ASSESEMENT OF GENETIC VARIABILITY, CORRELATIONS AND PATH COEFFICIENT ANALYSIS IN FORAGE OAT (AVENA SATIVA L.)
V. R. WAGH, A. H. SONONE* AND S. V. DAMAME
AICRP on Forage Crops and Utilization
Mahatma Phule Krishi Vidyapeeth,
Rahuri-413 722 (M. S.), India
*(e-mail : ajitsonone@gmail.com)
(Received : 17 September 2018; Accepted : 15 December 2018)
SUMMARY
The present study was conducted during winter season of 2016-2017 with 27 diverse oat genotypes. The genotypes were analyzed for genetic variability, correlation, path analysis and genetic diversity. High heritability along with high genetic advance was recorded for plant height, number of tillers per meter row length, leaf length, leaf width, leaf/stem ratio, stem thickness and green forage yield. High values of GCV and PCV were observed for leaf/stem ratio and green forage yield whereas low values were observed for dry matter content and number of leaves per tiller. Green forage yield was significantly and positively correlated with number of tillers per meter row length, crude protein content, stem thickness, leaf width, plant height and number of leaves per tiller. Leaf width and crude protein content exhibited highest positive direct effect and significant positive correlation with green forage yield.
Key words: Forage oat, Variability, Correlation, Path analysis