Study of Genetic Variability among Some Petunia Hybrids at Chhattisgarh Plains
Juliana Lalrintluangi *
Department of Floriculture and Landscape Architecture, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., India.
S. K. Tamrakar
Department of Floriculture and Landscape Architecture, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., India.
Rajeev Shrivastava
Department of Genetics and Plant Breeding, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G., India.
*Author to whom correspondence should be addressed.
Abstract
The present investigation entitled “Study of genetic variability among some petunia hybrids at Chhattisgarh plains” was carried out during the year 2022-23 at the Horticultural Research cum Instructional farm, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya Raipur (C.G.). The experiment was laid out in a Completely Randomized Design in three replications using 10 genotypes, viz., Daddy, Eagle, Dreams, Success 360, Mirage, Supercascade, Tritunia Crimson Star, Double Duo, Double Pirouette Rose and Double Glorious. The analysis of variance revealed significant differences for all the characters. The variability was studied among these different genotypes. The highest range as well as the highest GCV and PCV was found in the number of flowers per plant. The heritability ranged between 48.74 (plant spread at 90 days) to 99.97 per cent (number of leaves at 75 days). High heritability (>60%) was found in almost all characters. Genetic advance and genetic advance as per cent of mean were found to be maximum for number of leaves at 90 days (26.66) and leaf area (43.69) respectively. High heritability coupled with a high genetic gain was also observed in some characters indicating that these characters are most suitable for selective breeding.
Keywords: Petunia, variability, GCV, PCV, heritability