Skip to main navigation menu Skip to main content Skip to site footer
Plant Science Today (PST)

Research Articles

Vol. 13 No. sp2 (2026): Recent Advances in Agriculture

Quantitative genetic analysis of yield contributing traits in pointed gourd genotypes

DOI
https://doi.org/10.14719/pst.12140
Submitted
6 October 2025
Published
20-06-2026

Abstract

A field experiment was conducted at the Vegetable Research Farm of the Horticulture Garden, Bihar Agricultural College, Sabour, Bhagalpur, to assess the genetic variability, heritability and genetic advance in pointed gourd genotypes. The experiment was laid out in a randomised block design (RBD) with three replications, comprising 25 genotypes. Analysis of variance (ANOVA) revealed significant differences among the genotypes for all the studied traits, indicating sufficient variability in yield and quality parameters. In all cases, the phenotypic coefficients of variation (PCV) values were higher than the corresponding genetic coefficients of variation (GCV) values. The highest GCV and PCV were observed for chlorophyll b (35.71 % and 36.06 % respectively), followed by marketable fruits per plant, yields of marketable fruits per plant and chlorophyll a. The high magnitude of GCV in chlorophyll b indicates substantial genetic variability among the genotypes, suggesting the potential for crop improvement through the selection of superior parents for direct selection. In the present study, heritability estimates ranged from 48 % to 98 %, suggesting that these traits are largely governed by additive gene action. These findings indicate that selection for early maturity, number of fruits and chlorophyll a and b content effectively improve yield and quality, providing key traits for breeding high- yielding and superior pointed gourd cultivars.

References

  1. 1. Sinha G, Pramanik S, Maurya PK, Mallick RG, Baul D, Bhattacharjee T, et al. Genetic diversity of female clones of pointed gourd (Trichosanthes dioica Roxb.) based on multivariate analysis and inter simple sequence repeat (ISSR) marker. Genet Resour Crop Evol. 2025;72:2865–85. https://doi.org/10.1007/s10722-024-02117-w
  2. 2. Saha G, Das SN, Khatua DC. Fruit and vine rot of pointed gourd-etiology, epidemiology and management. J Mycopathol Res. 2004;42:73–81.
  3. 3. Swamy KRM. Origin, distribution, taxonomy, botanical description, genetic diversity and breeding of pointed gourd (Trichosanthes dioica Roxb.). Int J Curr Res. 2022;14(10):22584–94.
  4. 4. Salgotra RK, Chauhan BS. Genetic diversity, conservation utilization of plant genetic resources. Genes (Basel). 2023;14(1):174. https://doi.org/10.3390/genes14010174
  5. 5. Singh AK, Singh RD, Singh JP. Studies on floral biology in pointed gourd (Trichosanthes dioica Roxb.). Veg Sci. 1989;16:185–90.
  6. 6. Sharma S, Sinha R, Singh AK, Meena Y, Pongener A, Sharma R, et al. An umbrella review on ethnomedicinal, pharmacological and phytochemical profile of pointed gourd (Trichosanthes dioica Roxb.): A bioactive healthy vegetable of Indian subcontinent. Food Chem Adv. 2023;3:100433. https://doi.org/10.1016/j.focha.2023.100433
  7. 7. Hassan J, Miyajima I. Morphological and ecological characteristics of pointed gourd (Trichosanthes dioica Roxb.). J Fac Agric Kyushu Univ. 2019;64(2):183–9. https://doi.org/10.5109/2339052
  8. 8. Das A, Sau S. Major cultivation practices of pointed gourd (Trichosanthes dioica Roxb.) and their respective efficient management strategies in the Indian context. Indian Farmer. 2020;7(5):423–7.
  9. 9. Boer HJD, Thulin M. Synopsis of Trichosanthes (Cucurbitaceae) based on recent molecular phylogenetic data. PhytoKeys. 2012;12:23–33. https://doi.org/10.3897/phytokeys.12.2952
  10. 10. Singh BK, Singh AK, Hotti AH, Kumar J, Singh SK. Diversity analysis through SDS-PAGE of seed storage protein of pea genotypes. Res Environ Life Sci. 2017;10(5):449–52.
  11. 11. Karmakar P, Bhardwaj DR, Singh BK, Chaubey T, Singh V, Singh PM, et al. Evidence confirms the occurrence of stenospermocarpic seedless fruit development in pointed gourd (Trichosanthes dioica Roxb.). Veg Sci. 2021;48(2):142–9. https://doi.org/10.61180/vegsci.2021.v48.i2.03
  12. 12. Burton GW, Devane EH. Estimating heritability in tall fescue from replicated clonal material. Agron J. 1953;45:474–81. https://doi.org/10.2134/agronj1953.00021962004500100005x
  13. 13. Lush JL. Heritability of quantitative characters in farm animals. Heredity. 1949;35:356–75. https://doi.org/10.1111/j.1601-5223.1949.tb03347.x
  14. 14. Robinson HF, Comstock RE, Harvey PH. Estimation of heritability and the degree of dominance in corn. Agron J. 1949;41:353–9. https://doi.org/10.2134/agronj1949.00021962004100080005x
  15. 15. Johnson HW, Robinson HF, Comstock RE. Estimates of genetic and environmental variability in soybean. Agron J. 1955;47:314–8. https://doi.org/10.2134/agronj1955.00021962004700070009x
  16. 16. Malek MA, Milan MAB, Islam MO, Hoque AMMM. Genetics, variability, heritability and genetic advance in pointed gourd (Trichosanthes dioica Roxb.). Bangladesh J Plant Breed Genet. 2007;20(1):47–52. https://doi.org/10.3329/bjpbg.v20i1.17026
  17. 17. Singh SR, Rajan S, Kumar D, Srivastava KK, Soni VK. Assessment of genetic variability and correlation in pointed gourd (Trichosanthes dioica Roxb.) genotypes for yield and yield attributing traits. Indian J Plant Genet Resour. 2024;37(3):447–53. https://doi.org/10.61949/0976-1926.2024.v37i03.06
  18. 18. Jena AK, Suseela T, Kiran TS, Sujatha RV. Studies on genetic variability, heritability and genetic advance in pointed gourd (Trichosanthes dioica Roxb.). Int J Curr Microbiol Appl Sci. 2017;6(8):1857–63. https://doi.org/10.20546/ijcmas.2017.608.219
  19. 19. Verma P, Maurya SK, Panchbhaiya A, Dhyani S. Studies on variability, heritability and genetic advance for yield and yield contributing characters in pointed gourd (Trichosanthes dioica Roxb.). J Pharmacogn Phytochem. 2017;6(3):734–8.

Downloads

Download data is not yet available.