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Delineation of Genotype-by- Environment interactions for identification and validation of resistant genotypes in mungbean to root-knot nematode (Meloidogyne incognita) using GGE biplot.

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Title Delineation of Genotype-by- Environment interactions for identification and validation of resistant genotypes in mungbean to root-knot nematode (Meloidogyne incognita) using GGE biplot.
 
Creator Singh, B., Das, A., Parihar, A.K., Bhagwati, B., Singh, D., Pathak, K.N., Dwivedi, K., Das, N., Keshari, K., Midha, R.L., Kumar, R., Pratap, A. Kumar, V. and Gupta, S.
 
Subject Melodogyne incongnita, Mungbean, Resistance, Root knot nematode,
 
Description Not Available
Susceptibility to root-knot nematodes (Meloidogyne spp.) is one of the major factors limiting mungbean
production in South and South-East Asia. Host-pest-environment interaction in mungbean and root knot nematode (M. incognita) was investigated in multi-location feld evaluation using 38 promising
mungbean genotypes extracted from initial evaluation of 250 genotypes under sick plots considering
second stage freshly hatched juvenile as inoculants. The extent of environmental and genotype by-environment interactions (GGE) was assessed to comprehend the dynamism of resistance and
identifcation of durable resistant mungbean genotypes. Among environmental factors, nematode
activity was highly infuenced by rainfall and minimum temperature. The GGE biplot and multiple
comparison tests detected a higher proportion of genotype × environment (GE) interaction followed
by genotype and environment on number of nematode galls, gall index and reproduction factor.
The frst two principal components (PCs) explained 64.33% and 66.99% of the total variation of the
environment-centered gall scoring and reproduction factor data, respectively. The high GE variation
indicated the presence of non-cross over interactions which justify the necessities of multi-location
testing. Detection of non-redundant testing locations would expedite optimum resource utilization
in future. The GGE biplot analysis identifed genotypes such as PM-10-12, IPM-410-3 and NVL-641 as
the outperforming and desirable genotypes with durable resistance against M. incognita which can be
exploited in mungbean breeding programmes globally. On the contrary, the highest gall scoring and
reproduction factor were recorded in genotype IPM-9901-8. Computation of confdence interval (CI) at
95% level through bootstrapping increased precision of GGE biplot towards genotype recommendation.
Furthermore, total phenol content, ascorbic acid, phenlylalanine ammonia lyase (PAL) and polyphenol
oxidase (PPO) activities were also higher in identifed resistant genotypes and this information would be
useful for devising mungbean breeding strategies in future for resistance against root-knot nematodes.
Not Available
 
Date 2024-05-03T10:03:59Z
2024-05-03T10:03:59Z
2020-03-05
 
Type Journal
 
Identifier Singh, B., Das, A., Parihar, A.K., Bhagwati, B., Singh, D., Pathak, K.N., Dwivedi, K., Das, N., Keshari, K., Midha, R.L., Kumar, R., Pratap, A. Kumar, V. and Gupta, S. 2020. Delineation of Genotype-by- Environment interactions for identification and validation of resistant genotypes in mungbean to root-knot nematode (Meloidogyne incognita) using GGE biplot. Scientific Reports. https://doi.org/10.1038/s41598-020-60820-x
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/82585
 
Language English
 
Relation Not Available;
 
Publisher Nature