ASSESSMENT OF RELATIVE VARIABILITY AND ITS DISTRIBUTION
PATTERN IN SOME AVENA SPECIES
JAYEETA CHAKRABORTY, R. N. ARORA, A. K. CHHABRA AND D. R. ANEJA
Oriental Bank of Commerce, Pataudi,
Gurgaon (Haryana), India
(Received : 03 June 2016; Accepted : 27 June 2016)
Twenty-four genotypes comprising 16 Avena spp. were studied for assessing variability and its distribution pattern for 12 morphological characters at Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana, India during rabi 2010-11. Duncan multiple range test reflected relative genotypic variability for each trait among 24 genotypes and distribution pattern for variability suggested six distinct groups for green fodder yield, three groups for seed yield/plant and flag leaf width; two groups each for number of leaves on main culm, tillers per plant, axis node, 100-seed weight, leaf width and height at fodder stage, five distinct groups each for dry fodder yield and spikelets/panicle. Genotype HJ 8 was found to have significant differences between all pairs of genotypes for the characters like axis node, spikelets/panicle, green fodder yield and leaf width. Similarly, genotype NGB 4462 was found to have significant differences between all pairs of genotypes for the particular characters flag leaf width and dry fodder yield.
Key words: Avena spp., morphological characters, variability, distribution pattern, Duncan multiple range test