Uso do paclobutrazol na produção de manga

Abstract

<jats:p>The use of growth regulators is essential for the success of mangiculture in Brazil, since they play an important role in floral induction, allowing the staggering of production throughout the year and obtaining good quality fruits and quantities that meet the internal demand and external. Due to the great economic importance of the mango, this review aims to clarify aspects about the use of paclobutrazol in inducing the flowering of the mango. The methodology adopted was the bibliographic study, and the information was obtained from documentary sources. It was found that temperature is the most important climatic factor for the flowering of the mango tree because low temperatures paralyze the vegetative growth that is indispensable for flowering. Gibberellins (GAs) are plant hormones that regulate flowering, in high concentrations favor vegetative growth and in low concentrations inside the branches induce flowering. Therefore, products that interfere in the synthesis of GAs are efficient in inducing flowering and among the products that inhibit GAs, paclobutrazol (PBZ) is the most used in mango production. It is applied to moist soil after two outbreaks of plant sprouting, therefore pruning after harvest is essential for these shoots to be vigorous and uniform. For many traditionally mango producing regions, the doses of PBZ have already been defined and depend on the cultivar, soil type, cultivation conditions, in addition to the nutritional condition of the plants and vary from 0.3 to 1.62 grams per linear meter of the canopy. For the success of floral induction of the mango tree, the application of PBZ must be combined with other managements such as pruning, mineral nutrition and irrigation.</jats:p>

Indução Do Florescimento De Espécies Florestais Por Meio Da Enxertia E Aplicação De Paclobutrazol

“…Os reguladores de crescimento têm sido amplamente utilizados na agricultura e em culturas fl orestais, e seus benefícios foram relatados em diversas pesquisas (Mendes et al, 2020;Oliveira, 2020; Desta e Amare 2021; Singhal et al, 2021). Dentre estes reguladores, o paclobutrazol (PBZ) é um dos mais utilizados para reduzir o tempo entre a fase juvenil e reprodutiva (Taiz e Zeiger, 2017).…”

“…Reguladores vegetais são utilizados com muito sucesso em diversas culturas no Brasil, desempenhando um papel importante na indução do fl orescimento (Soumya et al, 2017;Oliveira, 2020; Desta e Amare 2021). O paclobutrazol (PBZ) é um regulador de crescimento vegetal que age inibindo a biossíntese de giberelinas e aumentando proporcionalmente a concentração de ácido abcísico (ABA) (D'Arêde et al, 2017;Taiz e Zeiger, 2017).…”

Nutritional Status of Mango by the Boundary Line and Mathematical Chance Methods

“…Northeast region of Brazil concentrates 75% of the Brazilian mango production, with emphasis on the São Francisco Valley in the northeastern semiarid, that is the largest producer and exporter of mango of the country (Carvalho, Lima, Lobo, Mudo, & Santos 2020;Ferreira et al, 2020;IBGE, 2020;Oliveira, 2020;Silva et al, 2020).…”

Initial growth of clonal seedlings of Passiflora mucronata genotypes in response to paclobutrazol concentrations

“…However, the effect varies according to the developmental stage of the plant, the product concentration, species, cultivar, time, and type of application (Rademacher, 2000;Mabvongwe et al, 2016;Oliveira et al, 2020). In Solanum lycopersicum L., PBZ application resulted in reduced plant height, increased stem diameter and leaf number, and altered root architecture (Pal et al, 2016), while in Solanum tuberosum L., PBZ application increased stem diameter by 74% (Mabvongwe et al, 2016).…”