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Phenology Dynamics: Flowering and Fruit Development of Prabu Bestari Grape Variety in Denpasar
Abstract
This research aimed to identify the critical phenological stages and establish harvest quality standards for the local superior grape variety, 'Prabu Bestari', given the limited scientific data available for optimizing lowland cultivation. The study was conducted at the Faculty of Agriculture's Experimental Garden, Udayana University, at an elevation of (0–9) meters above sea level (masl) from June to October 2024. Floral induction was achieved through environmental and nutritional manipulation, commencing with total water stress for 30 days before pruning, followed by the application of 50g NPK fertilizer (with a high P and K ratio) and a subsequent water shock. Production pruning (cane pruning) was performed by retaining 3-5 buds per spur. This research aimed to identify the critical phenological stages and establish harvest quality standards for the local superior grape variety, 'Prabu Bestari', given the limited scientific data available for optimizing lowland cultivation. The study was conducted at the Faculty of Agriculture's Experimental Garden, Udayana University, at an elevation of 0–9 meters above sea level (masl) from June to October 2024. Floral induction was achieved through environmental and nutritional manipulation, commencing with total water stress for 30 days before pruning, followed by the application of 50 g NPK fertilizer (with a high P and K ratio) and a subsequent water shock. Production pruning (cane pruning) was performed by retaining 3 to 5 buds per spur.
Keywords: Floral Induction; Lowlands; Phenology; Prabu Bestari Grape; Vitis vinifera
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DOI: https://doi.org/10.20961/jbb.v5i2.109980
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