Plant stimulants and horticultural production

Resumo

Esse artigo trata do uso de estimulantes vegetais, que são substâncias orgânicas e microrganismos, utilizados em pequenas quantidades, os bioestimulantes (no Brasil registrados como biofertilizantes) são categorizados de acordo com sua natureza, modos de ação e tipos de efeitos nas culturas, existem grupos principais de estimulantes vegetais, incluindo hidrolisados de proteínas, substâncias húmicas, extratos de algas marinhas, biopolímeros (quitosana e outros polímeros) e bioestimulantes como fungos micorrízicos, não micorrízicos, Rhizobium e Trichoderma (esses no Brasil registrados como inoculantes ou produto biológicos).

Abstract

Plant stimulants is an organic substance and micro-organisms, used by small quantities,
Biostimulants categorize according to their nature, modes of action, and types of effects
on crops, there are main groups of plant stimulants include Protein hydrolysates, Humate
substances, Seaweed extracts, Biopolymers (Chitosan and other polymers), and Microbial
biostimulants like mycorrhizal, non-mycorrhizal fungi, Rhizobium, and Trichoderma.
Horticulture crop production facing several challenges particularly abiotic stresses and
malnutrition resulting in yield loss and affects negatively fruit quality. The main effects of
plant stimulants due to its working as the auxin-like effect, enhancing Nitrogen uptake, and
stimulate plant growth. There is various stimulation effects on horticulture crops including
promote plant growth, increase plant tolerance for biotic and abiotic stresses. Applying
plant stimulants to plants or the rhizosphere stimulating plant metabolic processes, increase
the efficiency of the nutrients, and increase plant tolerance to abiotic stress, consequently,
improving plant growth increases yield, and enhancing fruit quality.