English

Silva Maciel Khetrin,Alvarez Cabanez Patricia,Carlos Lopes Jose,Agnolette Capelini Vinicius,Aparecida Muniz De Lima Paula,Guilherme Bergamim Mellere Jose,Zanotti Madalon Fernando,Sobreira Alexandre Rodrigo,Merlo Meneghelli Caroline,De Paiva Caetano Bucker Moraes Simone

doi:10.5897/ajar2017.12710

Abstract

Bean is one of the most important crops because it is a staple food. In order to control diseases and pests, the use of fungicides and insecticides in the seed treatment are efficient methods. In this sense, the aim of this study was to evaluate the effect of fungicides and insecticides on physiological quality of bean seeds. The experiment was conducted in a laboratory and greenhouse, and seeds of two genotypes of common bean (Peanut and Xamego) were used. The seeds were treated with the following fungicides: Captan, Fluazinam, Metioram and insecticides: Acefate, Imidacloprid and Thiametoxan. The experiment was arranged in a completely randomized design, with replications and seven treatments. Not treated seeds were utilized as control. The bean seeds treatment of the genotype Peanut and Xamego using insecticide and fungicide did not affect the physiological quality of the seeds. Xamego genotypes shows greater vigor in the laboratory, while the Peanut genotype in the greenhouse, and the treatments do not interfere in the initial growth of the plants. Key words: Phaseolus vulgaris L, germination, phytosanitary treatment, seedling emergence, vigor.

Highlights

The bean seeds treatment of the genotype Peanut and Xamego using insecticide and fungicide did not affect the physiological quality of the seeds
Xamego genotypes shows greater vigor in the laboratory, while the Peanut genotype in the greenhouse, and the treatments do not interfere in the initial growth of the plants
There was a significant interaction between fungicide and insecticides treatments and common bean genotypes (Table 2)

Summary

Introduction

Countless pests and diseases negatively interfere in production. Pest and diseases control in seeds, insecticides and fungicides are usually used, some of which may present physiological activity with a tendency to establish vigorous growth and to improve production (Castro et al, 2008). The active ingredients Thiametoxan and Imidacloprid, belonging to the chemical group of neonicotinoids, are systemic substances of insecticidal action (Ávila and Duarte, 2012). The insecticide Acefate belongs to the chemical group of organophosphorus and presents systemic action. Seed treatment protects them against the initial attack of specific pests, being important in the rational use of effective products and prolonged residual action, guaranteeing seedlings stand and initial establishment. Insecticides in most cases can reduce the number of applications after crop emergence (Marchi et al, 2011) which can have protective and physiological effects, helping both the initial growth and the plant development (Dan et al, 2012)

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