Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage

Climate change-induced heat stress poses a significant threat to global soybean production. This study investigated the impact of heat stress on growth and physiological parameters of 18 Indonesian soybean varieties at the seedling stage. Treatments involved exposing two-week-old seedlings to temper...

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Main Authors: Bashir Hassan, Samanhudi, Parjanto, Setyawati Andriyana, Komariah, Senge Masateru, Rahayu Muji, Salma Fathin Tilmiidzah
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:BIO Web of Conferences
Online Access:https://www.bio-conferences.org/articles/bioconf/pdf/2025/06/bioconf_10thiccc_01015.pdf
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author Bashir Hassan
Samanhudi
Parjanto
Setyawati Andriyana
Komariah
Senge Masateru
Rahayu Muji
Salma Fathin Tilmiidzah
author_facet Bashir Hassan
Samanhudi
Parjanto
Setyawati Andriyana
Komariah
Senge Masateru
Rahayu Muji
Salma Fathin Tilmiidzah
author_sort Bashir Hassan
collection DOAJ
description Climate change-induced heat stress poses a significant threat to global soybean production. This study investigated the impact of heat stress on growth and physiological parameters of 18 Indonesian soybean varieties at the seedling stage. Treatments involved exposing two-week-old seedlings to temperatures 25, 30, 35, 40 and 45°C for four hours daily over four consecutive days. The parameters assessed were survival rate, root length, shoot length, total plant weight, and relative water content. Results revealed significant variability in heat stress tolerance among varieties. While all varieties showed optimal growth at 25°C, increasing temperatures from 25 to 30°C led to an increase in growth. A critical threshold was observed between 35 and 40°C, where most varieties experienced a sharp performance decline. Notably, varieties Demas 1, Gepak Kuning, and Agromulyo consistently outperformed others even at 45°C where all other couldn’t survive, maintaining higher survival rates and better growth parameters even under severe stress conditions. This study provides valuable insights into soybean heat stress tolerance mechanisms and identifies promising genetic resources for breeding heat-resilient cultivars in Indonesia. Our findings contribute to the development of strategies to mitigate the impacts of climate change on soybean production, crucial for ensuring global food security in the face of rising temperatures.
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issn 2117-4458
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publishDate 2025-01-01
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spelling doaj-art-f4c74b042b6944388e9062758d93d69c2025-02-05T10:43:23ZengEDP SciencesBIO Web of Conferences2117-44582025-01-011550101510.1051/bioconf/202515501015bioconf_10thiccc_01015Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stageBashir Hassan0Samanhudi1Parjanto2Setyawati Andriyana3Komariah4Senge Masateru5Rahayu Muji6Salma Fathin Tilmiidzah7Department of Agronomy, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Department of Agronomy, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Department of Agronomy, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Department of Soil Science, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Union-Infrastructure Maintenance Laboratory, Gifu UniversityDepartment of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Department of Agronomy, Faculty of Agriculture, Universitas Sebelas Maret (UNS)Climate change-induced heat stress poses a significant threat to global soybean production. This study investigated the impact of heat stress on growth and physiological parameters of 18 Indonesian soybean varieties at the seedling stage. Treatments involved exposing two-week-old seedlings to temperatures 25, 30, 35, 40 and 45°C for four hours daily over four consecutive days. The parameters assessed were survival rate, root length, shoot length, total plant weight, and relative water content. Results revealed significant variability in heat stress tolerance among varieties. While all varieties showed optimal growth at 25°C, increasing temperatures from 25 to 30°C led to an increase in growth. A critical threshold was observed between 35 and 40°C, where most varieties experienced a sharp performance decline. Notably, varieties Demas 1, Gepak Kuning, and Agromulyo consistently outperformed others even at 45°C where all other couldn’t survive, maintaining higher survival rates and better growth parameters even under severe stress conditions. This study provides valuable insights into soybean heat stress tolerance mechanisms and identifies promising genetic resources for breeding heat-resilient cultivars in Indonesia. Our findings contribute to the development of strategies to mitigate the impacts of climate change on soybean production, crucial for ensuring global food security in the face of rising temperatures.https://www.bio-conferences.org/articles/bioconf/pdf/2025/06/bioconf_10thiccc_01015.pdf
spellingShingle Bashir Hassan
Samanhudi
Parjanto
Setyawati Andriyana
Komariah
Senge Masateru
Rahayu Muji
Salma Fathin Tilmiidzah
Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
BIO Web of Conferences
title Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
title_full Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
title_fullStr Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
title_full_unstemmed Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
title_short Impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
title_sort impact of heat stress on growth and physiological parameters of soybean varieties at the seedling stage
url https://www.bio-conferences.org/articles/bioconf/pdf/2025/06/bioconf_10thiccc_01015.pdf
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