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Current IssueEditorial BoardOnline First ArticlesArchive

volume 37 issue 2 (april 2014) : 126-132,   Doi: 10.5958/j.0976-0571.37.2.019

GENETIC VARIABILITY AND INTER-CHARACTERS ASSOCIATIONS STUDIES IN THE GERMPLASM OF COWPEA [Vigna unguiculata (L.) Walp] IN FRAGILE CLIMATE OF WESTERN RAJASTHAN, INDIA

O
Om Vir*
A
A.K. Singh
1National Bureau of Plant Genetic Resources Regional Research Station, Jodhpur 342 003, India
Cite article:- Vir* Om, Singh A.K. (2025). GENETIC VARIABILITY AND INTER-CHARACTERS ASSOCIATIONS STUDIES IN THE GERMPLASM OF COWPEA [Vigna unguiculata (L.) Walp] IN FRAGILE CLIMATE OF WESTERN RAJASTHAN, INDIA. Legume Research. 37(2): 126-132. doi: 10.5958/j.0976-0571.37.2.019.

ABSTRACT

The 33 indigenous and exotic accessions of cowpea were evaluated in a randomized complete block design with three replications during summer and kharif seasons of fragile climate of Rajasthan to estimate the presence of genetic variability, inter-characters associations, to identify a suitable short duration accession for cultivation during summer and to compare the relative performance of the genotypes in two seasons.  The high degree of genetic variability was estimated during both seasons for seed yield per plant (g), 100-seed weight (g.), pod length, number of seeds per pod, number of pods per plant, number of pods per cluster, number of branches per plant, number of cluster per plant, plant height (cm.), number of days to 50% flowering and number of days to maturity. The moderate to high heritabilities coupled with moderate to high expected genetic advance were observed for  all studied traits. Number of seeds per pod, number of pods per plant, number of pods per cluster, number of cluster per plant, days to 50% flowering and days to maturity had positive and significant correlations with seed yield per plant. The accession C-720 had been identified to be of short duration of 62 days.  The accessions C-791, C-896, C-721, C-1023, and C-727 during summer season and accessions C-791, C-731, C-875, C-720 and C-1023 during kharif season exhibited superiority in terms of seed yield per plant over best check.

REFERENCES

  1. Anbumalarmathi, J., Sheeba, A. and Deepasankar, P. (2005). Genetic variability and interrelationship studies in cowpea [Vigna unguiculata (L.) Walp.]. Res. Crops,6: 517-519.
  2. Baghizadeh, A., Tallei, A. and Ghasemi, E. (2010). Evaluation of genetic variability for yield and some quantitative traits in Iran cowpea collection. Agriculture and Biology Journal of North America, 1: 625-629.
  3. Boukar, O., Massawe, F., Muranaka, S., Franco, J., Maziya-Dixon, B., Singh, B. and Fatokun, C. (2011). Evaluation of cowpea germplasm lines for protein and mineral concentrations in grains. Plant Genetic Resources: Characterization and Utilization, 9: 515-522.
  4. Empig, L.T., Lantican, R.M. and Escuro, P.B. (1970). Heritability estimates of quantitative characters in mungbean [Vigna radiata (L.) Wilczek]. Crop Sci., 10 :240-241.
  5. Eswaran, R. S., Thirugnana Kumar and Venkatesan, M. (2007). Genetic variability and association of component characters for earliness in cowpea {Vigna unguiculata (L.) Walp.}. Legume Res., 30: 17-23.
  6. Girish, G., Viswanatha, K.P., Manjunath, A. and Yogeesh, L.N.( 2006). Genetic variability, heritability and genetic advance analysis in cowpea [Vigna unguiculata (L.) Walp].J. Envt. Ecol., 24: 1172-1174.
  7. Henry, A., Kumar, D. and Singh, N. B.(2003). Variability and path analysis in grain cowpea.Advan. Arid Leg. Res., 59-62.
  8. Imrie, B.C., Butler, K.L. (2005). An analysis of variability and genotype environment interaction in mungbean (Vigna radiata L) in southeastern Queensland. Australian J. Agric. Res., 33:523–30.
  9. Kumari, R.U., Usharani, K.S., Suguna, R. and Anandakumar, C.R. (2010). Relationship between the yield contributing characters in cowpea for grain purpose [Vigna unguiculata (L.) Walp.]. Electronic Journal of Plant Breeding, 1: 882-884.
  10. Kumawat, K. C. and Raje, R. S. (2005). Association analysis in cowpea [Vigna unguiculata (L.) Walp.]. J. Arid Legumes, 2: 47-49.
  11. Malarvizhi, D., Swaminathan, C., Robin, S. and Kannan, K. (2005). Genetic variability Studies in fodder cowpea [Vigna unguiculata (L.) Walp.]. Legume Res., 28: 52-54.
  13. Manggoel, W., Uguru, M. I., Ndam, O. N. and Dasbak, M. A. (2012). Genetic variability, correlation and path coefficient analysis of some yield components of ten cowpea [Vigna unguiculata (L.) Walp] accessions. J. Pl. Breed. & Crop Sci., 4: 80-86.
  14. Mittal, V. P. and Paramjit Singh (2005). Component analysis of seed yield and other characters in cowpea. J. Arid Leg., 2: 408-409.
  15. Nwofia, M., Nwanebu and Agbo, C.U. (2012). Variability and Inter- Relationships Between Yield and Associated Traits in Cowpea (Vigna unguiculata (L.) Walp as Influenced by Plant Populations. World J. Agri. Sci., 8:396-402.
  16. Omoigui, L. O., Ishiyaku, M. F., Kamara, A. Y., Alabi, S. O. and Sg, M. (2006). Evaluation Of cowpea accessions for the Southern Guinea savannah. Trop. Sci., 46: 227-232.
  17. Pandey, Indradeo. (2007). Genetic diversity in grain cowpea (Vigna unguiculata (L.) Walp.).Legume. Res., 30 : 92-97.
  18. Sahai, G., Malaviya,D.R. and Singh, U.P. (2013). Morphological traits associations with fodder and seed yield in Vigna unguiculata (L.). J. Env.Bio., 34: 139-145.
  19. Shahid Ahmed, Zargar, M. A. and Tahir Ali. (2005). Genetic variability, heritability, geneticadvance for seed yield and component traits in cowpea. Natl. J. of Plant Imprt., 7: 85-87.
  20. Singh, R.K. and Chaudhry, B.D. (1985). Biometrical methods in quantitative genetic analysis. Kalyani Pub. Ludhiana, New Delhi, India
  21. Suganthi, S and Murugan, S. (2007). Variability studies in cowpea [Vigna unguiculata (L.)Walp.]. Crop Res., 33 : 195-197.
  22. Suganthi, S. and Murugan, S. (2008). Association analysis in cowpea (Vigna unguiculata (L.) Walp). Legume Res., 31 : 130-132.
  23. Sulnathi, G., Prasanthi, L., and Sekhar, M. R. (2007). Character contribution to diversity in cowpea. Legume Res., 30 : 70-72.
  24. Udensi, O., Edu, E.A. and Ikpeme, E,V, (2011). Optimization of correlation and coefficient analyses as selection techniques for yield in locally grown cowpea [Vigna unguiculata (L) Walp.]. International Journal of Current Research, 3:162-165.
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    volume 37 issue 2 (april 2014) : 126-132,   Doi: 10.5958/j.0976-0571.37.2.019

    GENETIC VARIABILITY AND INTER-CHARACTERS ASSOCIATIONS STUDIES IN THE GERMPLASM OF COWPEA [Vigna unguiculata (L.) Walp] IN FRAGILE CLIMATE OF WESTERN RAJASTHAN, INDIA

    O
    Om Vir*
    A
    A.K. Singh
    1National Bureau of Plant Genetic Resources Regional Research Station, Jodhpur 342 003, India
    Cite article:- Vir* Om, Singh A.K. (2025). GENETIC VARIABILITY AND INTER-CHARACTERS ASSOCIATIONS STUDIES IN THE GERMPLASM OF COWPEA [Vigna unguiculata (L.) Walp] IN FRAGILE CLIMATE OF WESTERN RAJASTHAN, INDIA. Legume Research. 37(2): 126-132. doi: 10.5958/j.0976-0571.37.2.019.

    ABSTRACT

    The 33 indigenous and exotic accessions of cowpea were evaluated in a randomized complete block design with three replications during summer and kharif seasons of fragile climate of Rajasthan to estimate the presence of genetic variability, inter-characters associations, to identify a suitable short duration accession for cultivation during summer and to compare the relative performance of the genotypes in two seasons.  The high degree of genetic variability was estimated during both seasons for seed yield per plant (g), 100-seed weight (g.), pod length, number of seeds per pod, number of pods per plant, number of pods per cluster, number of branches per plant, number of cluster per plant, plant height (cm.), number of days to 50% flowering and number of days to maturity. The moderate to high heritabilities coupled with moderate to high expected genetic advance were observed for  all studied traits. Number of seeds per pod, number of pods per plant, number of pods per cluster, number of cluster per plant, days to 50% flowering and days to maturity had positive and significant correlations with seed yield per plant. The accession C-720 had been identified to be of short duration of 62 days.  The accessions C-791, C-896, C-721, C-1023, and C-727 during summer season and accessions C-791, C-731, C-875, C-720 and C-1023 during kharif season exhibited superiority in terms of seed yield per plant over best check.

    REFERENCES

    1. Anbumalarmathi, J., Sheeba, A. and Deepasankar, P. (2005). Genetic variability and interrelationship studies in cowpea [Vigna unguiculata (L.) Walp.]. Res. Crops,6: 517-519.
    2. Baghizadeh, A., Tallei, A. and Ghasemi, E. (2010). Evaluation of genetic variability for yield and some quantitative traits in Iran cowpea collection. Agriculture and Biology Journal of North America, 1: 625-629.
    3. Boukar, O., Massawe, F., Muranaka, S., Franco, J., Maziya-Dixon, B., Singh, B. and Fatokun, C. (2011). Evaluation of cowpea germplasm lines for protein and mineral concentrations in grains. Plant Genetic Resources: Characterization and Utilization, 9: 515-522.
    4. Empig, L.T., Lantican, R.M. and Escuro, P.B. (1970). Heritability estimates of quantitative characters in mungbean [Vigna radiata (L.) Wilczek]. Crop Sci., 10 :240-241.
    5. Eswaran, R. S., Thirugnana Kumar and Venkatesan, M. (2007). Genetic variability and association of component characters for earliness in cowpea {Vigna unguiculata (L.) Walp.}. Legume Res., 30: 17-23.
    6. Girish, G., Viswanatha, K.P., Manjunath, A. and Yogeesh, L.N.( 2006). Genetic variability, heritability and genetic advance analysis in cowpea [Vigna unguiculata (L.) Walp].J. Envt. Ecol., 24: 1172-1174.
    7. Henry, A., Kumar, D. and Singh, N. B.(2003). Variability and path analysis in grain cowpea.Advan. Arid Leg. Res., 59-62.
    8. Imrie, B.C., Butler, K.L. (2005). An analysis of variability and genotype environment interaction in mungbean (Vigna radiata L) in southeastern Queensland. Australian J. Agric. Res., 33:523–30.
    9. Kumari, R.U., Usharani, K.S., Suguna, R. and Anandakumar, C.R. (2010). Relationship between the yield contributing characters in cowpea for grain purpose [Vigna unguiculata (L.) Walp.]. Electronic Journal of Plant Breeding, 1: 882-884.
    10. Kumawat, K. C. and Raje, R. S. (2005). Association analysis in cowpea [Vigna unguiculata (L.) Walp.]. J. Arid Legumes, 2: 47-49.
    11. Malarvizhi, D., Swaminathan, C., Robin, S. and Kannan, K. (2005). Genetic variability Studies in fodder cowpea [Vigna unguiculata (L.) Walp.]. Legume Res., 28: 52-54.
    13. Manggoel, W., Uguru, M. I., Ndam, O. N. and Dasbak, M. A. (2012). Genetic variability, correlation and path coefficient analysis of some yield components of ten cowpea [Vigna unguiculata (L.) Walp] accessions. J. Pl. Breed. & Crop Sci., 4: 80-86.
    14. Mittal, V. P. and Paramjit Singh (2005). Component analysis of seed yield and other characters in cowpea. J. Arid Leg., 2: 408-409.
    15. Nwofia, M., Nwanebu and Agbo, C.U. (2012). Variability and Inter- Relationships Between Yield and Associated Traits in Cowpea (Vigna unguiculata (L.) Walp as Influenced by Plant Populations. World J. Agri. Sci., 8:396-402.
    16. Omoigui, L. O., Ishiyaku, M. F., Kamara, A. Y., Alabi, S. O. and Sg, M. (2006). Evaluation Of cowpea accessions for the Southern Guinea savannah. Trop. Sci., 46: 227-232.
    17. Pandey, Indradeo. (2007). Genetic diversity in grain cowpea (Vigna unguiculata (L.) Walp.).Legume. Res., 30 : 92-97.
    18. Sahai, G., Malaviya,D.R. and Singh, U.P. (2013). Morphological traits associations with fodder and seed yield in Vigna unguiculata (L.). J. Env.Bio., 34: 139-145.
    19. Shahid Ahmed, Zargar, M. A. and Tahir Ali. (2005). Genetic variability, heritability, geneticadvance for seed yield and component traits in cowpea. Natl. J. of Plant Imprt., 7: 85-87.
    20. Singh, R.K. and Chaudhry, B.D. (1985). Biometrical methods in quantitative genetic analysis. Kalyani Pub. Ludhiana, New Delhi, India
    21. Suganthi, S and Murugan, S. (2007). Variability studies in cowpea [Vigna unguiculata (L.)Walp.]. Crop Res., 33 : 195-197.
    22. Suganthi, S. and Murugan, S. (2008). Association analysis in cowpea (Vigna unguiculata (L.) Walp). Legume Res., 31 : 130-132.
    23. Sulnathi, G., Prasanthi, L., and Sekhar, M. R. (2007). Character contribution to diversity in cowpea. Legume Res., 30 : 70-72.
    24. Udensi, O., Edu, E.A. and Ikpeme, E,V, (2011). Optimization of correlation and coefficient analyses as selection techniques for yield in locally grown cowpea [Vigna unguiculata (L) Walp.]. International Journal of Current Research, 3:162-165.
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