plant physiology and biochemistry : PPB
Schlagworte:Journal Article Grain Plant biostimulant Se speciation Wheat XAS XRF Selenium H6241UJ22B
Beschreibung
Zusammenfassung:Copyright © 2021 Elsevier Masson SAS. All rights reserved.
An appropriate selenium intake can be beneficial for human health. Se-biofortified food in Se-deficient regions is becoming an increasingly common practice but there are still issues to be addressed regarding the observed Se-induced toxicity to the plant. In this respect, plant biostimulants are used to enhance nutrition efficiency, abiotic stress tolerance and crop quality. In this work, the efficacy of a plant biostimulant to counteract the Se-induced stress in wheat plants is experimentally assessed. The co-application of different Se-biofortification treatments and the biostimulant at different growth stages (tillering or heading stage) was investigated. The use of micro focused X-ray spectroscopy allows us to confirm organic Se species to be the main Se species found in wheat grain and that the proportion of organic Se species is only slightly affected by the Se application stage. Our study proves that the biostimulant had a key role in the enhancement of both the amount of grains produced per spike and their dry biomass without hindering Se enrichment process, neither diminishing the Se concentration nor massively disrupting the Se species present. This information will be useful to minimize both plant toxicity and economic cost towards a more effective and plant healthy selenium supplementation
Beschreibung:Date Completed 02.03.2021
Date Revised 02.03.2021
published: Print-Electronic
Citation Status MEDLINE
ISSN:1873-2690
DOI:10.1016/j.plaphy.2021.01.025