HOME JOURNALS CONTACT

Pakistan Journal of Biological Sciences

Year: 2005 | Volume: 8 | Issue: 1 | Page No.: 68-72
DOI: 10.3923/pjbs.2005.68.72
Combining Ability Estimation in Popular Bivoltine Mulberry Silkworm, Bombyx mori L.
M. Iftekher Islam, Ismat Ara Ali and Tajimul Haque

Abstract: In a line x tester programme, eight existing and four newly developed popular bivoltines were utilized as line and tester to estimate the combining abilities in respect of effective rate of rearing by number and weight, single cocoon weight, shell weight and shell ratio. Among the lines, BSRTI-4, BSRTI-5 and BSRTI-7 were emerged as the best general combiners while CH-BV2 exhibited significantly higher general combining for effective rate of rearing by weight, single cocoon weight, shell weight and shell ratio (%), among testers. Here silkworm combinations, BSRTI-4 x CH-BV2, BSRTI-5 x CH-BV2 and BSRTI-7 x CH-BV2 exhibited significant positive gca effect for most of the economic characters. Hence these crosses may be recommended for superior quality bivoltine silk production as per international grade in the pre and post winter rearing seasons of Bangladesh.

Fulltext PDF

How to cite this article
M. Iftekher Islam, Ismat Ara Ali and Tajimul Haque, 2005. Combining Ability Estimation in Popular Bivoltine Mulberry Silkworm, Bombyx mori L.. Pakistan Journal of Biological Sciences, 8: 68-72.

Keywords: Bombyx mori L, combining ability and line* tester

REFERENCES
  • Krishnaswami, S., M.S. Jolly and S. Subba Rao, 1964. Diallel analysis of quantitative characters in multivoltine races of silkworm. Indian J. Genet., 24: 213-222.

  • Gamo, T. and T. Hirabayashi, 1983. Genetic analysis of growth rate, population rate and some quantitative characters by diallel cross in silkworm, Bombyx mori L. Japan J. Breed., 33: 178-190.

  • Gamo, T., Y. Otsuka, T. Fujishima, T. Hirobe and Y. Tazima, 1985. Estimation of combining ability and genetic analysis by diallel crosses between regional races of silkworm, I. Rearing performances of cocoon yields. Tech. Bull. Ser. Expt. Sta., 126: 93-120.

  • Gamo, T., Y. Otsuka, T. Fujishima, T. Hirobe and Y. Tazima, 1985. Estimation of combining ability and genetic analysis by diallel crosses between regional races of silkworm, 2. Shape and size of cocoon. Tech. Bull. Ser. Expt. Sta., 126: 121-135.

  • Hirabayashi, T. and T. Gamo, 1985. Study on the combining ability of Japanese and Chinese silkworm races with different voltinism by diallel cross. III. Shape and Size of cocoon and their genetic analysis. Tech. Bull. Ser. Expt. Sta., 125: 91-104.

  • Siddiqui, A.A., A.K. Sengupta, A. Kumar, D.P.D. Mohapatra and K. Sengupta, 1988. Studies on the genetic architecture and gene actions involving yield components in diallel populations of tropical tasar silkworm, Anthera mylitta D. Sericologia, 98: 107-113.

  • Subba Rao, G. and V. Sahai, 1989. Combining ability and heterosis in bivoltine strains of silkworm. Bombyx mori L. Uttara Pradesh J. Zool., 9: 150-164.

  • Satenalli, S.B., R. Govindar and J.V. Goud, 1989. Genetic analysis of some quantitative traits by diallel cross in silkworm, Bombyx mori L. Sericologia, 29: 333-342.

  • Sarkar, A., N.K. Das and B.C. Das, 1991. A diallel cross analysis of the cocoon weight in the silkworm, Bombyx mori. Sericologia, 31: 301-309.
    Direct Link    

  • Bhargava, S.K., V. Thaigarayan, M. Ramesh Babu and B. Nagaraja, 1993. Combining ability and genetic analysis of quantitative traits in silkworm, Bombyx mori L. J. Genet. Breed., 46: 327-330.

  • Lea, H.Z., 1998. Combining ability and heritabilty estimation for Sri Lanka stock of mulberry silkworm, Bombyx mori L. Sericologia, 38: 425-436.

  • Datta, R.K. and G.D. Pershad, 1988. Combining ability among multivoltine H bivoltine silkworm, Bombyx mori L. Sericologia, 28: 21-29.

  • Gupta, B.K., M. Verma, V.K. Kharoo and K. Sinhh, 1992. Promising Bi H Bi hybrids of silkworm, Bombyx mori L. Sericologia, 32: 197-203.

  • Subba Rao, G., 1983. Line H tester analysis of some characters in bivoltine silkworm. Proceedings of the National Seminar or Silk Research and Development, Mar. 10-13, Central Silk Board, Bangalore, Indian, pp: 15-15.

  • Suba Rao, G. and V. Sahai, 1990. Combining ability and heterosis in bivoltine stains of silkworm, Bombyx mori L. Uttara Pradesh J. Zool., 9: 150-164.

  • Singh, R., D.R. Rao, V. Premalatha, S. Mondal, B.K. Kariappa, K.P. Jayaswal and R.K. Datta, 2001. Evaluation of combining ability in hybrid between low, medium and high cocoon weight of polyvoltine and bivoltine breeds of silkworm. Indian Silk, 39: 5-6.

  • Ravindra, S., V. Premalatha, D. Raghavendra Rao, B.K. Kariappa, K.P. Jayaswal and R.K. Datta, 2001. Line H tester analysis in sex-limited strains of mulberry silkworm, Bombyx mori L. with coloured cocoons. Indian J. Seric., 40: 39-43.

  • Nahar, J. and M. Khalequzzaman, 1994. Studies on the F1 hybrids of silkworm Bombyx mori L. I. combining ability of some characters among multivoltine and bivoltine varieties. Univ. J. Zool. Rajshahi Univ., 13: 49-54.

  • Rahman, S.M. and M.S. Jahan, 1997. Heterosis and combining ability estimates for cocoon breadth in silkworm, Bombyx mori L. Bull. Sericult. Res., 8: 7-11.

  • Kempthorne, O., 1957. An Introduction to Genetic Statistics. 1st Edn., John Wiley and Sons, New York, USA., Pages: 545

  • Krishnaswami, S., 1978. New Technology of Silkworm Rearing. CSRTI, Mysore, pp: 1-23

  • Rajara, M.P. and R.V. Maheshwari, 1996. Combining abilities in wheat using line H tester analysis. Madras Agric. J., 83: 107-110.

  • Kurian, A. and K.V. Peter, 1995. Line H tester analysis for yield and processing characteristics in tomato. J. Trop. Agric., 33: 23-26.

  • Shanmugavalli, N. and I.D. Vigendra, 1996. Line H tester analysis of combining ability in cotton. Madras Agric. J., 82: 449-452.

  • Govindan, R., S.B. Magadum and S.B. Satenahalli, 1987. Breeding with some polyvoltine and bivoltine strains of the silkworm Bombyx mori L. Sericologia, 27: 597-604.

  • Strunnikov, V.A., 1986. Nature of heterosis and combing ability in the silkworm. Theor. Applied Genet., 72: 503-512.

  • Pershad, G.D., R.K. Datta, H.V. Kumar, S.K. Bhargava and M.S. Jolly, 1986. Performance of some multivoltine races of Bombyx mori L. Sericologia, 26: 259-301.

  • Jolly, M.S., V.N. Bardaiyar, S.S. Sinha and J.L. Razdan, 1972. Performance of the four races of antheraca mylitta D. in relation to triallel crossing system. Ind. J. Seric., 11: 58-62.

  • Bhargava, S.K., E. Rajalakshmi and V. Thiagarajan, 1994. An evaluation index for silk yield contributing traits in Bombyx mori L. Indian Text., 105: 83-84.

  • Rajlakshmi, E., T.P.S. Chauhan, V. Thiagarajan, V. Lakshmanan and C.K. Kamble, 1997. Line H tester analysis of combing ability in new genotypes of bivoltine silkworm, Bombyx mori L. Indian J. Agric. Sci., 67: 1-4.

  • Chauhan, T.P.S., V. Lakshmanan and E. Rajalakshmi, 2000. Combining ability studies in bivoltine silkworm Bombyx mori L. Indian J. Seric., 39: 127-130.

    • © Science Alert. All Rights Reserved