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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (618) Last page : (627)
Article doi: http://dx.doi.org/10.18782/2320-7051.5030

Multivariate Analysis of Indigenous and Exotic Mulberry (Morus Spp.) Germplasm for Identifying Diverse Genotypes under Humid Subtropical Region

Suresh, K.*, Mrinal Kanti Ghosh1, Rita Banerjee, Debashish  Chakravarty and Kanika Trivedy
Central Sericultural Research and Training Institute, Berhampore-742101, West Bengal
1Central Sericultural Research and Training Institute, Pampore, Jammu & Kashmir
*Corresponding Author E-mail: suresh4211@gmail.com
Received: 22.06.2017  |  Revised: 29.07.2017   |  Accepted: 6.08.2017  


Mulberry genetic resource is increasingly being recognized as one of the basic key material for sustainable silk production under changing climatic scenario. In this investigation, multivariate analysis was done to assess the diversity in 247 mulberry accessions (includes indigenous, exotic, improved and tetraploid clones/lines) for foliage yield and its growth attributes during 2014 to 2016. The analysis of variance (ANOVA) showed the presence of significant variation among accessions for the parameters measured. Wide range and variance among the accessions indicated the presence of variability for the traits on which selection can be practised. Primary branches per plant and inter nodal distance exhibited high genotypic (38.65, 25.99) and phenotypic (40.71, 26.99) coefficient of variance, respectively. Simple correlation coefficients revealed that foliage yield had significantly positive relationship with primary branches, while negatively correlated with inter-nodal distance. Principal component (PC) analysis showed first two PCs having eigen value >1 explained more than 78% of the genotypic variations. Cluster analysis classified 247 accessions into eight divergent groups and greater genetic distance was detected among the members of cluster III and cluster VIII and cluster VI and VIII. The members of these divergent clusters may be combined in future breeding programmes to obtain genotypes with combined foliage yield and more branches per plant.  The results showed that the germplasm having a wide genetic diversity thus the accessions viz., ME – 0042, ME – 0011, ME - 0084, MI – 0222, MI – 0092 and ME – 0006 can serve as a promising donors for improving the foliage productivity. 

Key words: Mulberry Accessions, Variability, Principal Component and Cluster Analysis

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Suresh, K, Ghosh, M.K., Banerjee, R., Chakravarty, D. and Trivedy, K., Multivariate Analysis of Indigenous and Exotic Mulberry (Morus Spp.) Germplasm for Identifying Diverse Genotypes under Humid Subtropical Region, Int. J. Pure App. Biosci.6(1): 618-627 (2018). doi: http://dx.doi.org/10.18782/2320-7051.5030