International Journal of Industrial Entomology and Biomaterials

Korean Society of Sericultural Science (한국잠사학회)
권호 표지

Manifestation of Hybrid Vigour and Combining Ability in Polyvoltine $\times$ Bivoltine Hybrids of Silkworm, Bombyx mori L.

  • Rao, D.Raghavendra (Central Sericultural Research and Training Institute) ;
  • Singh, Ravindra (Central Sericultural Research and Training Institute) ;
  • Premalatha, V. (Central Sericultural Research and Training Institute) ;
  • Kariappa, B.K. (Central Sericultural Research and Training Institute) ;
  • Rekha, M. (Central Sericultural Research and Training Institute)
  • Published : 2002.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

The general and specific combining abilities and hybrid vigour of seven polyvoltine breeds [BL24, BL62, BL6S, BL67, BL68, BL69, and Pure Mysore (PM)] with five bivoltine breeds (NB4D2, CSR2, CSR5, CSR18 and CSR19) were evaluated in a line ${times}$ tester design by analysing six quantitative traits viz., fecundity, yield 110,000 larvae both by number and weight, cocoon weight, shell weight and cocoon shell ratio. ANOVA estimates showed significant effects for all the traits indicating the role of both additive and non- additive gene actions. Estimation of GCA revealed that the breed BL67 exhibited significant positive effects toy all the six traits followed by BL68 for four important economic traits viz., fecundity, cocoon weight, shell weight and cocoon shell ratio. Among testers, CSR5 showed significant GCA effects for five traits whereas CSR2 exhibited for shell weight and shell ratio. Three hybrids viz., BL67${times}$ NB4D2, BL67 ${times}$CSR5 and BL67${times}$ CSR19 excelled in four quantitative traits for SCA. Majority of the hybrids expressed positive hybrid vigour for cocoon yield/10,000 larvae by weight, cocoon weight and shell weight. Four hybrids namely PM ${times}$ NB4D2, BL67 ${times}$NB4D2, BL67${times}$ CSR5 and BL67${times}$ CSR19 manifesting positive hybrid vigour for five economic traits were adjudicated as best Heterotic hybrids and recommended for commercial exploitation to increase the silk yield.

Keywords

References

  1. Bhargava, S. K., M. K. Majumdar and R. K. Datta (1995) Combining ability of seven silk technological characters in the mulberry silkworm, Bombyx mori. Boll Zool. 62, 359-362
  2. Datta, R. K. (1984) Improvement of silkworm races (Bombyx mori L.) in India. Sericologia 24, 393-415
  3. Datta, R. K. and G. D. Pershad (1988) Combining ability among multivoltine x bivoltine silkworm (Bombyx nwri L.) hybrids. Sericologia 28, 21-29
  4. Datta, R. K., D. Raghavendra Rao, K. P. Jayaswal, V. Premalatha, Ravindra Singh and B. K. Kahappa (2001) Heterosis in relation to combining ability in multivoltine and bivoltine strains of silkworm, Bombyx mori L. Indian J. Seric. 40, 1-6
  5. Jolly, M. S. (1983) Silkworm breeding in India, In: silkworm genetics and breeding. Natl. Semin. Silk Res. Dev. Bangalore pp l-ll
  6. Kalpana, G. V, P. J. Raju, G. Subramanya and G. Sreerama Reddy (1998) Synthesis of promising multivoltine races of silkworm, Proceedings of National Workshop held on March 18-19, 1994, G. Sreerama Reddy (ed.), Oxford & IBH Publishing Co. Pvt. Ltd., New Delhi, pp. 79-101
  7. Kalpana, G. V. and G. Sreerama Reddy (1998) Studies on the combining ability of the new multivoltine race MU953 with tropical bivoltine races. Sericologia 38, 309-316
  8. Kempthome, O. (1957) An introduction to genetic statistics. pp. 208-341, John Wiley and Sons Inc., London
  9. Krishnaswami, S. (1978) New Technology of silkworm rearing. Bull. Central Silk Board Bangalore 2, 1-23
  10. Kumar, P., R. Bhutia and M. M. Ahsan (1994) (Bombyx mori L.). Indian J. Genet. 54, 253-257
  11. Naseema Begum, A., S. K. Bhargava, M. M. Ahsan, R. K. Datta and D. Raghavendra Rao (1997) Line x tester analysis for economic characters in the bivoltine silkworm, Bombyx mori L. Korean J. Seric. Sci. 39, 205-209
  12. Noamani, M. K. R., K. Sengupta, J. Nagaraju, K. Vijayaraghavan, V. Premalatha, Ravindra Singh and P. R. M. Rao (1990) Breeding of multivoltine breeds of silkworm, Bombyx mori L. for high cocoon weight and shell weight, Indian J. Seric. 29, 227-232
  13. Pershad, G. D., R. K. Datta, S. K. Bhargavam, H. Vijayakumar and M. S. Jolly (1986) Combining ability analysis in multivoltine races of silkworm, Bombyx mori L. Sericologia 26, 307-315
  14. Petkov, N. (1975) Investigation on the combining ability of some inbred lines of Bombyx mori L. Genet. Sel. 8, 128-136
  15. Raghavendra Rao, D. V. Premalatha, Ravindra Singh, B. K. Kariappa, K. P. Jayaswal, P. Rama Mohana Rao and R. K. Datta (2001) Studies on manifestation of hybrid vigour in polyvoltine x bivoltine crosses of silkworm, Bombyx mori L. J. Expt. Zool. 4, 219-232
  16. Rao, P. R. M., Ravindra Singh, K. P. Jayaswal, S. N. Chatterjee and R. K. Datta (1998) Evaluation of some Indian and exotic low yielding silkworm (Bombyx mori L.) breeds through diallel cross and its significance for sericulture in dry zones. J. Ent. Res. 22, 23-33
  17. Ram, D., G. Kallo and M. Singh (1998) Combining ability of quantitative characters in bittergourd (Momordica charnatia). Indian J. Agric. Sci. 69, 122-125
  18. Ravindra Singh, D. Raghavendra Rao, V. Premalatha, B. K. Kariappa, K. P. Jayaswal and R. K. Datta (2001) Evaluation of combining ability in hybrids between low, medium and high cocoon weight polyvoltine and bivoltine breeds of silkworm, Bombyx mori L. Serocologia 41, 57-64
  19. Ravindra Singh, G. V. Kalpana, P. Sudhakara Rao, M. M. Ahsan, R. K. Datta and M. Rekha (2000) Studies on combining ability and heterosis in the silkworm, Bombyx mori L. Indian J. Seric. 39, 43-48
  20. Razdon, J. L., A. A. Siddiqui, R. K. Bali and P. Mukherjee (1994) Study on the identification of region specific heterotic crosses in Bombyx mori L. Sericologia 34, 249-260
  21. Sarkar, A., N. K. Das and B. C. Das (1991) Diallel cross analysis of cocoon weight in silkworm, Bombyx mori L. Sericologia 31, 301-306
  22. Satenahalli, S. B., R. Govindan and J. V. Goud. (1989) Genetic analysis of some quantitative traits by diallel cross in silkworm, Bombyx mori L. Sericologia 29, 333- 342
  23. Sidhu, N. S., K. Singh, S. Venugopal Pillai and R. Sreenivasan (1969) Performance of the some of the breeds of silkworm, Bombyx mori L. Silkworm Information Bulletin 1, 41-53
  24. Subba Rao, G. and V. Sahai (1989) Combining ability and heterosis studies in Bivoltine strains of silkworm Bombyx mori L. Uttar Pradesh J. Zool. 9, 150-164