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Assessment of phenotypic diversity and multi-locational screening against bean common mosaic virus (BCMV) disease resistance in dry bean (Phaseolus vulgaris L.)

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Title Assessment of phenotypic diversity and multi-locational screening against bean common mosaic virus (BCMV) disease resistance in dry bean (Phaseolus vulgaris L.)
 
Creator Talavar Basavaraja
Lakshmaiah Manjunatha
Rahul Chandora
Mohar Singh
Santosha Rathod
Vikas Dubey
Kanishka R. C
Farindra Singh
Narendra Pratap Singh
 
Subject Agronomic traits
cluster analysis
disease screening
germplasm
 
Description Not Available
Assessing genetic diversity and identifying trait-specific germplasm within germplasm collections is necessary for a varietal development programme. Agronomic features were investigated in 318 diverse dry bean germplasm accessions, including check varieties. We observed a lot of genetic variability for the traits studied. A wide range of variations was noticed for days to 50% flowering, days to maturity, pod length, the number of seeds per pod and 100-seed weight (HSW). For eight of the agronomic features evaluated, the analysis of variance revealed substantial differences among the accessions. For all characters, phenotypic coefficient of variation estimations were more significant than genotypic coefficient of variation. Plant height, days to 50% flowering, seed yield (q/ha) and HSW had high heritability and genetic advance as a per cent of the mean. Association analysis revealed a significant positive relationship between HSW, plant height, pod length and seed yield (q/ha). According to a hierarchical clustering analysis based on agronomic features, the diversity of dry bean germplasm has no significant association with their geographical origin. The number of pods per plant, plant height, days to maturity, days to 50% flowering and seed yield had relatively long vectors based on principal components 1 and 2, indicating that genotypes differ significantly. Additionally, the trait-specific donors and bean common mosaic virus disease-resistant accessions, IC360831, ET4515, EC150250, IC340947, IC564797B, EC565693 and ET8409 could be of value for dry bean improvement.
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Date 2023-02-16T07:29:27Z
2023-02-16T07:29:27Z
2022-07-08
 
Type Article
 
Identifier 9. Basavaraja, T., Manjunatha, L., Chandora, R., Singh, M., Rathod, S., Dubey, V., . . . Singh, N. (2022). Assessment of phenotypic diversity and multi-locational screening against bean common mosaic virus (BCMV) disease resistance in dry bean (Phaseolus vulgaris L.) germplasm. Plant Genetic Resources, 1-8. doi:10.1017/S1479262122000144
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http://krishi.icar.gov.in/jspui/handle/123456789/76229
 
Language English
 
Relation Not Available;
 
Publisher Cambridge University Press