The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes
Wheat is an important crop, used as staple food in numerous countries around the world. However, wheat productivity is low in the developing world due to several biotic and abiotic stresses, particularly drought stress. Non-availability of drought-tolerant wheat genotypes at different growth stages...
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| Format: | Article |
| Language: | English |
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Public Library of Science
2022
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| Online Access: | http://psasir.upm.edu.my/id/eprint/95469/ http://psasir.upm.edu.my/id/eprint/95469/1/The%20impact%20of%20PEG-induced%20drought%20stress%20on%20seed%20germination%20and%20seedling%20.pdf |
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| author | Mahpara, Shahzadi Zainab, Aleena Ullah, Rehmat Kausar, Salma Bilal, Muhammad Latif, Muhammad Imran Arif, Muhammad Akhtar, Imran Al-Hashimi, Abdulrahman Elshikh, Mohamed Soliman Zivcak, Marek Tan, Ali Kee Zuan |
| author_facet | Mahpara, Shahzadi Zainab, Aleena Ullah, Rehmat Kausar, Salma Bilal, Muhammad Latif, Muhammad Imran Arif, Muhammad Akhtar, Imran Al-Hashimi, Abdulrahman Elshikh, Mohamed Soliman Zivcak, Marek Tan, Ali Kee Zuan |
| author_sort | Mahpara, Shahzadi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Wheat is an important crop, used as staple food in numerous countries around the world. However, wheat productivity is low in the developing world due to several biotic and abiotic stresses, particularly drought stress. Non-availability of drought-tolerant wheat genotypes at different growth stages is the major constraint in improving wheat productivity in the developing world. Therefore, screening/developing drought-tolerant genotypes at different growth stages could improve the productivity of wheat. This study assessed seed germination and seedling growth of eight wheat genotypes under polyethylene glycol (PEG)-induced stress. Two PEG-induced osmotic potentials (i.e., -0.6 and -1.2 MPa) were included in the study along with control (0 MPa). Wheat genotypes included in the study were ‘KLR-16’, ‘B6’, ‘J10’, ‘716’, ‘A12’, ‘Seher’, ‘KTDH-16’, and ‘J4’. Data relating to seed germination percentage, root and shoot length, fresh and dry weight of roots and shoot, root/shoot length ratio and chlorophyll content were recorded. The studied parameters were significantly altered by individual and interactive effects of genotypes and PEG-induced osmotic potentials. Seed germination and growth parameters were reduced by osmotic potentials; however, huge differences were noted among genotypes. A reduction of 32.83 to 53.50% was recorded in seed germination, 24.611 to 47.75% in root length, 37.83 to 53.72% in shoot length, and 53.35 to 65.16% in root fresh weight. The genotypes, ‘J4’, ‘KLR-16’ and ‘KTDH-16’, particularly ‘J4’ better tolerated increasing osmotic potentials compared to the rest of the genotypes included in the study. Principal component analysis segregated these genotypes from the rest of the genotypes included in the study indicated that these can be used in the future studies to improve the drought tolerance of wheat crop. The genotype ‘J4’ can be used as a breeding material to develop drought resistant wheat genotypes. |
| first_indexed | 2025-11-15T13:12:43Z |
| format | Article |
| id | upm-95469 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T13:12:43Z |
| publishDate | 2022 |
| publisher | Public Library of Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-954692022-12-21T03:13:21Z http://psasir.upm.edu.my/id/eprint/95469/ The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes Mahpara, Shahzadi Zainab, Aleena Ullah, Rehmat Kausar, Salma Bilal, Muhammad Latif, Muhammad Imran Arif, Muhammad Akhtar, Imran Al-Hashimi, Abdulrahman Elshikh, Mohamed Soliman Zivcak, Marek Tan, Ali Kee Zuan Wheat is an important crop, used as staple food in numerous countries around the world. However, wheat productivity is low in the developing world due to several biotic and abiotic stresses, particularly drought stress. Non-availability of drought-tolerant wheat genotypes at different growth stages is the major constraint in improving wheat productivity in the developing world. Therefore, screening/developing drought-tolerant genotypes at different growth stages could improve the productivity of wheat. This study assessed seed germination and seedling growth of eight wheat genotypes under polyethylene glycol (PEG)-induced stress. Two PEG-induced osmotic potentials (i.e., -0.6 and -1.2 MPa) were included in the study along with control (0 MPa). Wheat genotypes included in the study were ‘KLR-16’, ‘B6’, ‘J10’, ‘716’, ‘A12’, ‘Seher’, ‘KTDH-16’, and ‘J4’. Data relating to seed germination percentage, root and shoot length, fresh and dry weight of roots and shoot, root/shoot length ratio and chlorophyll content were recorded. The studied parameters were significantly altered by individual and interactive effects of genotypes and PEG-induced osmotic potentials. Seed germination and growth parameters were reduced by osmotic potentials; however, huge differences were noted among genotypes. A reduction of 32.83 to 53.50% was recorded in seed germination, 24.611 to 47.75% in root length, 37.83 to 53.72% in shoot length, and 53.35 to 65.16% in root fresh weight. The genotypes, ‘J4’, ‘KLR-16’ and ‘KTDH-16’, particularly ‘J4’ better tolerated increasing osmotic potentials compared to the rest of the genotypes included in the study. Principal component analysis segregated these genotypes from the rest of the genotypes included in the study indicated that these can be used in the future studies to improve the drought tolerance of wheat crop. The genotype ‘J4’ can be used as a breeding material to develop drought resistant wheat genotypes. Public Library of Science 2022-02-11 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/95469/1/The%20impact%20of%20PEG-induced%20drought%20stress%20on%20seed%20germination%20and%20seedling%20.pdf Mahpara, Shahzadi and Zainab, Aleena and Ullah, Rehmat and Kausar, Salma and Bilal, Muhammad and Latif, Muhammad Imran and Arif, Muhammad and Akhtar, Imran and Al-Hashimi, Abdulrahman and Elshikh, Mohamed Soliman and Zivcak, Marek and Tan, Ali Kee Zuan (2022) The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes. PLoS One, 17. pp. 1-15. ISSN 1932-6203 https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0262937 10.1371/journal.pone.0262937 |
| spellingShingle | Mahpara, Shahzadi Zainab, Aleena Ullah, Rehmat Kausar, Salma Bilal, Muhammad Latif, Muhammad Imran Arif, Muhammad Akhtar, Imran Al-Hashimi, Abdulrahman Elshikh, Mohamed Soliman Zivcak, Marek Tan, Ali Kee Zuan The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title | The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title_full | The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title_fullStr | The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title_full_unstemmed | The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title_short | The impact of PEG-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| title_sort | impact of peg-induced drought stress on seed germination and seedling growth of different bread wheat genotypes |
| url | http://psasir.upm.edu.my/id/eprint/95469/ http://psasir.upm.edu.my/id/eprint/95469/ http://psasir.upm.edu.my/id/eprint/95469/ http://psasir.upm.edu.my/id/eprint/95469/1/The%20impact%20of%20PEG-induced%20drought%20stress%20on%20seed%20germination%20and%20seedling%20.pdf |