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Current IssueEditorial BoardOnline First ArticlesArchive

volume 23 issue 3 (september 2003) : 191 - 194

EFFECT OFEXOGENOUS APPLICATION OFGROWTH REGULATORS ON FRUIT DROP, CRACKINGAND QUALITY OF LITCHI (UTCHI CHINENSISSONN,) CV. DEHRADUN

M
Munish Anand
P
P.S. Kahlon
B
B.V.C.
M
Mahajan*
1Department of Horticulture, Khalsa College,G.N.D. University. Amritsar - 143 OOl,lndia

  • Submitted|

  • First Online |

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Cite article:- Anand Munish, Kahlon P.S., B.V.C., Mahajan* (2025). EFFECT OFEXOGENOUS APPLICATION OFGROWTH REGULATORS ON FRUIT DROP, CRACKINGAND QUALITY OF LITCHI (UTCHI CHINENSISSONN,) CV. DEHRADUN. Agricultural Science Digest. 23(3): 191 - 194. doi: .

ABSTRACT

Dehradun litchi tends to suffer from massive fruit-let drop and cracking. Varying concentrations of NM (15, 30 ppm), 2, 4, 5-T (15, 30 ppm) and GA 3 (25, 50 ppm) were applied on Litchi panicles at different intervals in terms of two sprays (At fruit set + 2 weeks later), three sprays (At fruit set +2 weeks +4 weeks later), four sprays (At fruit set + 2 weeks + 4 weeks + 6 weeks later) in order to ascertain their effects against fruit drop, cracking and quality of litchi. It was noticed that intensity of fruit drop and cracking decreased with increase in number of sprays of all growth regulators. The best results were obtained with four sprays of NAA (15 or 30 ppm) application respectively and likewise fruit quality was also improved

KEYWORDS

    REFERENCES

    1. A.O.A.C. (1975). Official Methods of Analysis. Official Agric.Chem; 12th ed.(Washington, DC).
    2. Arleca, R.N. (1996):PJqnt Growth Substances;· Principles and Application,. Chapman and Hall, New York.
    3. Bayley,S.T. and Satterfield, G. (1957). Ann. Bot., 21:633-644.
    4. Bonner, J. etal.(19q3).PhysiolPlant, 6: 51'l-522. .' '" .
    5. Cleland, RE. (l980).PI. Growth Substances'. Academic Press~ Inc. New York.
    6. Galan-Sanco, V. and tvtenini, U.G. (1989). Lithci Cultivation. FAO, Plant Produdion and ProteCtion, Paper 83, Rome.
    7. Hansen, P. (1969). Phy,sioJ. Pl,20: 382-391.
    8. Khan, I. etal. (1980).Et~. }fort., 29: 61-69.
    9. Krideman, p.E. (1968). Aast. J. BiOI. Sci, 21: 569c572.
    10. Krishnamoorlhy, HN. (1981). Plant Growth Substances Including Applications in Agriculture. Tat? McGraw Hill
    11. Publishing Co. Ltd., New Delhi, 3-87.
    12. Kumar, P. and Kumar, G. (1994). IndianJ. Hort., 51: 71-76.
    13. Luckwill, L.C. (1953). J. Hod. Sci., 28: 14-24.
    14. MenzaI, C.M. (1984). ScieniiaHort.,22: 335-345,
    15. Sharma, S.B.et al. (1986).J. Hort. Sci., 61: 533-534.
    16. Singh, I.P.et al. (1986). HarylwaJ. Hor!. Sci., 15:29-32.
    17. Singh, O.P. and Phogat, KP.S. (1984). PunjabHor!. J.,24: 83-88.
    18. Taiz, L. (1984). Ann. Rev. Plant Physiol. , 35: 585-657. .'
    19. TindaU, HD. (1994).. Hort. RevieWs, 16: 143-196.
    20. Weaver, R.J. (1972). Pl~t growth substances in agriculture. University of California Press, Devis. U.S.A.
    21. Wright, S.T.c. (1956). J. Hod. ScL, 31:196"211.
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      volume 23 issue 3 (september 2003) : 191 - 194

      EFFECT OFEXOGENOUS APPLICATION OFGROWTH REGULATORS ON FRUIT DROP, CRACKINGAND QUALITY OF LITCHI (UTCHI CHINENSISSONN,) CV. DEHRADUN

      M
      Munish Anand
      P
      P.S. Kahlon
      B
      B.V.C.
      M
      Mahajan*
      1Department of Horticulture, Khalsa College,G.N.D. University. Amritsar - 143 OOl,lndia

      • Submitted|

      • First Online |

      • doi

      Cite article:- Anand Munish, Kahlon P.S., B.V.C., Mahajan* (2025). EFFECT OFEXOGENOUS APPLICATION OFGROWTH REGULATORS ON FRUIT DROP, CRACKINGAND QUALITY OF LITCHI (UTCHI CHINENSISSONN,) CV. DEHRADUN. Agricultural Science Digest. 23(3): 191 - 194. doi: .

      ABSTRACT

      Dehradun litchi tends to suffer from massive fruit-let drop and cracking. Varying concentrations of NM (15, 30 ppm), 2, 4, 5-T (15, 30 ppm) and GA 3 (25, 50 ppm) were applied on Litchi panicles at different intervals in terms of two sprays (At fruit set + 2 weeks later), three sprays (At fruit set +2 weeks +4 weeks later), four sprays (At fruit set + 2 weeks + 4 weeks + 6 weeks later) in order to ascertain their effects against fruit drop, cracking and quality of litchi. It was noticed that intensity of fruit drop and cracking decreased with increase in number of sprays of all growth regulators. The best results were obtained with four sprays of NAA (15 or 30 ppm) application respectively and likewise fruit quality was also improved

      KEYWORDS

        REFERENCES

        1. A.O.A.C. (1975). Official Methods of Analysis. Official Agric.Chem; 12th ed.(Washington, DC).
        2. Arleca, R.N. (1996):PJqnt Growth Substances;· Principles and Application,. Chapman and Hall, New York.
        3. Bayley,S.T. and Satterfield, G. (1957). Ann. Bot., 21:633-644.
        4. Bonner, J. etal.(19q3).PhysiolPlant, 6: 51'l-522. .' '" .
        5. Cleland, RE. (l980).PI. Growth Substances'. Academic Press~ Inc. New York.
        6. Galan-Sanco, V. and tvtenini, U.G. (1989). Lithci Cultivation. FAO, Plant Produdion and ProteCtion, Paper 83, Rome.
        7. Hansen, P. (1969). Phy,sioJ. Pl,20: 382-391.
        8. Khan, I. etal. (1980).Et~. }fort., 29: 61-69.
        9. Krideman, p.E. (1968). Aast. J. BiOI. Sci, 21: 569c572.
        10. Krishnamoorlhy, HN. (1981). Plant Growth Substances Including Applications in Agriculture. Tat? McGraw Hill
        11. Publishing Co. Ltd., New Delhi, 3-87.
        12. Kumar, P. and Kumar, G. (1994). IndianJ. Hort., 51: 71-76.
        13. Luckwill, L.C. (1953). J. Hod. Sci., 28: 14-24.
        14. MenzaI, C.M. (1984). ScieniiaHort.,22: 335-345,
        15. Sharma, S.B.et al. (1986).J. Hort. Sci., 61: 533-534.
        16. Singh, I.P.et al. (1986). HarylwaJ. Hor!. Sci., 15:29-32.
        17. Singh, O.P. and Phogat, KP.S. (1984). PunjabHor!. J.,24: 83-88.
        18. Taiz, L. (1984). Ann. Rev. Plant Physiol. , 35: 585-657. .'
        19. TindaU, HD. (1994).. Hort. RevieWs, 16: 143-196.
        20. Weaver, R.J. (1972). Pl~t growth substances in agriculture. University of California Press, Devis. U.S.A.
        21. Wright, S.T.c. (1956). J. Hod. ScL, 31:196"211.
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