Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability

The low dietary intake of iodine (I) and selenium (Se) by humans leads to serious health and socioeconomic problems. Therefore, enrichment of plants with I and Se using fertilisers containing these micronutrients is commonly recommended. In this study, we examined the impacts of combined spraying of...

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Main Author: Paweł Wójcik
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9997897/?tool=EBI
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author Paweł Wójcik
author_facet Paweł Wójcik
author_sort Paweł Wójcik
collection DOAJ
description The low dietary intake of iodine (I) and selenium (Se) by humans leads to serious health and socioeconomic problems. Therefore, enrichment of plants with I and Se using fertilisers containing these micronutrients is commonly recommended. In this study, we examined the impacts of combined spraying of I as iodide or iodate, Se as selenite or selenate, and calcium (Ca) as Ca-chloride on the enrichment of ‘Red Jonaprince’ (Malus domestica Borth.) apples, as well as fruit quality and their storability. Sprays were applied 2 weeks before harvest at rates of 0.5 kg I, 0.25 kg Se and 7 kg Ca per ha. Trees not sprayed with these nutrients served as controls. The tested sprays caused leaf burn, but they did not affect the cold injury of buds and shoots. Those sprays had no effect on yield, fruit size and russeting or skin colouring. At harvest, sprayed apples contained about 50 times more I and Se and 30% more Ca than the control fruit. After storage, compared to the control fruit, sprayed apples were firmer, had more organic acids and were less susceptible to disorders, such as bitter pit, internal breakdown and decay caused by Neofabraea spp. The results indicate that preharvest spraying with I, Se and Ca at high rates can be recommended to effectively enrich apples with I and Se and to simultaneously improve their storability.
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spelling doaj.art-fa6ae3557fc14de4ae24e16e368443c82023-03-12T05:32:30ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01183Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storabilityPaweł WójcikThe low dietary intake of iodine (I) and selenium (Se) by humans leads to serious health and socioeconomic problems. Therefore, enrichment of plants with I and Se using fertilisers containing these micronutrients is commonly recommended. In this study, we examined the impacts of combined spraying of I as iodide or iodate, Se as selenite or selenate, and calcium (Ca) as Ca-chloride on the enrichment of ‘Red Jonaprince’ (Malus domestica Borth.) apples, as well as fruit quality and their storability. Sprays were applied 2 weeks before harvest at rates of 0.5 kg I, 0.25 kg Se and 7 kg Ca per ha. Trees not sprayed with these nutrients served as controls. The tested sprays caused leaf burn, but they did not affect the cold injury of buds and shoots. Those sprays had no effect on yield, fruit size and russeting or skin colouring. At harvest, sprayed apples contained about 50 times more I and Se and 30% more Ca than the control fruit. After storage, compared to the control fruit, sprayed apples were firmer, had more organic acids and were less susceptible to disorders, such as bitter pit, internal breakdown and decay caused by Neofabraea spp. The results indicate that preharvest spraying with I, Se and Ca at high rates can be recommended to effectively enrich apples with I and Se and to simultaneously improve their storability.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9997897/?tool=EBI
spellingShingle Paweł Wójcik
Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
PLoS ONE
title Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
title_full Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
title_fullStr Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
title_full_unstemmed Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
title_short Effects of preharvest sprays of iodine, selenium and calcium on apple biofortification and their quality and storability
title_sort effects of preharvest sprays of iodine selenium and calcium on apple biofortification and their quality and storability
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9997897/?tool=EBI
work_keys_str_mv AT pawełwojcik effectsofpreharvestspraysofiodineseleniumandcalciumonapplebiofortificationandtheirqualityandstorability