~ 1484 ~ Journal of Pharmacognosy and Phytochemistry 2020; 9(5): 1484-1487 E-ISSN: 2278-4136 P-ISSN: 2349-8234 www.phytojournal.com JPP 2020; 9(5): 1484-1487 Received: 15-06-2020 Accepted: 02-08-2020 Khursheed Alam Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Manoj Kumar Singh Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Mukesh Kumar Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Atar Singh Department of Genetics and Plant Breeding, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Vipin Kumar Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Muzeev Ahmad Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Deepesh Keshari Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Corresponding Author: Khursheed Alam Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, Uttar Pradesh, India Estimation of genetic variability, correlation and path coefficient in okra ( Abelmoschus esculentus (L.) Moench) Khursheed Alam, Manoj Kumar Singh, Mukesh Kumar, Atar Singh, Vipin Kumar, Muzeev Ahmad and Deepesh Keshari Abstract An experiment was conducted comprising 40 genotypes of okra in RCBD with three replications at HRC, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut during summer season of 2019. The significant variation and relatively wide range of mean recorded for all characters, indicated the existence of variation among the tested genotypes. High phenotypic coefficient of variation (PCV) and genotypic coefficient of variation (GCV) were observed for number of primary branches and moderate phenotypic coefficient of variation and genotypic coefficient of variation was observed for length of internode, number of nodes per plant, plant height, number of fruits per plant, fruit yield per plant and fruit yield. High GCV along with high heritability and genetic advance as percent of mean was observed for number of primary branches, plant height, number of fruits per plant, fruit yield per plant, number of nodes per plant, fruit yield, length of internode, days to first flower initiation, days to 50% flowering, and days to first fruit set. Fruit yield showed positive and significant correlation with fruit yield per plant, number of fruits per plant, plant height, length of internode, fruit length, number of primary branches and duration of crop at both phenotypic and genotypic correlation coefficient. The path coefficient analysis indicated high positive direct effect for fruit yield per plant, plant height, days to first flower initiation, number of primary branches and days to first fruit picking and high but negative direct effect exhibited by length of internode, number of nodes per plant, number of fruits per plant, fruit length, days to 50% flowering, days to second fruit picking, duration of crop and days to first fruit set on fruit yield. Keywords: Estimation, genetic variability, correlation, okra Introduction Okra [Abelmoschus esculentus (L.) Moench] is popularly known as lady’s finger or bhindi belong to the family Malvaceae with chromosome number 2n=130. It is important spring– summer and rainy season vegetable crop cultivated in tropical and sub-tropical parts of the world. The mature and tender fruits of okra are mostly used as vegetable and culinary preparation as sliced and fried pieces. Its fruits have high nutritive, medicinal and industrial value and export potential. Its fruits are rich in vitamins, calcium, potassium and other mineral matters (Effing et al., 2009) [7] . Dried stems and roots of okra have been reported to be utilized for cleaning sugarcane juice from which molasses is prepared. Crude fibre is present in mature pods and stems which is utilized by the paper industry. It is rich in iodine and other nutrients (Benchasri, 2012) [2] . Materials and Methods The present study was carried out during summer season 2019 at the Horticulture Research Centre, Department of Horticulture, Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, U.P. A group of forty genotypes were evaluated under field condition using randomized block design with three replications. Each genotype was sown in 60 cm spaced. Plant to plant distance maintained 30 cm. observations were recorded on five randomly selected plant from each replication of each plot. Observations were recorded on days to first flower initiation, days to 50% flowering, plant height, number of primary branches, number of nodes per plant, length of internode, fruit length, days to first fruit set, number of fruits per plant, days to first fruit picking, days to second fruit picking, duration of crop, fruit yield per plant and fruit yield (q/ha). Mean values of five Randomly selected plants were used for statistical analysis. The estimates of variability parameters work out according to the method suggested by Lush (1940). Phenotypic and genotypic coefficient of variation were calculated based on the approach cracked by Burton (1952) [4] .