Effect of Pinching and foliar application by benzyladenine and gibberellic acid on vegetative growth and chemical composition of Jatropha multifida plants | ||||
| Alexandria Journal of Agricultural Sciences | ||||
| Articles in Press, Accepted Manuscript, Available Online from 06 July 2025 | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/alexja.2025.379025.1138 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Nader El-Shanhorey  ; Amira A. Yousef
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| Botanical Gardens Research Department, Horticultural Research Institute, ARC, Alexandria, Egypt | ||||
| Abstract | ||||
| During the 2023 and 2024 growing seasons, this study was conducted at the nursery of the Department of Flowers, Ornamental Plants, and Landscape Gardens, Faculty of Agriculture, Alexandria University, Alexandria, Egypt. This study aimed to test the effect of applying foliar increasing the quality and performance of Jatropha multifida L. plants. The J. multifida seedlings were planted individually in plastic pots 30 cm in diameter. The plants were sprayed with gibberellic acid at the concentrations of 500, 1000, and 1500 mg/l and benzyladenine at the concentrations of 200, 250, and 300 mg/l, and the interaction between them. Gibberellic acid at 1000 mg/l and benzyladenine at 300 mg/l, when sprayed together, significantly increased plant height, number of leaves per plant, dry weight, area of leaves, stem diameter, dry weight, number of branches per plant, root length, and dry weight. However, the highest levels of chlorophyll, carbohydrates, nitrogen, phosphorus, and potassium were recorded in the leaves sprayed with a combination of gibberellic acid (1000 mg/l) and benzyladenine (250 mg/l). | ||||
| Keywords | ||||
| Jatropha multifida; Gibberellic acid; Benzyladenine; Pinching | ||||
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