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volume 27 issue 2 (june 2006) : 79 - 90

EXPLORATION, COLLECTION AND CHARACTERIZATION OF CITRUS GERMPLASM - A REVIEW

I
I.P. Singh
S
Shyam Singh
1National Research Centre for Citrus, Shankarnagar, Amravati Road, Nagpur (MS) - 440 010, India

  • Submitted|

  • First Online |

  • doi

Cite article:- Singh I.P., Singh Shyam (2025). EXPLORATION, COLLECTION AND CHARACTERIZATION OF CITRUS GERMPLASM - A REVIEW. Agricultural Reviews. 27(2): 79 - 90. doi: .

ABSTRACT

A large number of citrus species/progenitors of commercial citrus fruits are believed to have originated in India. Availability and wide gene pool in the form of genetic diversity is a prerequisite for crop improvement. Genetic diversity is the extent of genetic variability's among the individual in a single species and between the species. The diversity within a species needs to be preserved for improvement programme. Assessment of genetic vulnerability of any citrus species requires knowledge of the extent and distribution of genetic diversity. However, the number of citrus accessions worldwide are listed to be 6000 and in India 1495 inclusive of wild species, rootstock old cultivars, advanced cultivars, and breeding lines. In India collection and conservation of citrus species/types started long back. However, in mid of nineteen century it received major emphasis. In yesteryears, collection and conservation were primarily made for the quality fruits. While, the current research efforts are addressed to collection of gene pool with distinct desirable traits, which can be utilized for improvement of cultivars. Total 7 citrus species in India are reported as endangered citrus species. They needs special attention for future use.

KEYWORDS

    REFERENCES

    1. Awtar Singh et al. (2001). Indian J. Plant Genet. Resour., 14: 194-196.
    2. Azad, K.C. and Chauhan, K.C. (1989). In: Citriculture in North Western India (Gill, K.S. et al., eds.) PAU, Ludhiana, Punjab, pp. 97-108.
    3. Bhattacharya, S.C. and Dutta, S. (1951). Indian J. Gentic., 11: 57-62.
    4. Bhattacharya, S.C. and Dutta, S. (1956). Classification of citrus fruits of Assam. Government of India Press, Delhi, Sci. Monog. No. 20: 110.
    5. Borthakur, D.N. (1993). Indian J. Hill Farming, 6(1): 1-18.
    6. Chadha, K.L. (1995). In: Proc. of Expert Consultation on Tropical Fruit Specially Asia, 17-19 May, MARDI
    7. Serdang Kuala Lumpur, (Arora, R.K. and Rao, V. Ramanatha eds.) IPGRI office for South Asia, New Delhi, pp. 45-60.
    8. Dutta, S. (1958). Indian J. Hort., 15: 146-153.
    9. Ghosh, S.P. (1977). Punjab Hort. J., 1 and 2: 13-21.
    10. Hore, D.K. et al. (1997). Plant Genetic Resources News letter (IPGRI/FAO), 110: 57-59.
    11. Kaul, G.L. (1981). A Case Study of North Cachar District, NEC Secretariate, Shillong, Meghalaya.
    12. Pujari , C.V. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC,
    13. Nagpur, pp. 97-106.
    14. Sheo Govind and Singh, I.P. (2002). Indian J. Plant Genetic Resour., 15: 19-22.
    15. Sheo Govind and Yadav, D.S. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC,
    16. NRCC, Nagpur, pp. 38-46.
    17. Singh, B. (1981). Establishment of First Gene Sanctuary for Citrus in Garo hills. Concept Pub. Co. New Delhi, pp. 182.
    18. Singh, D. (1967). Indian J. Hort., 24: 84-86.
    19. Singh, D. and Singh, R. (1967). Proc. Int. Symp. Subtrop. Trop. Hort., 424-428.
    20. Singh, D. and Singh, R. (1968). Indian J. Agric. Sci., 38: 25-37.
    21. Singh, H.P. and Chadha, K.L. (1993). In: Advances in Horticulture Vol. 1- Fruit crops Part 1 (Chadha, K.L and Pareek, O.P. eds.) Malhotra Publishing House, New Delhi, pp. 95-121.
    22. Singh, I.P. (1999). In: Citriculture (Singh, Shyam ed.) NRCC, Nagpur (M.S.), pp. 37-53.
    23. Singh, I.P. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 47-53.
    24. Singh, I.P. and Sheo Govind (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 91-96.
    25. Singh, I.P. and Sheo Govind (2000). Prog. Hort., 32: 46-49.
    26. Singh, I.P. and Awtar Singh (2001). In: Citrus (Singh, Shyam and Naqvi, S.A.M.H. eds.) International Book Distributing Co. Lucknow, India, pp. 45-66.
    27. Singh, I.P. et al. (2001). Indian J. Plant Genet. Resour., 14(1): 70-73.
    28. Singh, I.P. and Sheo Govind (2002). Indian J. Citriculture, 1: 10-13.
    29. Singh, I.P. and Shyam Singh (2003). Technical Bulletin, No.7, NRCC, Nagpur, pp. 230.
    30. Singh, R. (1977). In: Fruit Breeding in India. (Nijjar, G.S. ed.). Oxford IBH Publ. Co., New Delhi, pp. 39-49.
    31. Swingle, W.T. (1946). Citrus Industry Vol. I, Chapter IV. Uni. Calif. Press, USA. Tanaka, T. (1937). J. Bot Soc.
    32. Tanaka, T. (1958). Indian J. Hort., 15: 101-115.
    33. Vavilov, N.I. (1950). Chron. Bot., pp. 13-54.
    34. Verma, S.K. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 54-620.
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      volume 27 issue 2 (june 2006) : 79 - 90

      EXPLORATION, COLLECTION AND CHARACTERIZATION OF CITRUS GERMPLASM - A REVIEW

      I
      I.P. Singh
      S
      Shyam Singh
      1National Research Centre for Citrus, Shankarnagar, Amravati Road, Nagpur (MS) - 440 010, India

      • Submitted|

      • First Online |

      • doi

      Cite article:- Singh I.P., Singh Shyam (2025). EXPLORATION, COLLECTION AND CHARACTERIZATION OF CITRUS GERMPLASM - A REVIEW. Agricultural Reviews. 27(2): 79 - 90. doi: .

      ABSTRACT

      A large number of citrus species/progenitors of commercial citrus fruits are believed to have originated in India. Availability and wide gene pool in the form of genetic diversity is a prerequisite for crop improvement. Genetic diversity is the extent of genetic variability's among the individual in a single species and between the species. The diversity within a species needs to be preserved for improvement programme. Assessment of genetic vulnerability of any citrus species requires knowledge of the extent and distribution of genetic diversity. However, the number of citrus accessions worldwide are listed to be 6000 and in India 1495 inclusive of wild species, rootstock old cultivars, advanced cultivars, and breeding lines. In India collection and conservation of citrus species/types started long back. However, in mid of nineteen century it received major emphasis. In yesteryears, collection and conservation were primarily made for the quality fruits. While, the current research efforts are addressed to collection of gene pool with distinct desirable traits, which can be utilized for improvement of cultivars. Total 7 citrus species in India are reported as endangered citrus species. They needs special attention for future use.

      KEYWORDS

        REFERENCES

        1. Awtar Singh et al. (2001). Indian J. Plant Genet. Resour., 14: 194-196.
        2. Azad, K.C. and Chauhan, K.C. (1989). In: Citriculture in North Western India (Gill, K.S. et al., eds.) PAU, Ludhiana, Punjab, pp. 97-108.
        3. Bhattacharya, S.C. and Dutta, S. (1951). Indian J. Gentic., 11: 57-62.
        4. Bhattacharya, S.C. and Dutta, S. (1956). Classification of citrus fruits of Assam. Government of India Press, Delhi, Sci. Monog. No. 20: 110.
        5. Borthakur, D.N. (1993). Indian J. Hill Farming, 6(1): 1-18.
        6. Chadha, K.L. (1995). In: Proc. of Expert Consultation on Tropical Fruit Specially Asia, 17-19 May, MARDI
        7. Serdang Kuala Lumpur, (Arora, R.K. and Rao, V. Ramanatha eds.) IPGRI office for South Asia, New Delhi, pp. 45-60.
        8. Dutta, S. (1958). Indian J. Hort., 15: 146-153.
        9. Ghosh, S.P. (1977). Punjab Hort. J., 1 and 2: 13-21.
        10. Hore, D.K. et al. (1997). Plant Genetic Resources News letter (IPGRI/FAO), 110: 57-59.
        11. Kaul, G.L. (1981). A Case Study of North Cachar District, NEC Secretariate, Shillong, Meghalaya.
        12. Pujari , C.V. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC,
        13. Nagpur, pp. 97-106.
        14. Sheo Govind and Singh, I.P. (2002). Indian J. Plant Genetic Resour., 15: 19-22.
        15. Sheo Govind and Yadav, D.S. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC,
        16. NRCC, Nagpur, pp. 38-46.
        17. Singh, B. (1981). Establishment of First Gene Sanctuary for Citrus in Garo hills. Concept Pub. Co. New Delhi, pp. 182.
        18. Singh, D. (1967). Indian J. Hort., 24: 84-86.
        19. Singh, D. and Singh, R. (1967). Proc. Int. Symp. Subtrop. Trop. Hort., 424-428.
        20. Singh, D. and Singh, R. (1968). Indian J. Agric. Sci., 38: 25-37.
        21. Singh, H.P. and Chadha, K.L. (1993). In: Advances in Horticulture Vol. 1- Fruit crops Part 1 (Chadha, K.L and Pareek, O.P. eds.) Malhotra Publishing House, New Delhi, pp. 95-121.
        22. Singh, I.P. (1999). In: Citriculture (Singh, Shyam ed.) NRCC, Nagpur (M.S.), pp. 37-53.
        23. Singh, I.P. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 47-53.
        24. Singh, I.P. and Sheo Govind (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 91-96.
        25. Singh, I.P. and Sheo Govind (2000). Prog. Hort., 32: 46-49.
        26. Singh, I.P. and Awtar Singh (2001). In: Citrus (Singh, Shyam and Naqvi, S.A.M.H. eds.) International Book Distributing Co. Lucknow, India, pp. 45-66.
        27. Singh, I.P. et al. (2001). Indian J. Plant Genet. Resour., 14(1): 70-73.
        28. Singh, I.P. and Sheo Govind (2002). Indian J. Citriculture, 1: 10-13.
        29. Singh, I.P. and Shyam Singh (2003). Technical Bulletin, No.7, NRCC, Nagpur, pp. 230.
        30. Singh, R. (1977). In: Fruit Breeding in India. (Nijjar, G.S. ed.). Oxford IBH Publ. Co., New Delhi, pp. 39-49.
        31. Swingle, W.T. (1946). Citrus Industry Vol. I, Chapter IV. Uni. Calif. Press, USA. Tanaka, T. (1937). J. Bot Soc.
        32. Tanaka, T. (1958). Indian J. Hort., 15: 101-115.
        33. Vavilov, N.I. (1950). Chron. Bot., pp. 13-54.
        34. Verma, S.K. et al. (1999). In: Hi-Tech Citrus Management (Singh, Shyam and Ghosh, S.P. eds.), ISC, NRCC, Nagpur, pp. 54-620.
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