Dissecting the resilience of barley genotypes under multiple adverse environmental conditions
Abstract As climate change increases abiotic stresses like drought and heat, evaluating barley performance under such conditions is critical for maintaining productivity. To assess how barley performs under normal conditions, drought, and heat stress, 29 different varieties were examined, considerin...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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BMC
2024-01-01
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| Series: | BMC Plant Biology |
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| Online Access: | https://doi.org/10.1186/s12870-023-04704-y |
| _version_ | 1797363483516338176 |
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| author | Ahmed M. Abdelghany Sobhi F. Lamlom Mahmoud Naser |
| author_facet | Ahmed M. Abdelghany Sobhi F. Lamlom Mahmoud Naser |
| author_sort | Ahmed M. Abdelghany |
| collection | DOAJ |
| description | Abstract As climate change increases abiotic stresses like drought and heat, evaluating barley performance under such conditions is critical for maintaining productivity. To assess how barley performs under normal conditions, drought, and heat stress, 29 different varieties were examined, considering agronomic, physiological, and disease-related characteristics. The research was conducted in five environments: two normal environments in 2020/2021 and 2021/2022, two drought stress environments in 2020/2021 and 2021/2022, and one heat stress environment in 2021/2022. The results demonstrated that genotype and environment significantly influenced all traits (p < 0.05), except canopy temperature, while genotype x environment interaction significantly influenced most traits, except total chlorophyll content and canopy temperature. Heat and drought stress environments often resulted in reduced performance for traits like plant height, spike length, grains per spike, and 100-grain weight compared to normal conditions. Based on individual traits, genotypes 07UT-44, 06WA-77, 08AB-09, and 07N6-57 exhibited the highest grain yield (4.1, 3.6, 3.6, and 3.6 t/ha, respectively). Also, these genotypes demonstrated enhanced stability in diverse drought and heat stress conditions, as assessed by the mean performance vs. stability index (Weighted Average of Absolute Scores, WAASB). The multi-trait stability index (MTSI) identified 07UT-44, 07UT-55, 07UT-71, and 08AB-09 as the most stable genotypes in terms of the performance of all traits. The imported lines demonstrated superior performance and stability, highlighting their potential as valuable genetic resources for developing climate-resilient barley. |
| first_indexed | 2024-03-08T16:21:02Z |
| format | Article |
| id | doaj.art-0ae890f2e43d4b5a9f7230c96b6a1570 |
| institution | Directory Open Access Journal |
| issn | 1471-2229 |
| language | English |
| last_indexed | 2024-03-08T16:21:02Z |
| publishDate | 2024-01-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Plant Biology |
| spelling | doaj.art-0ae890f2e43d4b5a9f7230c96b6a15702024-01-07T12:18:42ZengBMCBMC Plant Biology1471-22292024-01-0124111710.1186/s12870-023-04704-yDissecting the resilience of barley genotypes under multiple adverse environmental conditionsAhmed M. Abdelghany0Sobhi F. Lamlom1Mahmoud Naser2Crop Science Department, Faculty of Agriculture, Damanhour UniversityPlant Production Department, Faculty of Agriculture Saba Basha, Alexandria UniversityCrop Science Department, Faculty of Agriculture, Damanhour UniversityAbstract As climate change increases abiotic stresses like drought and heat, evaluating barley performance under such conditions is critical for maintaining productivity. To assess how barley performs under normal conditions, drought, and heat stress, 29 different varieties were examined, considering agronomic, physiological, and disease-related characteristics. The research was conducted in five environments: two normal environments in 2020/2021 and 2021/2022, two drought stress environments in 2020/2021 and 2021/2022, and one heat stress environment in 2021/2022. The results demonstrated that genotype and environment significantly influenced all traits (p < 0.05), except canopy temperature, while genotype x environment interaction significantly influenced most traits, except total chlorophyll content and canopy temperature. Heat and drought stress environments often resulted in reduced performance for traits like plant height, spike length, grains per spike, and 100-grain weight compared to normal conditions. Based on individual traits, genotypes 07UT-44, 06WA-77, 08AB-09, and 07N6-57 exhibited the highest grain yield (4.1, 3.6, 3.6, and 3.6 t/ha, respectively). Also, these genotypes demonstrated enhanced stability in diverse drought and heat stress conditions, as assessed by the mean performance vs. stability index (Weighted Average of Absolute Scores, WAASB). The multi-trait stability index (MTSI) identified 07UT-44, 07UT-55, 07UT-71, and 08AB-09 as the most stable genotypes in terms of the performance of all traits. The imported lines demonstrated superior performance and stability, highlighting their potential as valuable genetic resources for developing climate-resilient barley.https://doi.org/10.1186/s12870-023-04704-yBarley (Hordeum vulgare L.)Stability index (MTSI)Climate resilienceEnvironmental variabilityHeat stress |
| spellingShingle | Ahmed M. Abdelghany Sobhi F. Lamlom Mahmoud Naser Dissecting the resilience of barley genotypes under multiple adverse environmental conditions BMC Plant Biology Barley (Hordeum vulgare L.) Stability index (MTSI) Climate resilience Environmental variability Heat stress |
| title | Dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| title_full | Dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| title_fullStr | Dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| title_full_unstemmed | Dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| title_short | Dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| title_sort | dissecting the resilience of barley genotypes under multiple adverse environmental conditions |
| topic | Barley (Hordeum vulgare L.) Stability index (MTSI) Climate resilience Environmental variability Heat stress |
| url | https://doi.org/10.1186/s12870-023-04704-y |
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