STUDIES ON GENETIC EVALUATION OF BEET ROOT (Beta vulgaris L.)
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Date
2013
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Abstract
The present investigation entitled “Studies on genetic evaluation of beet root (Beta vulgaris
L.)” was carried out at experimental farm of Department of Vegetable Science, Dr YS Parmar
University of Horticulture and Forestry, Nauni, Solan (HP) during 2011-12 and 2012-13. Plant material
was consisted of diverse genotypes of beet root procured from IPGCPR, Gatersleben Germany and
India. The experiment was laid out in a RCBD with three replications. Twenty five diverse genotypes
including check cultivars (Crimson Globe and Detroit Dark Red) were evaluated for different
horticultural traits. The observations were recorded on number of leaves per plant, leaf length, leaf
width, root diameter, root length, root top ratio (length basis), root top ratio (weight basis) average root
weight, net root weight, yield per plot and per hectare, flesh thickness, dry matter recovery, TSS, total
sugars, reducing sugars, non reducing sugars, carotenoid contents. Analysis of variance showed highly
significant differences among genotypes for all the characters under study. Maximum root yield of
30.29 kg per plot was recorded in genotype TNBR-1 and gave 27.70 and 44.11 per cent more yield
over check cultivars Crimson Globe & Detroit Dark Red and also performed well for majority of other
character viz., leaf length & width, root diameter & length, net root weight, yield per hectare, dry
matter recovery, flesh thickness, carotenoid content and average root weight .Whereas genotype
BETA-340, TNBR-8, TNBR-9 were highest in non reducing sugars, TSS and carotenoid contents
respectively. High heritability estimates coupled with moderate genetic gain were observed for yield
and other horticultural traits. Yield per plot was positively correlated with average and net root weight,
flesh thickness, root diameter, dry matter recovery, total sugar, root length, leaf width and length and
carotenoid contents. Characters like average root weight has maximum positive direct effect on yield
per plot followed by root diameter, root length, leaf width, net root weight, root top ratio both on
weight and length basis, non reducing sugars, number of leaves, total sugars and carotenoid contents.
Maximum number of genotypes viz., 9, 5, 5, 5 and 1 were accommodated by cluster-I followed III, IV,
V and cluster-I respectively. Further divergence studies indicated that hybridization between cluster-II
and V in both the cases can be utilized for getting the superior recombinants in segregating generations.
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Keywords
beet root (Beta vulgaris L.)” ,genetic evaluation