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Science 14 June 1963:
Vol. 140. no. 3572, pp. 1212 - 1213
DOI: 10.1126/science.140.3572.1212
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Articles

Growth-Regulating Chemicals Persist in Plants: Qualitative Bioassay

T. J. Muzik 1 and J. W. Whitworth 1

1 Department of Agronomy, Agricultural Experiment Station, Washington State University, Pullman

Scions from untreated tomato plants were grafted on plants treated with 2,4-dichlorophenoxyacetic acid by dipping one leaf in a solution containing 1000 parts per million. Subsequent malformations of the scion shoot and leaves were used as criteria of the presence of this chemical. The chemical or a substance causing similar symptoms persisted in the plant in physiologically active amounts for approximately 60 days.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Strontium Isotopes in Deep-Sea Sediments.
E. J. Dasch, F. A. Hills, and K. K. Turekian (1966)
Science 153, 295-297
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Science. ISSN 0036-8075 (print), 1095-9203 (online)