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volume 46 issue 2 (june 2012) : 148 - 154

GENETIC ANALYSIS OF SEED YIELD AND COMPONENT CHARACTERS OVER ENVIRONMENTS IN CASTOR (Ricinus communis L.)

J
J.A. Patel
K
K.V. Patel
A
Alpesh R. Patel
1Regional Research Station, Anand Agricultural University, Anand-388 110 India

  • Submitted|

  • First Online |

  • doi

Cite article:- Patel J.A., Patel K.V., Patel R. Alpesh (2025). GENETIC ANALYSIS OF SEED YIELD AND COMPONENT CHARACTERS OVER ENVIRONMENTS IN CASTOR (Ricinus communis L.). Indian Journal of Agricultural Research. 46(2): 148 - 154. doi: .

ABSTRACT

The parents, hybrids and environments significantly differed among themselves for all the characters studied. The estimates of potence ratio and predictability ratio in respect to ó2gca and ó2sca  revealed preponderance of additive genetic variance for days to 50% flowering, number of node up to primary spike, effective length of primary spike, total number of capsules per plant, seed yield per plant and test weight of 100 seeds; Non additive genetic variance was preponded for days to 50 % maturity of primary spike and shelling out turn whereas, for number of capsules on primary spike only additive genetic variance was significant. The estimates of additive genetic variance more consistent over environments for all the characters; whereas, non additive genetic variances varied for all the characters except shelling out turn and oil content. The pistillate lines Geeta and SKP 84 and male parents SKI 270, DCS 47, SPS 44-1, EB 16 and SKI 147 were good general combiners for seed yield and important yield contributing characters. Crosses SKP 24 X SKI 270, VP 1 X DCS 47 and SKP 84 x SKI 202 were good specific combiners for seed yield per plant. Apart from heterosis breeding, population improvement for development of both pistillate and monoecious lines is suggested.

REFERENCES

  1. Chaudhari, K. N. (2006). Diallel analysis for seed yield and wilt resistance in castor (Ricinus communis L.). Ph. D. Thesis (Unpublished) submitted to S. D. Agricultural University, Sardarkrushinagar.
  2. Cockerham, C. C. (1954). An extension of concept of partitions hereditary variance for analysis of covariance among relatives when epistasis is present. Genetics, 39: 859-882.
  3. Cockerham, C. C. (1956). Analysis of quantitative gene action. Bookhaven symposia on Gaunt. Bio., 9: 56-68.
  4. Comstock, R. E. and Robinson, H. F. (1957). A breeding procedure designated to make maximum use of both general and specific combining ability. Agron. J., 41: 360-367.
  5. Kempthorne, O. (1957). An Introduction to Genetic Statistics. John Wiley and Sons, Inc., New York. pp. 468-470.
  6. Manivel, P.; Hussain, H. S. J. and Raveendran, T. S. (1998). Combining ability for earliness traits over environments in castor. Madras Agric. J., 85 (3-4): 157-160.
  7. Patel R.G. (1994a). Heterosis, combining ability and stability parameters in castor (Ricinus communis L.) Unpubl. Ph.D. Thesis, Gujarat Agricultural University, Sardar Krushi Nagar.
  8. Patel, B. N. (1994b). Line x tester analysis over environments in castor (Ricinus communis L.). Ph.D. Thesis (Unpublished) Submitted to Gujarat Agricultural University, Sardarkrushinagar.
  9. Singh, R. K. and Chaudhary, B. D. (1977). Biometrical methods in quantitative genetics. Kalyani Publishers, Ludhiana and Delhi. Pp 262-282.
  10. Solanki, S. S. and Joshi, P. (2000). Combining ability analysis over environments of diverse pistillate and male parents for seed yield and other traits in castor (Ricinus communis L.). Indian J. Genet., 60 (2): 201-212.
  11. Tank, C.J.; Jaimini, S. N. and Ravindrababu, Y. (2003). Combining ability analysis over environments in castor. Crop Res., 26 (1): 119-125.
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    volume 46 issue 2 (june 2012) : 148 - 154

    GENETIC ANALYSIS OF SEED YIELD AND COMPONENT CHARACTERS OVER ENVIRONMENTS IN CASTOR (Ricinus communis L.)

    J
    J.A. Patel
    K
    K.V. Patel
    A
    Alpesh R. Patel
    1Regional Research Station, Anand Agricultural University, Anand-388 110 India

    • Submitted|

    • First Online |

    • doi

    Cite article:- Patel J.A., Patel K.V., Patel R. Alpesh (2025). GENETIC ANALYSIS OF SEED YIELD AND COMPONENT CHARACTERS OVER ENVIRONMENTS IN CASTOR (Ricinus communis L.). Indian Journal of Agricultural Research. 46(2): 148 - 154. doi: .

    ABSTRACT

    The parents, hybrids and environments significantly differed among themselves for all the characters studied. The estimates of potence ratio and predictability ratio in respect to ó2gca and ó2sca  revealed preponderance of additive genetic variance for days to 50% flowering, number of node up to primary spike, effective length of primary spike, total number of capsules per plant, seed yield per plant and test weight of 100 seeds; Non additive genetic variance was preponded for days to 50 % maturity of primary spike and shelling out turn whereas, for number of capsules on primary spike only additive genetic variance was significant. The estimates of additive genetic variance more consistent over environments for all the characters; whereas, non additive genetic variances varied for all the characters except shelling out turn and oil content. The pistillate lines Geeta and SKP 84 and male parents SKI 270, DCS 47, SPS 44-1, EB 16 and SKI 147 were good general combiners for seed yield and important yield contributing characters. Crosses SKP 24 X SKI 270, VP 1 X DCS 47 and SKP 84 x SKI 202 were good specific combiners for seed yield per plant. Apart from heterosis breeding, population improvement for development of both pistillate and monoecious lines is suggested.

    REFERENCES

    1. Chaudhari, K. N. (2006). Diallel analysis for seed yield and wilt resistance in castor (Ricinus communis L.). Ph. D. Thesis (Unpublished) submitted to S. D. Agricultural University, Sardarkrushinagar.
    2. Cockerham, C. C. (1954). An extension of concept of partitions hereditary variance for analysis of covariance among relatives when epistasis is present. Genetics, 39: 859-882.
    3. Cockerham, C. C. (1956). Analysis of quantitative gene action. Bookhaven symposia on Gaunt. Bio., 9: 56-68.
    4. Comstock, R. E. and Robinson, H. F. (1957). A breeding procedure designated to make maximum use of both general and specific combining ability. Agron. J., 41: 360-367.
    5. Kempthorne, O. (1957). An Introduction to Genetic Statistics. John Wiley and Sons, Inc., New York. pp. 468-470.
    6. Manivel, P.; Hussain, H. S. J. and Raveendran, T. S. (1998). Combining ability for earliness traits over environments in castor. Madras Agric. J., 85 (3-4): 157-160.
    7. Patel R.G. (1994a). Heterosis, combining ability and stability parameters in castor (Ricinus communis L.) Unpubl. Ph.D. Thesis, Gujarat Agricultural University, Sardar Krushi Nagar.
    8. Patel, B. N. (1994b). Line x tester analysis over environments in castor (Ricinus communis L.). Ph.D. Thesis (Unpublished) Submitted to Gujarat Agricultural University, Sardarkrushinagar.
    9. Singh, R. K. and Chaudhary, B. D. (1977). Biometrical methods in quantitative genetics. Kalyani Publishers, Ludhiana and Delhi. Pp 262-282.
    10. Solanki, S. S. and Joshi, P. (2000). Combining ability analysis over environments of diverse pistillate and male parents for seed yield and other traits in castor (Ricinus communis L.). Indian J. Genet., 60 (2): 201-212.
    11. Tank, C.J.; Jaimini, S. N. and Ravindrababu, Y. (2003). Combining ability analysis over environments in castor. Crop Res., 26 (1): 119-125.
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