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Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity

As global temperatures have steadily increased over past decades, studying of the impacts of heat stress on morpho-physiological traits and economic yields of horticultural crops have been increasingly gained attentions by many scientists and farmers. Hot pepper (Capsicum annuum L.) is an important...

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Autores principales: Kim, Min Kyoung, Jeong, Hyo Bong, Yu, Nari, Park, Bo Mi, Chae, Won Byoung, Lee, Oak Jin, Lee, Hye Eun, Kim, Sumin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468523/
https://www.ncbi.nlm.nih.gov/pubmed/37648718
http://dx.doi.org/10.1038/s41598-023-41418-5
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author Kim, Min Kyoung
Jeong, Hyo Bong
Yu, Nari
Park, Bo Mi
Chae, Won Byoung
Lee, Oak Jin
Lee, Hye Eun
Kim, Sumin
author_facet Kim, Min Kyoung
Jeong, Hyo Bong
Yu, Nari
Park, Bo Mi
Chae, Won Byoung
Lee, Oak Jin
Lee, Hye Eun
Kim, Sumin
author_sort Kim, Min Kyoung
collection PubMed
description As global temperatures have steadily increased over past decades, studying of the impacts of heat stress on morpho-physiological traits and economic yields of horticultural crops have been increasingly gained attentions by many scientists and farmers. Hot pepper (Capsicum annuum L.) is an important vegetable crop mostly grown in open-fields in South Korea. In this study, the impacts of prolonged heat stress on three hot pepper genotypes differing by levels of stress susceptibility were evaluated. The study was conducted in two different temperature-controlled greenhouses for 75 days. 48 days old plants were grown in control and heat-treated greenhouses where the temperatures had been set at 30 °C and 35 °C during the day for 75 days, respectively. Morphological, physiological, and nutrient characteristics of three accessions were measured. All hot pepper accessions were enabled to recover from prolonged heat stress exposures within approximately a month. The phenomenon of recovery was observed in some significant morphological and physiological characteristics. For example, the plant growth rate and photosynthesis rate significantly increased after 40th days of heat treatment. The heat stress sensitivity varied between genotypes. The plants that produced more fruits over biomass at early stage of heat treatment had relatively slow recovery, resulting in the largest yield loss. This key morphological characteristic can be used for future breeding program to adapt the prolonged heat stress.
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spelling pubmed-104685232023-09-01 Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity Kim, Min Kyoung Jeong, Hyo Bong Yu, Nari Park, Bo Mi Chae, Won Byoung Lee, Oak Jin Lee, Hye Eun Kim, Sumin Sci Rep Article As global temperatures have steadily increased over past decades, studying of the impacts of heat stress on morpho-physiological traits and economic yields of horticultural crops have been increasingly gained attentions by many scientists and farmers. Hot pepper (Capsicum annuum L.) is an important vegetable crop mostly grown in open-fields in South Korea. In this study, the impacts of prolonged heat stress on three hot pepper genotypes differing by levels of stress susceptibility were evaluated. The study was conducted in two different temperature-controlled greenhouses for 75 days. 48 days old plants were grown in control and heat-treated greenhouses where the temperatures had been set at 30 °C and 35 °C during the day for 75 days, respectively. Morphological, physiological, and nutrient characteristics of three accessions were measured. All hot pepper accessions were enabled to recover from prolonged heat stress exposures within approximately a month. The phenomenon of recovery was observed in some significant morphological and physiological characteristics. For example, the plant growth rate and photosynthesis rate significantly increased after 40th days of heat treatment. The heat stress sensitivity varied between genotypes. The plants that produced more fruits over biomass at early stage of heat treatment had relatively slow recovery, resulting in the largest yield loss. This key morphological characteristic can be used for future breeding program to adapt the prolonged heat stress. Nature Publishing Group UK 2023-08-30 /pmc/articles/PMC10468523/ /pubmed/37648718 http://dx.doi.org/10.1038/s41598-023-41418-5 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kim, Min Kyoung
Jeong, Hyo Bong
Yu, Nari
Park, Bo Mi
Chae, Won Byoung
Lee, Oak Jin
Lee, Hye Eun
Kim, Sumin
Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title_full Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title_fullStr Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title_full_unstemmed Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title_short Comparative heat stress responses of three hot pepper (Capsicum annuum L.) genotypes differing temperature sensitivity
title_sort comparative heat stress responses of three hot pepper (capsicum annuum l.) genotypes differing temperature sensitivity
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10468523/
https://www.ncbi.nlm.nih.gov/pubmed/37648718
http://dx.doi.org/10.1038/s41598-023-41418-5
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