Effect of Indole Acetic Acid and α-Naphthalene Acetic Acid on the Growth, Flowering and Fruit Set in Sweet Potato

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Abstract

SWEET POTATO (Impomoea batatas (L.) Lam.) is cultivated for its tuber and its foliage, which is used as cattle food. It is usually propagated either by the tuber slips or stem cuttings ; in India the latter method is usually followed. Hernandez et al.1 reported that the tubers when dipped momentarily in 2,4-D at 10 p.p.m. produced a significantly larger number of plants than the control, but they did not study the effect of the chemical on stem cuttings or on tuber yield. Howell and Wittwer2,3 observed that 2,4-D sprays induced better flowering in sweet potato. Mikell4 found that 2,3,5-triiodobenzoic acid, 2,4-D and α-naphthalene acetic acid failed to induce any flowering when the plants were treated either by the wick method, foliage spray or soil application.

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References

  1. 1

    Hernandez, T. P., Miller, J. C., and Fountenot, J. F., Proc. Amer. Soc. Hort. Sci., 55, 423 (1950).

  2. 2

    Howell, M. J., and Wittwer, S. H., Science, 120, 717 (1954).

  3. 3

    Howell, M. J., and Wittwer, S. H., Proc. Amer. Soc. Hort. Sci., 66, 279 (1955).

  4. 4

    Mikell, J. J., Proc. Amer. Soc. Hort. Sci., 60, 295 (1952).

  5. 5

    Montelaro, J., and Miller, J. C., Proc. Amer. Soc. Hort. Sci., 57, 329 (1951).

  6. 6

    Richharia, R. H., and Ghosh, A. N., Ind. J. Hort., 6, 33 (1954).

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SATYANARAYANA, G., RANGASWAMI, G. Effect of Indole Acetic Acid and α-Naphthalene Acetic Acid on the Growth, Flowering and Fruit Set in Sweet Potato. Nature 184, BA73–BA74 (1959) doi:10.1038/184073a0b

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