TOLERANCE TO ALUMINUM TOXICITY IN COMMON BEAN GENOTYPES

Authors

Anderson Akihide Hirose, Agronomic Institute of Paraná State
José dos Santos Neto, Agronomic Institute of Paraná StateFollow
Vania Kajiwara, Agronomic Institute of Paraná State
Vânia Moda-Cirino, Agronomic Institute of Paraná State

Date of this Version

2-2017

Citation

ANNUAL REPORT OF THE BEAN IMPROVEMENT COOPERATIVE, No. 60, March 2017. Published by USDA.

Comments

U.S. government work.

Abstract

INTRODUCTION Approximately one third of areas cultivated with common bean in Brazil, more specifically in the states of Paraná, Minas Gerais, São Paulo, Goiás and Bahia, have high aluminum (Al) concentration and low fertility in soils (Giannakoula, 2008). In conditions of acidity and low fertility, the presence of soluble Al in the soil solution is one of the most limiting abiotic factors of crop development and yield. The Al exchangeable interferes in the absorption and movement of phosphorus, calcium and magnesium in the plant, contributing also to the adsorption of phosphorus in the soil (Echart and Cavalli-Molina, 2001). Considering the nature of Al stress, the hydroponic medium offers advantages in interaction studies of this element with plants, such as easy access to the root system, the possibility of monitoring and control pH, Al concentrations and other ions important to sensibility or tolerance reactions expression (Rossielo and Netto, 2006). Thus, the objective of this study was to evaluate common bean genotypes of the carioca and black commercial groups to reaction for the toxicity by aluminum.