Organic acids allied with paclobutrazol modify mango tree ‘Keitt’ flowering

Abstract

The objective of this study was to evaluate the effectiveness of fulvic acids and free amino acids on paclobutrazol in the flowering of mango ‘Keitt’ cultivated in the semi-arid region. The experiment was performed from 2017 to 2018 simultaneously in two orchards with the same plants and management characteristics, located in Cabrobó, State of Pernambuco, Brazil. The experimental design was randomized blocks with four treatments and five replications of four trees. The treatments were: T1: paclobutrazol + water (control); T2: paclobutrazol + fulvic acids; T3: paclobutrazol + amino acids; T4: paclobutrazol + fulvic acids + amino acids. Applying fulvic acids plus paclobutrazol increased gas exchange efficiency, favoring flowering and fruiting. In contrast, amino acids alone or with fulvic acids decreased the flowering efficiency.

Paclobutrazol as a strategy to induce reproductive precocity in sour passion fruit

“…For Mango culture the PBZ is a regulator widely used in the flowering management (CAVALCANTE et al, 2020;SILVA et al, 2022). Currently, one of our research lines is to study the growth regulators in the seedlings species spread of the genus Passiflora in order to improve the quality and to induce resistance mechanisms to the main biotic and abiotic stresses (TEIXEIRA et al, 2019;TEIXEIRA et al, 2021;TEIXEIRA et al, 2023).…”