Effects of Different Salt Stress and Temperature Applications on Germination in Mung Bean (Vigna radiata (L.) R. Wilczek) Genotypes

Abstract

Abiotic stress factors are among the primary elements hindering plant growth and development. Initial growth and development in plants are significantly affected by temperature and salinity. The study aimed to investigate the growth and development parameters of two different mung bean genotypes under different salt concentrations and temperatures. Four different salt doses (0, 5, 10, and 15 EC) and three different temperatures (15, 20, and 30°C) were used in the study. Germination percentage, shoot and root lengths, shoot fresh and dry weights, and ion leakage parameters were examined in the study. As a result of the study, the highest germination rate, shoot and root lengths, and fresh and dry weights were determined at 30°C under control, 5 EC salt applications, while the lowest was recorded at 15°C under 15 EC salt applications. The lowest ion leakage was determined in the control application at 15°C, while the highest was observed at 30°C under 15 EC applications. Increasing temperature positively affected growth parameters. It was determined that salt stress could be tolerated up to a certain level with high temperatures. This study conducted on mung bean is indicative of developing varieties tolerant to temperature and salt stress, which are important issues today.