‘Kent’ mango grown in the semiarid region of Brazil under different concentrations of melissyl alcohol

Mangueira ‘kent’ cultivada no semiárido brasileiro sob diferentes concentrações de melissil álcool

Abstract:

Abstract: The imposition of water deficit in mango cultivation, combined with branch maturation, favors the accumulation of essential reserves for flowering. However, simultaneous abiotic stresses such as high temperatures and low humidity, disrupt crucial physiological processes. Alternatives have been sought to mitigate these adverse effects in plants exposed to unfavorable conditions. In this scenario, this study evaluated the physiological performance of ‘Kent’ mango trees in the Brazilian semiarid region treated with triacontanol. The experiment was conducted over two consecutive crop years (2018 and 2019), using a randomized block design with five treatments and four replications, by evaluating four plants per plot. The treatments consisted of five concentrations of triacontanol: 0.00 (Control), 3.75, 7.50, 11.25, and 15.0 ppb. The product containing the active ingredient triacontanol was Revigor® at a concentration of 0.05 g L^-1 (50 ppm). The application of Triacontanol affects photosynthetic pigments, increases the level of total soluble carbohydrates in leaves and branches, positively influences the number of panicles and leads to productivity increases in irrigated ‘Kent’ mango trees grown in the semiarid conditions of Pernambuco, with oscillations between factors and between harvests. There was an increase in productivity of 64.91% (estimated concentration - 10.51 ppb) in the 2019 harvest.

Index terms
Mangifera indica L.; photosynthetic pigments; soluble sugars