COBRE E FITORMÔNIOS NO CRESCIMENTO E PRODUTIVIDADE DO FEIJOEIRO

Abstract

The common bean (Phaseolus vulgaris L.) is a legume with great global importance as an important source of proteins, vitamins and minerals. It presents a great challenge to increase its productivity while maintaining environmental sustainability and efficient use of resources, which encourages researchers to explore innovative management techniques, such as the use of nutrients and phytohormones. The objective of the research investigates how copper and different phytohormones influence the vegetative growth of the common bean (Phaseolus vulgaris L.) Cv. IPR Urutau, focusing on controlled growth and high productivity. The study was carried out through controlled experiments at Fazenda Sementes Marambaia, where different treatments such as copper and phytohormones were applied, followed by analyses of plant development and final grain production. Regarding photosynthetic pigments, the beans in the vegetative stage obtained better performances for the treatments with Propiconazole and Mantus®. Only the A:B ratio variable was lower for the treatment with Propiconazole. In the reproductive stage, chlorophyll A and total chlorophyll showed better results for the treatments with propiconazole and cytokinin. For the photosynthesis analyses, there was no difference between the treatments. For the analyses of dry mass, pods and number of stems, no difference was found between the treatments tested. The treatment with Mantus® obtained better results for productivity, weight of a thousand seeds and agronomic efficiency.