USO DE BACTÉRIAS PROMOTORAS DE CRESCIMENTO EM CANA-DEAÇÚCAR: UMA ABORDAGEM PARA A SUSTENTABILIDADE DA CULTURA

Abstract

Sugarcane has been present in the country since the 16th century. It is a culture that has great economic importance for Brazil due to its diversified by-products and the high rate of domestic consumption and exports. In the 2019 crop, there was a significant yield reduction of sugarcane caused by both, abiotic and biotic stress. In this scenario, there is a demand to increase yield with least possible environmental impact, and the search for biotechnological alternatives aimed at the crop sustainability is crucial. For this, several studies with innovations have been carried out, with emphasis on the use of plant growth promoting bacteria (BGPB). BGPBs correspond to a group of microorganisms beneficial to the plant, with the ability to colonize various plant tissues. In order to replace traditional fertilization methods, promote crop productivity, or even assist in the plant response to environmental stress, several bacterial strains have been tested in different cultures and many of them are already presented in the form of commercial products. The present work is a review in order to cooperate theoretically with the identification of benefits and limitations of PGPB application in sugarcane crop in Brazil, addressing the main direct and indirect mechanisms, with highlight the challenges of scaling in vitro results for use in crops and the product market in Brazil.