Performance of Mango Trees under the Spraying of Some Biostimulants
Sustainability(2023)
Abstract
Ensuring the sustainability of horticultural production is crucial to meeting consumer demand, and the most effective approach involves enhancing the efficient utilization of resources to support the production of wholesome foods. Plant biostimulants are substances defined by their ability, when applied to plants or the rhizosphere, to enhance root development, resulting in heightened vigor. They facilitate the more effective uptake and translocation of nutrients and water throughout the growing season. Additionally, these biostimulants contribute to improved plant health and quality by supplying essential nutrients that stimulate overall growth and metabolic processes. Therefore, this study was performed to examine the impact of some biostimulants on the possibility of improving vegetative growth, yield, fruit quality, and the leaf mineral content of mango cv. Keitt. Mango trees were sprayed with Putrescine at 25, 50, and 100 mg/L; Brassinosteroids at 0.5, 1, and 2 mg/L; and Chitosan at 500, 1000, and 1500 mg/L four times starting from mid-April, with three-week intervals during the seasons of 2021 and 2022. The results showed that the foliar application of these three biostimulants improved the growth, yield, and fruit quality of mango trees as opposed to untreated trees during two study seasons. The results also showed that the foliar application of 1500 mg/L of Chit, 2 mg/L of Brs, and 100 mg/L of Put gave the highest increments for inducing the number, length, and thickness of shoots, leaf area, and leaf chlorophyll over the other applied treatments. In addition, it also heightened the fruit set, fruit yield, and the fruit’s physical and chemical characteristics in both experimental seasons.
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Key words
brassinosteroids,chitosan,fruit quality,Mangifera indica,nutrition,putrescine,yield
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