Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions
Rice is an important cereal consumed globally, however, poor germination and non-uniform seedling establishment are major causes of low rice yield in water-limiting arid ecosystems. Seed priming study with KNO3, SA and SiO2 to enhance germination and seedling growth was carried out with the objectiv...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor and Francis
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/88812/1/ABSTRACT.pdf |
| _version_ | 1796982030484897792 |
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| author | Ali, Lawan Gana Nulit, Rosimah Ibrahim, Mohd Hafiz Yong, Christina Seok Yien |
| author_facet | Ali, Lawan Gana Nulit, Rosimah Ibrahim, Mohd Hafiz Yong, Christina Seok Yien |
| author_sort | Ali, Lawan Gana |
| collection | UPM |
| description | Rice is an important cereal consumed globally, however, poor germination and non-uniform seedling establishment are major causes of low rice yield in water-limiting arid ecosystems. Seed priming study with KNO3, SA and SiO2 to enhance germination and seedling growth was carried out with the objectives of (1) to determine the effects of seed priming on germination and early seedling growth, and (2) to evaluate effects of seed priming on physiological growth characteristics of rice seedling under drought stress simulated by polyethylene glycol (PEG6000). Under well-watered conditions, rice seeds were primed with concentrations of KNO3 (2.5%, 5%, 10%, 15% and 20%), SiO2 (2.5%, 3%, 3.5%, 4% and 4.5%) and SA (0.5, 1, 1.5, 2, and 2.5 mM). While under drought stress, rice seeds were primed with 2.5% and 5% KNO3; 3% and 3.5% SiO2 and 1 mM and 2.5 mM SA. The results showed that all primed rice seedlings under both well-watered and drought stress conditions had significantly enhanced rice seedling growth parameters of seedling length, plumule length, root length, seedling vigor, seedling biomass and germination index and shorter germination time compared to unprimed controls. However, seed priming with concentrations of 2.5% and 5% KNO3; 3% and 3.5% SiO2, and 1 mM and 2.5 mM SA increased rice seedling growth parameters studied better than other concentrations. However, germination percentage was not significantly affected. Thus, priming of FARO44 rice with these concentrations of chemicals is recommended for fast germination, seedling growth and emergence in arid ecosystems. |
| first_indexed | 2024-03-06T10:46:22Z |
| format | Article |
| id | upm.eprints-88812 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:46:22Z |
| publishDate | 2020 |
| publisher | Taylor and Francis |
| record_format | dspace |
| spelling | upm.eprints-888122021-11-03T04:25:36Z http://psasir.upm.edu.my/id/eprint/88812/ Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions Ali, Lawan Gana Nulit, Rosimah Ibrahim, Mohd Hafiz Yong, Christina Seok Yien Rice is an important cereal consumed globally, however, poor germination and non-uniform seedling establishment are major causes of low rice yield in water-limiting arid ecosystems. Seed priming study with KNO3, SA and SiO2 to enhance germination and seedling growth was carried out with the objectives of (1) to determine the effects of seed priming on germination and early seedling growth, and (2) to evaluate effects of seed priming on physiological growth characteristics of rice seedling under drought stress simulated by polyethylene glycol (PEG6000). Under well-watered conditions, rice seeds were primed with concentrations of KNO3 (2.5%, 5%, 10%, 15% and 20%), SiO2 (2.5%, 3%, 3.5%, 4% and 4.5%) and SA (0.5, 1, 1.5, 2, and 2.5 mM). While under drought stress, rice seeds were primed with 2.5% and 5% KNO3; 3% and 3.5% SiO2 and 1 mM and 2.5 mM SA. The results showed that all primed rice seedlings under both well-watered and drought stress conditions had significantly enhanced rice seedling growth parameters of seedling length, plumule length, root length, seedling vigor, seedling biomass and germination index and shorter germination time compared to unprimed controls. However, seed priming with concentrations of 2.5% and 5% KNO3; 3% and 3.5% SiO2, and 1 mM and 2.5 mM SA increased rice seedling growth parameters studied better than other concentrations. However, germination percentage was not significantly affected. Thus, priming of FARO44 rice with these concentrations of chemicals is recommended for fast germination, seedling growth and emergence in arid ecosystems. Taylor and Francis 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/88812/1/ABSTRACT.pdf Ali, Lawan Gana and Nulit, Rosimah and Ibrahim, Mohd Hafiz and Yong, Christina Seok Yien (2020) Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions. Journal of Plant Nutrition, 43 (11). 1579 - 1593. ISSN 0190-4167; ESSN: 1532-4087 https://www.tandfonline.com/doi/abs/10.1080/01904167.2020.1739298?journalCode=lpla20 10.1080/01904167.2020.1739298 |
| spellingShingle | Ali, Lawan Gana Nulit, Rosimah Ibrahim, Mohd Hafiz Yong, Christina Seok Yien Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title | Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title_full | Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title_fullStr | Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title_full_unstemmed | Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title_short | Enhancement of germination and early seedling growth of rice (Oryza sativa) var. FARO44 by seed priming under normal and drought stressed conditions |
| title_sort | enhancement of germination and early seedling growth of rice oryza sativa var faro44 by seed priming under normal and drought stressed conditions |
| url | http://psasir.upm.edu.my/id/eprint/88812/1/ABSTRACT.pdf |
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