Yield Stability and Genotype Environment Interaction of Water Deficit Stress Tolerant Mung Bean (Vigna radiata L. Wilczak) Genotypes of Bangladesh

Eldessoky S. Dessoky,Muhammad Habib-ur-Rahman,Mohammad Jahangir Alam,Talha Javed,Mohammad Sohidul Islam,Mohammad Ashraful Alam,Mohammad Rafiqul Islam,Rubab Shabbir,Ali Raza,Mohammad Shahin Uz Zaman,Mohammad Golam Azam,Bikash Chandra Sarker

doi:10.3390/agronomy11112136

Abstract

Water deficit stress is a critical abiotic constraint to mung bean production that affects plant growth and development and finally reduces crop yield. Therefore, a field experiment was conducted at five diverse environments using four water stress-tolerant genotypes, namely BARI Mung-8, BMX-08010-2, BMX-010015, and BMX-08009-7, along with two popular cultivated varieties (check) of BARI Mung-6 and BARI Mung-7 to evaluate more stable tolerant genotypes across the country. Stability analysis was performed based on the grain yield. The combined analysis of variance showed significant variations among genotypes, environments, and their interactions. The AMMI analysis of variance indicated that genotype accounted for 91% of the total sum of squares for grain yield, followed by genotype × environment interaction (5%), and environment (4%). Partitioning of interaction indicated that the first three interaction principal components (IPCA1–IPCA3) were highly significant (p ≤ 0.01). Using these significant IPCAs, AMMI stability parameters and non-parameter indices BMX-010015 was found stable across the environment based on yield traits and grain yield. The BMX-08010-2 genotype also showed significant regression coefficient (bi) more than unity, and non-significant deviation from regression (S2di) values, indicating suitable for a favorable environment considering grain yield. So, based on the stability analysis (Eberhart and Russell), additive main effects, and multiplicative interactions (AMMI) analysis, the BMX-010015 and BMX-08010-2 could be suitable for having tolerance to water deficit stress.

Highlights

IntroductionThe area and production of mung bean are declining due to several abiotic and biotic constraints, poor crop management practices, and the non-availability of quality seeds of improved varieties to farmers [2]
Our results indicated that the genotypes BMX-010015 and BMX-08010-2 were moderate grain yielding genotypes, and obsessed wide adaptation to tested environments, whereas the genotypes BARI Mung-7 and BARI Mung-8 were high grain yielding and well adapted to specific environments
Our results indicated that the genotypes BMX-010015 and BMX-08010-2 were moderate grain yielding genotypes, and obs1e2sosfe1d7 wide adaptation to tested environments, whereas the genotypes BARI Mung-7 and BARI Mung-8 were high grain yielding and well adapted to specific environments

Summary

Introduction

The area and production of mung bean are declining due to several abiotic and biotic constraints, poor crop management practices, and the non-availability of quality seeds of improved varieties to farmers [2]. Abiotic stresses affecting mung bean production include drought, heat, waterlogging, and salinity. Drought and salinity stress are more prominent that affect the growth and productivity of crops [3] by producing reactive oxygen species (ROS) [4], and osmotic stress [5] that causes oxidative damage in plant cells [6]. With that point of view, few drought-tolerant mung bean genotypes viz., BARI Mung-8, BMX-08010-2, BMX-010015, and BMX-08009-7 had been identified [31], but the performance of yield and stability across locations are still unexplored. It is required to assess crop genotypes at diverse locations to evaluate their performance for more site-specific management due to changing climate [32]

Methods

Results

Conclusion