Genetic Variability, Correlation and Path Analysis Studies Among Different Tulip Genotypes

Abstract

Abstract The precise knowledge of the environmental influence on the growth and development of any crop, is crucial in order to understand the suitability of any cultivars for commercial cultivation, for a particular region.The present study investigates the estimation of the genetic variability, heritability, genetic advance, genetic gain and correlation among thirty-eight tulip genotypes. The study was undertaken at the experimental farm of the Department of Floriculture and Landscape Architecture, Dr. YS Parmar University of Horticulture and Forestry, Nauni, Solan (HP) during 2018 to 2020with an objective to evaluate the performance of different genotypes of tulip in mid hill conditions of Himachal Pradesh. The findings revealed that high GCV was recorded for flower size, number of bulbs/ plant, scape length, plant height, bulb weight, leaf area, days to sprouting and duration of flowering. Character such as plant height, scape length, duration of flowering and days to flower opening recorded high heritability coupled with moderate GA. Scape length, plant height, flower size, number of leaves/ plant, bulb weight, leaf area, days to sprouting, flowering duration, vase life, bud length and number of leaves/plant recorded high heritability and highest genetic gain. Significant positive correlation was recorded for plant height, leaf area, bud length and vase life etc. Maximum positive direct effect of flowering duration, vase life, days to flower opening, plant height, number of bulbs/ plant and weight of bulblets/plant etc., on weight of bulbs/plant revealed the true relationship between them.