Altered anatomical appraisal of mung bean (Vigna radiata (L.) Wilczek) under salinity stress

Abstract

Mung bean, an important pulse crop, its growth, and development are affected by various abiotic stresses where salinity hampers yield seriously. An experiment was conducted under the hydroponic condition to observe the effect of salinity on the anatomical attributes of mung bean genotypes. The design of the experiment was randomized complete with factorial having five levels of salinities i.e. 0 (control), 6, 8, 10, 12 dSm-1. The results indicated that anatomical features of mung bean plants were affected by the application of salt. The cortex and stele radius and vascular bundle strands were reduced due to salt application. The vascular bundle size especially the length was decreased with the increased levels of salinity. Similarly, the radius of cortex was also decreased with the increased levels of salinity. The results concluded that the application of salts altered the plant's internal structures, especially the vascular bundles and leaf spongy parenchyma tissue.
 Bangladesh J. Sci. Ind. Res. 57(3), 139-148, 2022

Evaluation of pant characteristics and physiological performance of mungbean (Vigna radiata (L.) Wilczek) genotypes under salt stress

“…Among the genotypes, one tolerant (BD-6895) and one susceptible (BD-6905) were selected for physiological evaluation. The selection was based on this screening and another experiment conducted in the department of Crop Botany (Khan et al, 2022).…”

“…The current series of the experiment focuses on the saline stress and the ability of mungbean to find a place in the saline coastal area of Bangladesh as a fill crop (mungbean-rice-wheat to replace fallow-rice-fallow) or a relay crop in the existing cropping pattern. Among the procured genotypes, BD-6895 was screened as tolerant, and BD-6905 as susceptible from the initial screening and findings of a previous experiment (Khan et al, 2022). Considering the physiological parameters, mungbean genotypes showed high proline and low MDA deposition in tissues under salt stress.…”