Correlation and Path Coefficient Analysis of Onion (Allium cepa L.) for Green Foliage Yield

Abstract

The present investigation was carried out during the year 2023-24 in the experimental field of Department of Vegetable Science at Pt. KLS College of Horticulture and Research Station, Rajnandgaon under Mahatma Gandhi University of Horticulture and Forestry, Sankra-Patan, Durg (C.G.). The experiment, consisting of 11 varieties of onion was laid under Randomized Block Design (RBD) with three replications. High magnitude of phenotypic coefficient of variance were observed for green foliage yield per hectare (33.71%), green foliage yield per plot (33.46%) and diameter of bulb (22.74%). High magnitude of genotypic coefficient of variance were observed for green foliage yield per hectare (32.31%) and green foliage yield per plot (32.02%). The estimates of heritability were recorded high for dry matter percentage of leaves (97.97%). High value of genetic advance as percentage of mean was recorded for green foliage yield per hectare (63.79%). Green foliage yield per hectare had highly significant and positive correlation both at genotypic and phenotypic level with green foliage yield per plant (0.787 and 0.649), dry matter percentage of leaves (0.794 and 0.748), plant height (0.746 and 0.577), length of leaves (0.659 and 0.589), collar girth (0.814 and 0.533), dry matter percentage of bulbs (0.721 and 0.693) and moisture percentage of bulbs (0.740 and 0.646). Path coefficient analysis revealed positive and direct effect of green foliage yield per hectare was recorded via length of leaves followed by dry matter percentage of leaves, moisture percentage of bulbs, plant height, collar girth, dry matter percentage of bulbs, leaves width, moisture percentage of leaves, green foliage yield per plant and no. of leaves per plant.