Letter | Published:

Use of Defoliants for drying Buckwheat in the Field, and a New Method for the Chemical Determination of Rutin

Abstract

DEFOLIANTS are commonly used to facilitate the harvesting of cotton1, beans, clover2 and birdsfoot trefoil3 for seeds, or for destroying the haulms of potatoes4 to inhibit the spread of virus from infected leaves into the tubers. We thought it worth while to examine whether defoliants could be used for drying buckwheat (Fagopyrum sagittatum Gilib.), cultivated as medicinal plants, directly in the field, so as to avoid the tedious operations in connexion with artificial drying of the harvested material. As we expected that the rutin content might be influenced by defoliants, we have determined the rutin content of treated plants as compared with the control plants, cut and afterwards dried.

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References

  1. 1

    Brown, L. E., Agron. J., 48, 339 (1956).

  2. 2

    Evans, S. A., Agric. (Lond.), 63, 280 (1956).

  3. 3

    Wiggans, S. C., et al., Argon. J., 48, 281 (1956).

  4. 4

    Höhener, H., Schw. landw. Monatshefte, 33, 276 (1955).

  5. 5

    cf. Ahlgrimm, E. D., Planta, 47, 225 (1956).

  6. 6

    Mahal, J., and Venkatamaran, K., J. Ind. Chem. Soc., 15, 65 (1938).

  7. 7

    Gage, T. B., Douglas, C., and Wender, S. H., Anal. Chem., 23, 1582 (1951).

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