Multivariate Analysis in Taro [Colocasia esculenta (L.) Schott]
2019
Devi, H. Supriya | Singh, Vikas | Hemochandra, L
The genetic divergence of 40 accessions of taro (Colocasia esculenta (L.) Schott) collected from North East states were studied. Multivariate analysis of divergence among the accessions for 17characters led to their grouping into 07 clusters. No relationship was found between genetic divergence and geographic distribution of accessions and so geographic diversity is not adequate as index of genetic diversity. The values of intra cluster distance ranged from 0.00 (clusters II, VI and VII) to 64.90 (cluster V).The maximum inter cluster D2 value was observed between cluster II and VII (218.30), while lowest inter cluster distance was observed between cluster II and V (46.94). Breeding programme involving accessions under these clusters may produce desirable segregants. Cluster means revealed appreciable variation for different characters and the cluster V had maximum mean for number of cormels per plant. The entries under these clusters viz., o CHFCOL-2, CHFCOL-28, CHFCOL-25 and CHFCOL-11 are found to be high yielders and may be subjected to advance evaluation to validate their superiority.
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