INTER-RELATIONSHIP OF GREEN FODDER YIELD WITH YIELD CONTRIBUTING AND QUALITY TRAITS IN AVENA SATIVA
RAHUL KAPOOR*
Department of Plant Breeding and Genetics,
Punjab Agricultural University,
Ludhiana-141 004, Punjab, India
*(e-mail : rahulkapoor@pau.edu)
(Received : 25 November 2017; Accepted : 20 January 2018)
SUMMARY
The present study was conducted for two years during Rabi season of 2010-2011 and 2011-12 with
25 diverse genotypes selected from wide range of germplasm being maintained at forage research farm,
Punjab Agricultural University, Ludhiana. The genotypes were analysed with two years pooled data for genetic
variability, correlation and path coefficients. High estimates of GCV and PCV were observed in many important
traits suggesting that selection based on these characters would facilitate successful isolation of desirable
types. High heritability along with high genetic advance (GA) was recorded for number of leaves/plant, leaf
width (cm), number of tillers/plant, leaf area index, leaf stem ratio, crude protein (%), dry matter yield/plot
(kg) and green fodder yield/plot (kg). Traits like plant height, number of leaves, leaf length, leaf width,
number of tillers/plant, stem girth and dry matter yield had positive and significant correlation at genotypic as
well as phenotypic level with green fodder yield and the selection based on these traits will result in improving
the green fodder yield in oat. Two important quality traits viz; crude protein and in vitro dry matter digestibility
manifested positive and significant correlation between each other but both were negatively correlated to
green fodder as well as dry matter yield. Traits like plant height, number of leaves/plant, leaf width, leaf area
index, leaf stem ratio, in-vitro dry matter digestibility and dry matter yield showed high direct effect on green
fodder yield. Taller plants with more number of leaves and tillers/plant, broader leaves, will be significant for
the improvement of green fodder yield in the material under study.
Key words: Genetic advance, genotypic coefficient of variation (GCV), heritability, phenotypic coefficient of variation (PCV), Green fodder yield components