INFLUENCE OF BRASSINOESTEROID IN INTERACTION WITH Rhizophagus intraradices IN THE ACCLIMATIZATION OF BANANA CLONE

The research was carried out in the greenhouse to determine the acclimatization response in banana seedlings (Musa sp. cv. Great dwarf) developed in vitro with the hormone brassinolide (Br) at different frequencies interacting with Rhizophagus intradices. In the acclimation stage, 10 cm high in vitro plants were planted on Turba + Agrolita substrate (2:1 v/v). The treatments were R. intraradices, R. intraradices + Br (28 d), Br (14 d), Br (28 d), Br (42 d), and control. The variables evaluated were plant height, stem thickness, leaf number, dry matter, leaf area, and survival using ANOVA method to compare the effects between treatments. The results of the acclimatization stage indicate that Musa sp. plants with R. intraradices and Br application with a frequency of 28 d registered an increase in morphophysiological components and greater survival. The amount and frequency of Br application helped to induce favorable differential responses of the Musa sp. cv. Great dwarf clone, highlighting the synergistic effect of the endomycorrhizal fungus with Br.