Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature
High temperature is a limiting factor in the seed germination of most crops. This study evaluated the effects of hydropriming at 6, 12 and 18 h on germination performance and seedling establishment of sunflower seeds under high air temperature. Results showed that germination of unprimed seeds was s...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2021-09-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-202109-0001_impact-of-hydropriming-on-germination-and-seedling-establishment-of-sunflower-seeds-at-elevated-temperature.php |
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| author | Rose L. Catiempo Songsin Photchanachai Emma Ruth V. Bayogan Chalermchai Wongs-Aree |
| author_facet | Rose L. Catiempo Songsin Photchanachai Emma Ruth V. Bayogan Chalermchai Wongs-Aree |
| author_sort | Rose L. Catiempo |
| collection | DOAJ |
| description | High temperature is a limiting factor in the seed germination of most crops. This study evaluated the effects of hydropriming at 6, 12 and 18 h on germination performance and seedling establishment of sunflower seeds under high air temperature. Results showed that germination of unprimed seeds was suppressed at an average elevated temperature of 44.3 °C (range of 39.3 °C to 53.3 °C) for eighteen days indicated by an increased lag time to onset of germination and decreased germination percentage. Conversely, priming seeds for 12 h to 18 h increased the germination percentage, time to 50% seedling emergence (T50), germination index and vigour index. Seedlings emerging from primed seeds exhibited uniform 16-day old seedlings (18 days after sowing), leading to greater seedling dry weight and shoot length as compared to unprimed seeds. Conversely, the total chlorophyll content remain unchanged for all seeds. The significant increase in the shoot parameters suggested a positive association with priming and stress tolerance. The priming duration of 12 h to 18 h showed improvement at elevated air temperature through the reduction of ungerminated seeds and increase in seedling growth characteristics. |
| first_indexed | 2024-04-10T08:07:26Z |
| format | Article |
| id | doaj.art-65d6ac28b8c3428d84b9995b4b278b10 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:07:26Z |
| publishDate | 2021-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-65d6ac28b8c3428d84b9995b4b278b102023-02-23T03:47:00ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682021-09-0167949149810.17221/163/2021-PSEpse-202109-0001Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperatureRose L. Catiempo0Songsin Photchanachai1Emma Ruth V. Bayogan2Chalermchai Wongs-Aree3Division of Postharvest Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, ThailandDivision of Postharvest Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, ThailandDepartment of Biological Sciences and Environmental Studies, College of Science and Mathematics, University of the Philippines Mindanao, Davao City, PhilippinesDivision of Postharvest Technology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, ThailandHigh temperature is a limiting factor in the seed germination of most crops. This study evaluated the effects of hydropriming at 6, 12 and 18 h on germination performance and seedling establishment of sunflower seeds under high air temperature. Results showed that germination of unprimed seeds was suppressed at an average elevated temperature of 44.3 °C (range of 39.3 °C to 53.3 °C) for eighteen days indicated by an increased lag time to onset of germination and decreased germination percentage. Conversely, priming seeds for 12 h to 18 h increased the germination percentage, time to 50% seedling emergence (T50), germination index and vigour index. Seedlings emerging from primed seeds exhibited uniform 16-day old seedlings (18 days after sowing), leading to greater seedling dry weight and shoot length as compared to unprimed seeds. Conversely, the total chlorophyll content remain unchanged for all seeds. The significant increase in the shoot parameters suggested a positive association with priming and stress tolerance. The priming duration of 12 h to 18 h showed improvement at elevated air temperature through the reduction of ungerminated seeds and increase in seedling growth characteristics.https://pse.agriculturejournals.cz/artkey/pse-202109-0001_impact-of-hydropriming-on-germination-and-seedling-establishment-of-sunflower-seeds-at-elevated-temperature.phphelianthus annuus l.stress factorheathigh-temperature conditionclimate change |
| spellingShingle | Rose L. Catiempo Songsin Photchanachai Emma Ruth V. Bayogan Chalermchai Wongs-Aree Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature Plant, Soil and Environment helianthus annuus l. stress factor heat high-temperature condition climate change |
| title | Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| title_full | Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| title_fullStr | Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| title_full_unstemmed | Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| title_short | Impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| title_sort | impact of hydropriming on germination and seedling establishment of sunflower seeds at elevated temperature |
| topic | helianthus annuus l. stress factor heat high-temperature condition climate change |
| url | https://pse.agriculturejournals.cz/artkey/pse-202109-0001_impact-of-hydropriming-on-germination-and-seedling-establishment-of-sunflower-seeds-at-elevated-temperature.php |
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