Increased nutritional quality of rice grains and migration mechanisms of selenium by spraying a foliar selenium-rich nutrient solution

• Published in: Journal of plant nutrition 2024-05, Vol.47 (9), p.1347-1363
• Main Authors: Zhang, Xiaorong, Li, Wenshuan, Gong, Zongqiang, Ludlow, Richard A., Xiao, Mei, Zhao, Bin, Li, Xiaojun, Jia, Chunyun, Li, Peijun, Liu, Wan
• Format: Article
• Language: English
• Subjects: biofortification; China; Cuticular wax; Epicuticular wax; Fertilizers; Field tests; foliar application; Foliar applications; human health; leaf morphology; Leaves; Nutrient content; nutrient solutions; Nutritional requirements; Nutritive value; Physical characteristics; protein content; Rice; rice quality; Se fertilizer; Se speciation; Selenium; selenium fertilizers; Spraying; Thickness; Wettability
• ISSN: 0190-4167; 1532-4087; 1532-4087
• DOI: 10.1080/01904167.2024.2310572

Foliar application of selenium (Se) is an effective method for biofortification in rice, to ensure that sufficient Se is supplied by the crop to maintain human health. In order to improve Se concentration in rice and meet the daily recommended intake for humans, a foliar Se fertilizer was applied in five regions of Liaoning and Jilin provinces, China, and its effects on rice quality, leaf morphology, and wax characteristics were assessed in field tests. The effects of alkyl polyglycosides (APG) in the Se fertilizer were evaluated, and epicuticular waxes were measured to analyze the effects of the fertilizer on plant water status. The Se fertilizer effectively enhanced organic Se levels in rice (p