Physiological responses of bio-silica-treated oil palm seedlings to drought stress
Silica (Si) in the form of soluble silicic acid [H4SiO4] was an element that makes plants more resistant to drought stress through biochemical or molecular processes and contributing to growth stimulation under biotic and abiotic stress conditions. The objective of this study was to determine the re...
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| Format: | Article |
| Language: | English |
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indonesian research institute for biotechnology and bioindustry
2019-04-01
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| Series: | Menara Perkebunan |
| Subjects: | |
| Online Access: | http://mp.iribb.org/index.php/mpjurnal/article/view/306 |
| _version_ | 1818300458852155392 |
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| author | Dian Mutiara Amanah Nurhaimi-Haris Laksmita Prima Santi |
| author_facet | Dian Mutiara Amanah Nurhaimi-Haris Laksmita Prima Santi |
| author_sort | Dian Mutiara Amanah |
| collection | DOAJ |
| description | Silica (Si) in the form of soluble silicic acid [H4SiO4] was an element that makes plants more resistant to drought stress through biochemical or molecular processes and contributing to growth stimulation under biotic and abiotic stress conditions. The objective of this study was to determine the response of oil palm seedlings to drought stress by the bio-Si application. The experiment was arranged in complete random design (CRD) with ten replicates. Bio-Si was developed in solid and liquid forms with a dissolved Si content at least 10% (w/v). The eight combinations of solid bio-Si application per seedling were: (i) blank (without fertilizers), (ii) 5 g NPK 15-15-15, (iii) 5 g NPK 15-15-15 + 109 cfu of Si-solubilizing microbes (SSM), (iv-viii) 5 g NPK 15-15-15 + 2.5; 5.0; 7.5; 10 g bio-Si; and
5 g NPK 15-15-15 + 5 g Na2SiO3. Meanwhile, liquid bio-Si application per seedling were: (i) blank (without fertilizers), (ii) 5 g NPK 15-15-15, (iii) 5 g NPK 15-15-15 + 109 cfu of SSM, (iv-viii) 5 g NPK 15-15-15 + 25 mL; 50 mL; 75 mL; 100 mL bio-Si; and 5 g NPK 15-15-15 + 50 mL Na2SiO3. Drought stress tolerance was analyzed by using proline concentration, nitrate reductase activity (NRA), chlorophyll content, and stomatal closure in the leave of oil palm seedlings. Based on the physiological response, this research indicates that bio-Si application could induce seedling tolerance to drought stress. The bio-Si treatments
gave a positive response of proline concentration, nitrate reductase activity (NRA), chlorophyll content, and stomatal closure. The doses of 5 g NPK 15-15-15 + 7.5 g solid bio-Si and 5 g NPK 15-15-15 + 75 mL liquid bio-Si per seedling were a recommended to increase oil palm seedlings tolerance to drought stress. |
| first_indexed | 2024-12-13T05:07:27Z |
| format | Article |
| id | doaj.art-5f6c473f292a4ce384fb87b1dd56131b |
| institution | Directory Open Access Journal |
| issn | 0125-9318 1858-3768 |
| language | English |
| last_indexed | 2024-12-13T05:07:27Z |
| publishDate | 2019-04-01 |
| publisher | indonesian research institute for biotechnology and bioindustry |
| record_format | Article |
| series | Menara Perkebunan |
| spelling | doaj.art-5f6c473f292a4ce384fb87b1dd56131b2022-12-21T23:58:37Zengindonesian research institute for biotechnology and bioindustryMenara Perkebunan0125-93181858-37682019-04-01871203010.22302/iribb.jur.mp.v87i1.306Physiological responses of bio-silica-treated oil palm seedlings to drought stressDian Mutiara Amanah0Nurhaimi-Haris1Laksmita Prima Santi2Indonesian Research Institutes for Biotechnology and Bioindustry Indonesian Research Institutes for Biotechnology and BioindustryIndonesian Research Institutes for Biotechnology and Bioindustry Silica (Si) in the form of soluble silicic acid [H4SiO4] was an element that makes plants more resistant to drought stress through biochemical or molecular processes and contributing to growth stimulation under biotic and abiotic stress conditions. The objective of this study was to determine the response of oil palm seedlings to drought stress by the bio-Si application. The experiment was arranged in complete random design (CRD) with ten replicates. Bio-Si was developed in solid and liquid forms with a dissolved Si content at least 10% (w/v). The eight combinations of solid bio-Si application per seedling were: (i) blank (without fertilizers), (ii) 5 g NPK 15-15-15, (iii) 5 g NPK 15-15-15 + 109 cfu of Si-solubilizing microbes (SSM), (iv-viii) 5 g NPK 15-15-15 + 2.5; 5.0; 7.5; 10 g bio-Si; and 5 g NPK 15-15-15 + 5 g Na2SiO3. Meanwhile, liquid bio-Si application per seedling were: (i) blank (without fertilizers), (ii) 5 g NPK 15-15-15, (iii) 5 g NPK 15-15-15 + 109 cfu of SSM, (iv-viii) 5 g NPK 15-15-15 + 25 mL; 50 mL; 75 mL; 100 mL bio-Si; and 5 g NPK 15-15-15 + 50 mL Na2SiO3. Drought stress tolerance was analyzed by using proline concentration, nitrate reductase activity (NRA), chlorophyll content, and stomatal closure in the leave of oil palm seedlings. Based on the physiological response, this research indicates that bio-Si application could induce seedling tolerance to drought stress. The bio-Si treatments gave a positive response of proline concentration, nitrate reductase activity (NRA), chlorophyll content, and stomatal closure. The doses of 5 g NPK 15-15-15 + 7.5 g solid bio-Si and 5 g NPK 15-15-15 + 75 mL liquid bio-Si per seedling were a recommended to increase oil palm seedlings tolerance to drought stress.http://mp.iribb.org/index.php/mpjurnal/article/view/306bio-sichlorophyllnitrate reductase activity |
| spellingShingle | Dian Mutiara Amanah Nurhaimi-Haris Laksmita Prima Santi Physiological responses of bio-silica-treated oil palm seedlings to drought stress Menara Perkebunan bio-si chlorophyll nitrate reductase activity |
| title | Physiological responses of bio-silica-treated oil palm seedlings to drought stress |
| title_full | Physiological responses of bio-silica-treated oil palm seedlings to drought stress |
| title_fullStr | Physiological responses of bio-silica-treated oil palm seedlings to drought stress |
| title_full_unstemmed | Physiological responses of bio-silica-treated oil palm seedlings to drought stress |
| title_short | Physiological responses of bio-silica-treated oil palm seedlings to drought stress |
| title_sort | physiological responses of bio silica treated oil palm seedlings to drought stress |
| topic | bio-si chlorophyll nitrate reductase activity |
| url | http://mp.iribb.org/index.php/mpjurnal/article/view/306 |
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