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 cultivar for commercial cultivation in a particular region. The present study investigated the estimation of the genetic variability, heritability, genetic advance (GA), genetic gain, and correlation among 38 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, India) from 2018 to 2020 with the objective to evaluate the performance of different genotypes of tulip under mid-hills of Himachal Pradesh. The findings revealed that a high genotypic coefficient of variance (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. Characteristics 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, and bud length recorded high heritability and highest genetic gain. A significant positive correlation was recorded for plant height, leaf area, bud length vase life etc. The 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 the weight of bulbs/plant revealed the true relationship between them, thus suggesting that these traits should be considered in the selection program.
Rana, Nepu & Sharma, Puja & Dhiman, Sitaram & Kashyap, Bharati & Dogra, Rajesh & Sharma, Anju & Sharma, Poonam. (2024). Genetic characterization of Tulip (Tulipa hybrida L.) genotypes under mid hills of Himachal Pradesh. Genetic Resources and Crop Evolution. 1-17. DOI 10.1007/s10722-024-02168-z.
Source: ResearchGate