Exploring the yield and yield contributing traits variability in dolichos bean (Lablab purpureus): A character association and path analysis approach
![](/public/icon/gor.png)
![](/public/icon/pdf.png)
Keywords:
Correlation, Genetic advance, Heritability, Path analysisAbstract
An experiment was conducted during 2019–20 and 2020–21 at ICAR-Central Institute for Subtropical Horticulture, Lucknow, Uttar Pradesh to evaluate the magnitude of variability in dolichos bean [Lablab purpureus (L.) Sweet] genotypes for important horticultural traits and their associations. The observed range and mean variations of the studied traits revealed a significant genetic diversity among the genotypes. The narrow gap in the genotypic (GCV) and the phenotypic coefficient of variation (PCV) for delineated characters indicated that they are governed by genetic factors, and environmental factors had little or no impact on the phenotypic expression of these traits. The traits including pod yield, days taken to first flowering, weight of pod, plant height, and pod width, showed positive GCV, indicating the presence of additive genes action. Traits such as pod weight, days taken to first flowering, and pod width displayed high heritability and moderate genetic advance, suggesting that the high heritability of these traits is due to the effects of additive genes and that genetic gain can be expected through the phenotypic selection. The higher genotypic correlations revealed an inherent association between the traits. Therefore, the selection criterion for high yield was proposed based on the strong character association between plant height, number of pods/cluster, pod width, and pod weight. The number of pods/plant, followed by the number of clusters/plant had the highest direct positive effect on yield. Consequently, pod yield may be increased through selection of heavier pods, more clusters/ plant, and more pods/cluster.
Downloads
References
Afsan N and Roy A K. 2020. Genetic variability, heritability and genetic advance of some yield contributing characters in lablab bean [Lablab purpureus (L.) Sweet]. Journal of Bio-Science 28: 13–20.
Al-Jibouri H A, Millar P A and Robinson H F. 1955. Genotypic, environmental variance and covariance in upland cotton cross of inter specific origin. Agronomy Journal 50: 533–36.
Allard R W. 1960. Principles of Plant Breeding, pp. 485, John Wiley and Sons London, England.
Bendale V W, Topare S S, Bhave S G, Mehta J K and Madhav R R. 2004. Genetic analysis of yield and yield components in lablab bean [Lablab purpureus (L.) Sweet]. Orissa Journal of Horticulture 32: 99–101.
Chaitanya V, Reddy R V S K, Pandravada S R and Reddy P K. 2011. Evaluation of dolichos bean (Dolichos lablab L. var. typicus) germplasm for growth, flower pod and seed traits. Haryana Journal of Horticultural Sciences 40 (1–2): 93–97.
Chauhan S and Kundu S. 2021. Estimation of genetic variability, heritability and genetic advance for yield and yield attributing traits in dolichos bean (Dolichos lablab L.). International Journal of Environment Agriculture and Biotechnology 6: 88–95.
Desai S B, Bendale V W, Bhave S G, Madav R R and Mehta J L. 2003. Hetrosis of growth and development characters in lablab bean (Lablab purpureus L.). Research on Crops 4(3): 366–72.
Dewey D R and Lu K H. 1959. A correlation and path coefficient analysis of created wheat gross production. Agronomy Journal 51: 515–18.
Dhillon T S and Kumar Ajay. 2015. Variability, heritability, correlation and genetic divergence studies in dolichos bean (Lablab purpureus L.). Journal of Horticultural Science 10(2): 147–53.
Gomez K A and Gomez A A. 1984. Statistical Procedures for Agricultural Research, 2nd edn. John Wiley and Sons Inc, New York.
Johnson H W, Robinson H F and Comstock R E. 1955. Estimate of genetic and environmental variability in Soybean. Agronomy Journal 47: 314–18.
Magalingam V, Yassin M and Kumar S R. 2013. Genetic variability and character association in dolichos bean. Journal of Agriculture 11(2): 161–71.
Miller P A, Williams J C, Robinson, H F and Comstock R E. 1958. Estimate of genotypic and environment variance in upland cotton and the implications and selections. Agronomy Journal 50: 126–31.
Morris J B. 2009. Morphological and reproductive characterization in hyacinth bean (Lablab purpureus L.) germplasm chemically proven nutracuetical and pharmaceutical traits for use as a medical food. Journal of Dietary Supplement 6(3): 263–79.
Roy S K, Karim M A, Islam A K, Bari M N, Mian M A K and Hidayak T. 2006. Relationship between yield and its component characters of bush bean. South Pacific Studies 27(2): 13–23.
Singh R, Sharma D, Trivedi J and Nair S. 2022. Evalution of dolichos bean (Lablab purpureus L.) for pod yield and its traits. The Pharma Innovation 11(8): 293–98.
Singh S R, Ahmed N, Kumar D, Trvedi A K, Singh A and Mir M. 2020. Assessment of genetic variability of chilli in western Himalayan region. Journal of Environmental Biology 41: 266–73.
Downloads
Submitted
Published
Issue
Section
License
Copyright (c) 2024 The Indian Journal of Agricultural Sciences
![Creative Commons License](http://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.