MAYURI SAHU, NEHA BELSARIYA*, ANJALI KAK AND SUJIT
Department of Genetics and Plant Breeding, COA, IGKV, Raipur-492 012 (Chhattisgarh), India
Division of Germplasm Conservation, National Bureau of Plant Genetic Resources
(Received : 21 February 2023; Accepted : 28 June 2023)
The present study on variability and character association in fodder oat was carried out at Research cum Instructional Farm, IGKV, Department of Genetics & Plant Breeding, Raipur during
Rabi, 2019-20. An experiment was conducted with 294 germplasm accession belonging to ten different Avena species with six check varieties of oat (Avena sp. L.) in augmented design. Nineteen quantitative traits were studied for the assessment of genetic variability. Sufficient variation was exhibited by most of the traits studied. The highest values for GCV and PCV was green fodder yield, number of tillers per plant and number of leaves per plant. High heritability and coupled with high genetic advance were found in number of leaves per plant and green fodder yield per plant. Most of the traits studied had skewness value ranged from (-0.5 to 0.5) are normally distributed except for days to 50% flowering, number of tillers per plant, number of leaves of per plant, leaf dry weight per plant, leaf: stem ratio and days to maturity. Negative kurtosis (Platykurtic) viz., leaf length, culm diameter, number of leaves per plant, seed yield per plant, dry matter weight and 1000 seed weight.
Key words: Oat, genetic variability, correlation coefficients and heritability