Indian Society of Genetics & Plant Breeding

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GENETIC DIVERGENCE OF SUGAR YIELD CONTRIBUTING CHARACTERS IN SACCHARUM ROBUSTUM BRANDES ET JESWIET EX GRASSL.

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Fifty one flowering clones of Saccharum robustum were evaluated for yield and quality
parameters to study the pattern ofgenetic divergence using Mahalanobis' D2 statistics. The
clones weregrouped into eleven clusters. Cluster IV was the mostdivergent. Cluster IX was
the most distant from the other clusters. Cluster means indicated that cluster VI was the
best for cane yield. but was poor for quality, while cluster IX was the best ~or quality and
was poor for cane yield. Crossing S. rob",tum clones from divergent clusters for
intra-population improvement or hybridization of Fts evolved by crossing commercial
hybrids or S. ojfidrtarum clones with S. robu,tum clones from divergent clusters to derive
double Croll hybrids may pave way for enhancing variability so as to select progenies with
high stalk yield and improved juice quality.
 

Keywords: Genetic divergence, Mahalanobis' Ii statistic, S. robustum, stalk yield, juice quality.

Info

Year: 1997
Volume: 57
Issue: 1
Article DOI: NA
Print ISSN: 0019-5200
Online ISSN: 0975-6906

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