Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage
In the era of global warming, heat stress, particularly at the seedling stage, is a major problem that affects the production and productivity of crops such as mustard that are grown in cooler climates. Nineteen mustard cultivars were exposed to contrasting temperature regimes—20 °C, 30 °C, 40 °C an...
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MDPI AG
2023-03-01
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| Online Access: | https://www.mdpi.com/2223-7747/12/6/1400 |
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| author | Ashwini Sakpal Sangita Yadav Ravish Choudhary Navinder Saini Sujata Vasudev Devendra K. Yadava Sezai Ercişli Romina Alina Marc Shiv K. Yadav |
| author_facet | Ashwini Sakpal Sangita Yadav Ravish Choudhary Navinder Saini Sujata Vasudev Devendra K. Yadava Sezai Ercişli Romina Alina Marc Shiv K. Yadav |
| author_sort | Ashwini Sakpal |
| collection | DOAJ |
| description | In the era of global warming, heat stress, particularly at the seedling stage, is a major problem that affects the production and productivity of crops such as mustard that are grown in cooler climates. Nineteen mustard cultivars were exposed to contrasting temperature regimes—20 °C, 30 °C, 40 °C and a variable range of 25–40 °C—and evaluated for changes in physiological and biochemical parameters at the seedling stage to study their role in heat-stress tolerance. Exposure to heat stress showed detrimental effects on seedling growth as revealed by reduced vigor indices, survival percentages, antioxidant activity and proline content. The cultivars were grouped into tolerant, moderately tolerant and susceptible based on the survival percentage and biochemical parameters. All the conventional and three single-zero cultivars were found to be tolerant and moderately tolerant, respectively, while double-zero cultivars were reckoned to be susceptible except for two cultivars. Significant increases in proline content and catalase and peroxidase activities were found associated with thermo-tolerant cultivars. More efficient antioxidant system activity and proline accumulation were noticed in conventional along with three single-zero (PM-21, PM-22, PM-30) and two double-zero (JC-21, JC-33) cultivars that might have provided better protection to them under heat stress than the remaining one single- and nine double-zero cultivars. Tolerant cultivars also resulted in significantly higher values of most of the yield attributing traits. Heat-stress-tolerant cultivars could easily be selected based on the survival percentage, proline and antioxidants at the seedling stage and included as efficient cultivars in breeding programs. |
| first_indexed | 2024-03-11T06:00:12Z |
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| issn | 2223-7747 |
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| last_indexed | 2024-03-11T06:00:12Z |
| publishDate | 2023-03-01 |
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| series | Plants |
| spelling | doaj.art-640da730ddb24ebea8f3e58f4a8ea1ef2023-11-17T13:23:22ZengMDPI AGPlants2223-77472023-03-01126140010.3390/plants12061400Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling StageAshwini Sakpal0Sangita Yadav1Ravish Choudhary2Navinder Saini3Sujata Vasudev4Devendra K. Yadava5Sezai Ercişli6Romina Alina Marc7Shiv K. Yadav8Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaDivision of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaDivision of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaDivision of Genetics, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaDivision of Genetics, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaICAR-Indian Council of Agricultural Research, Krishi Bhawan, New Delhi 110001, IndiaFaculty of Agriculture, Ataturk University, Erzurum 25240 and HGF Agro, Ata Teknokent, TR-25240 Erzurum, TurkeyFood Engineering Department, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, RomaniaDivision of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, Pusa Campus, New Delhi 110012, IndiaIn the era of global warming, heat stress, particularly at the seedling stage, is a major problem that affects the production and productivity of crops such as mustard that are grown in cooler climates. Nineteen mustard cultivars were exposed to contrasting temperature regimes—20 °C, 30 °C, 40 °C and a variable range of 25–40 °C—and evaluated for changes in physiological and biochemical parameters at the seedling stage to study their role in heat-stress tolerance. Exposure to heat stress showed detrimental effects on seedling growth as revealed by reduced vigor indices, survival percentages, antioxidant activity and proline content. The cultivars were grouped into tolerant, moderately tolerant and susceptible based on the survival percentage and biochemical parameters. All the conventional and three single-zero cultivars were found to be tolerant and moderately tolerant, respectively, while double-zero cultivars were reckoned to be susceptible except for two cultivars. Significant increases in proline content and catalase and peroxidase activities were found associated with thermo-tolerant cultivars. More efficient antioxidant system activity and proline accumulation were noticed in conventional along with three single-zero (PM-21, PM-22, PM-30) and two double-zero (JC-21, JC-33) cultivars that might have provided better protection to them under heat stress than the remaining one single- and nine double-zero cultivars. Tolerant cultivars also resulted in significantly higher values of most of the yield attributing traits. Heat-stress-tolerant cultivars could easily be selected based on the survival percentage, proline and antioxidants at the seedling stage and included as efficient cultivars in breeding programs.https://www.mdpi.com/2223-7747/12/6/1400antioxidantheat/high-temperature stressmustard cultivarsproline contentseedling stagesurvival percentage |
| spellingShingle | Ashwini Sakpal Sangita Yadav Ravish Choudhary Navinder Saini Sujata Vasudev Devendra K. Yadava Sezai Ercişli Romina Alina Marc Shiv K. Yadav Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage Plants antioxidant heat/high-temperature stress mustard cultivars proline content seedling stage survival percentage |
| title | Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage |
| title_full | Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage |
| title_fullStr | Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage |
| title_full_unstemmed | Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage |
| title_short | Heat-Stress-Induced Changes in Physio-Biochemical Parameters of Mustard Cultivars and Their Role in Heat Stress Tolerance at the Seedling Stage |
| title_sort | heat stress induced changes in physio biochemical parameters of mustard cultivars and their role in heat stress tolerance at the seedling stage |
| topic | antioxidant heat/high-temperature stress mustard cultivars proline content seedling stage survival percentage |
| url | https://www.mdpi.com/2223-7747/12/6/1400 |
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