Unzilaturrohmah, Lingga (2025) Kajian Konsentrasi PEG (Polyethilen Glycol) 6000 dan Dosis Pupuk KCl terhadap Pertumbuhan dan Hasil Bawang Merah (Allium ascalonicum L.) Varietas Tajuk. Other thesis, UPN Jatim.
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Abstract
ABSTRACT Shallots (Allium ascalonicum L.) are a non-substitutable and highly strategic horticultural commodity that influences inflation in Indonesia. Declining shallot production during the dry season is caused by several factors, including drought stress and excessively high light intensity, which leads to high air temperatures.Study of PEG (Polyethylene Glycol) 6000 Concentration and KCl Fertilizer Dose on the Growth and Yield of Shallots (Allium ascalonicum L.) Tajuk Variety. This study aimed to investigate the ef ects of Polyethylene Glycol (PEG) 6000 concentration and KCl fertilizer dose on the growth and yield of shallots (Allium ascalonicum L.) Tajuk variety, as well as their interaction. Shallots are a strategic horticultural commodity whose production is often hampered by drought stress due to climate change. PEG 6000 was used as a drought stress simulator, while KCl fertilizer plays a role in regulating osmotic pressure and stomatal opening in plants. The study employed a factorial design with a Completely Randomized Design (CRD), consisting of 5 levels of PEG concentration (0%, 5%, 10%, 15%, and 20%) and 4 levels of KCl fertilizer dose (1 g/polybag, 1.3 g/polybag, 1.6 g/polybag, and 2 g/polybag), with 3 replications. Parameters observed included plant height, number of leaves per clump, fresh and dry bulb weight per clump, number of bulbs per clump, average bulb weight, bulb diameter, bulb length, percentage of open stomata, and plant wilting level. The combination of 5% PEG concentration and 1.3 g/plant KCl fertilizer dose showed a significant interaction on shallot plant height at 42 and 49 Days After Planting (DAP), resulting in the highest average plant height compared to other treatments A 5% PEG concentration allowed shallot plants to grow and develop well in both vegetative and generative phases, including plant height, number of leaves, fresh and dry bulb weight, number of bulbs, average bulb weight, and bulb diameter. Higher PEG concentrations (especially 20%) significantly reduced all growth and yield parameters, as well as decreasing the percentage of open stomata and increasing the wilting level. A KCl fertilizer dose of 1.3 g/plant had a significant and best ef ect on most growth and yield parameters of shallot plants, such as plant height at 21, 28, and 35 DAP, number of leaves per clump, fresh bulb weight per clump, dry bulb weight per clump, number of bulbs per clump, and average bulb weight. This dose also helped maintain a larger stomatal opening during the day. The conclusion of this study is that the combination of 5% PEG and 1.3 g/plant KCl fertilizer dose provides the best results for shallot growth and yield under simulated drought stress conditions. It is recommended to use a KCl fertilizer dose of 1.3 g/plant for optimal results in shallot plants experiencing drought stress with 5% PEG concentration. Keywords: Shallots, PEG 6000, KCl, Drought Stress.
| Item Type: | Thesis (Other) | ||||||||||||
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| Subjects: | S Agriculture > S Agriculture (General) | ||||||||||||
| Divisions: | Faculty of Agriculture > Departement of Agritechnology | ||||||||||||
| Depositing User: | Lingga Unzilaturrohmah | ||||||||||||
| Date Deposited: | 25 Jul 2025 07:44 | ||||||||||||
| Last Modified: | 25 Jul 2025 07:44 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/40869 |
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