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. 2014 Sep;30(3):261-8.
doi: 10.5423/PPJ.OA.03.2014.0023.

Evaluation of mungbean genotypes based on yield stability and reaction to mungbean yellow mosaic virus disease

Akm Mahbubul Alam  1 , Prakit Somta  2 , Choosak Jompuk  2 , Prasert Chatwachirawong  2 , Peerasak Srinives  2
Affiliations

Evaluation of mungbean genotypes based on yield stability and reaction to mungbean yellow mosaic virus disease

Akm Mahbubul Alam et al. Plant Pathol J. 2014 Sep.

Abstract

This work was conducted to identify mungbean genotypes showing yield stability and resistance to mungbean yellow mosaic virus (MYMV) disease. Sixteen genotypes were evaluated in a randomized complete block design with two replications for two years (2011 and 2012) at three locations (Gazipur, Ishurdi and Madaripur) of the Bangladesh Agricultural Research Institute. An analysis of variance exhibited significant effects of genotype (G), environment (E), and genotype × environment (G×E) on grain yield. Among eight agronomic characters, the principal component 1 (PC1) was always higher than the PC2. Considering G×E interaction, BM6 was the best genotype at all three locations in both years. Based on grain yield and stability performance, BM6 ranked first while the worst performing genotypes were BM1 and G10. Based on discrimination and representation, Gazipur was identified as an ideal environment for these mungbeans. Relationship between soil-plant analysis developments (SPAD) value was positive with yield but negative with MYMV severity. BM6, G1 and G2 were considered as promising sources of resistance for low disease score and stable response across the environments. The environment proved to have an influence on MYMV infection under natural infestation. A positive correlation was observed between disease score and the temperature under natural growing condition.

Keywords: GGE biplot; disease score; genotype × strain interaction; mungbean.

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Figures

Fig. 1
Fig. 1
GGE biplot of yield (kg/ha) showing the vector of 6 locations and 16 mungbean genotypes. The average environmental axis (AEA) is the straight line that passed through the origin (0,0) and coordinate of the location mean.
Fig. 2
Fig. 2
GGE biplot of relationship among environments based on yield data.
Fig. 3
Fig. 3
GGE biplot based on MYMV disease score of 16 mungbean genotypes.
See this image and copyright information in PMC

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