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volume 42 issue 4 (december 2008) : 235-243

EVALUATION AND SELECTION OF BREEDING RESOURCE MATERIAL OF BIVOLTINE SILKWORM BOMBYX MORI L. SUITABLE TO TROPICAL CONDITIONS

H
H. Lakshmi
C
Chandrashekharaiah
1Andhra Pradesh State Sericulture Research and Development Institute, Kirikera, Hindupur - 515 212, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Lakshmi H., Chandrashekharaiah (2025). EVALUATION AND SELECTION OF BREEDING RESOURCE MATERIAL OF BIVOLTINE SILKWORM BOMBYX MORI L. SUITABLE TO TROPICAL CONDITIONS. Indian Journal of Agricultural Research. 42(4): 235-243. doi: .

ABSTRACT

Breeding strategies directed towards the development of hardy bivoltine races to improve the
quality and unit production of silk, warrant the selection of suitable parental material and their
effective utilization. In this direction, forty seven bivoltine breeds maintained as germplasm at
Andhra Pradesh State Sericulture Research Institute, Hindupur were reared under summer (high
temperature (30 - 36°C) and low humidity (50 - 55%) conditions. Nine quantitative and qualitative
traits of the breeds are considered for evaluation based on the Joint Scoring index method. Based
on the evaluation, twenty bivoltine breeds comprising of ten oval breeds which scored lower values
viz., APS5 (2.5764), APS7 (3.3050), APS19 (3.6508), APS11 (4.0610), APS9 (4.1034), APS31 (4.2272),
APS27 (4.2939), APS45 (4.2956), APS39 (4.5588) and APS17 (4.7332) (oval) and ten peanut breeds for
APS4 (3.1863), APS8 (3.2886), APS32 (3.4138), APS24 (3.5794), APS12 (3.8078), APS16 (3.9715)
APS18 (4.1263), APS62 (4.2164), APS6 (4.2656) and APS10 (4.3777) were adjudicated as potential
breeding resource material for initiation of breeding programme for the development of bivoltine
silkworm hybrids suitable for tropical conditions.

KEYWORDS

    REFERENCES

    1. Arunachalam, V. and Bandyopadhyay, A. (1984). Indian J. Genet., 44:419-424.
    2. Chandrashekharaiah and Ramesh Babu, M. (2003). In: Concept papers. Mulberry silkworm Breeders Summit held at APSSRDI, Hindupur, 18-19th July, 03. p. 6-13.
    3. Datta, R. K. (1984). Sericologia. 24:393-415.
    4. Datta, R. K. et al. (2000). Sericologia. 40:151-167.
    5. Kalpana, G.V. (1992). Ph.D thesis. University of Mysore, Mysore.
    6. Kogure, M. (1993). J. Dept. Agric., 4:1-93.
    7. Krishna Rao, S. et al. (2003) In: Abstra., National Conference on Tropical Sericulture for Global Competitiveness,
    8. CSR&TI, Mysore, 5-7th November, p.19.
    9. Naseema Begum, A. et al. (2001). Int. J. Indust. Entomol., 2:111-117.
    10. Vol. 42, No. 4, 2007 243
    11. Nirmal Kumar, S. and Sreerama Reddy, G. (1998) Evaluation and Selection of Potential Parents for Silkworm Breeding. Oxford & IBH Publi. Co., Calcutta.
    12. Nirmal Kumar S. (1995) Ph.D Thesis. University of Mysore, Mysore.
    13. Ramesh Babu, M. et al. (2001). Bull. Indian Acad. Seric., 5:9-17.
    14. Ramesh Babu, M. et al. (2002). Int. J. Indust., Entomol., 5(1):37-43.
    15. Sengupta, K. et al. (1971). Indian J. Seric., 10:6-13.
    16. Subba Rao (1988). In: Proc. Int. Cong. Trop. Seric. Prac., Part-IV, pp 33-39.
    17. Sudhakara Rao, P. et al. (2001). Indian J. Indust. Entomol., 3:31-35.
    18. Sudhakara Rao, P. et al. (2002). Int. J. Indust. Entomol., 4:37-41.
    19. Thiagarajan, V. et al. (1993). Sericologia. 33:559-565.
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    Indian Journal of Agricultural Research
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      volume 42 issue 4 (december 2008) : 235-243

      EVALUATION AND SELECTION OF BREEDING RESOURCE MATERIAL OF BIVOLTINE SILKWORM BOMBYX MORI L. SUITABLE TO TROPICAL CONDITIONS

      H
      H. Lakshmi
      C
      Chandrashekharaiah
      1Andhra Pradesh State Sericulture Research and Development Institute, Kirikera, Hindupur - 515 212, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Lakshmi H., Chandrashekharaiah (2025). EVALUATION AND SELECTION OF BREEDING RESOURCE MATERIAL OF BIVOLTINE SILKWORM BOMBYX MORI L. SUITABLE TO TROPICAL CONDITIONS. Indian Journal of Agricultural Research. 42(4): 235-243. doi: .

      ABSTRACT

      Breeding strategies directed towards the development of hardy bivoltine races to improve the
      quality and unit production of silk, warrant the selection of suitable parental material and their
      effective utilization. In this direction, forty seven bivoltine breeds maintained as germplasm at
      Andhra Pradesh State Sericulture Research Institute, Hindupur were reared under summer (high
      temperature (30 - 36°C) and low humidity (50 - 55%) conditions. Nine quantitative and qualitative
      traits of the breeds are considered for evaluation based on the Joint Scoring index method. Based
      on the evaluation, twenty bivoltine breeds comprising of ten oval breeds which scored lower values
      viz., APS5 (2.5764), APS7 (3.3050), APS19 (3.6508), APS11 (4.0610), APS9 (4.1034), APS31 (4.2272),
      APS27 (4.2939), APS45 (4.2956), APS39 (4.5588) and APS17 (4.7332) (oval) and ten peanut breeds for
      APS4 (3.1863), APS8 (3.2886), APS32 (3.4138), APS24 (3.5794), APS12 (3.8078), APS16 (3.9715)
      APS18 (4.1263), APS62 (4.2164), APS6 (4.2656) and APS10 (4.3777) were adjudicated as potential
      breeding resource material for initiation of breeding programme for the development of bivoltine
      silkworm hybrids suitable for tropical conditions.

      KEYWORDS

        REFERENCES

        1. Arunachalam, V. and Bandyopadhyay, A. (1984). Indian J. Genet., 44:419-424.
        2. Chandrashekharaiah and Ramesh Babu, M. (2003). In: Concept papers. Mulberry silkworm Breeders Summit held at APSSRDI, Hindupur, 18-19th July, 03. p. 6-13.
        3. Datta, R. K. (1984). Sericologia. 24:393-415.
        4. Datta, R. K. et al. (2000). Sericologia. 40:151-167.
        5. Kalpana, G.V. (1992). Ph.D thesis. University of Mysore, Mysore.
        6. Kogure, M. (1993). J. Dept. Agric., 4:1-93.
        7. Krishna Rao, S. et al. (2003) In: Abstra., National Conference on Tropical Sericulture for Global Competitiveness,
        8. CSR&TI, Mysore, 5-7th November, p.19.
        9. Naseema Begum, A. et al. (2001). Int. J. Indust. Entomol., 2:111-117.
        10. Vol. 42, No. 4, 2007 243
        11. Nirmal Kumar, S. and Sreerama Reddy, G. (1998) Evaluation and Selection of Potential Parents for Silkworm Breeding. Oxford & IBH Publi. Co., Calcutta.
        12. Nirmal Kumar S. (1995) Ph.D Thesis. University of Mysore, Mysore.
        13. Ramesh Babu, M. et al. (2001). Bull. Indian Acad. Seric., 5:9-17.
        14. Ramesh Babu, M. et al. (2002). Int. J. Indust., Entomol., 5(1):37-43.
        15. Sengupta, K. et al. (1971). Indian J. Seric., 10:6-13.
        16. Subba Rao (1988). In: Proc. Int. Cong. Trop. Seric. Prac., Part-IV, pp 33-39.
        17. Sudhakara Rao, P. et al. (2001). Indian J. Indust. Entomol., 3:31-35.
        18. Sudhakara Rao, P. et al. (2002). Int. J. Indust. Entomol., 4:37-41.
        19. Thiagarajan, V. et al. (1993). Sericologia. 33:559-565.
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