Abstract
Triacontanol, a 30-carbon primary alcohol, applied in nutrient culture solutions to rice (Oryza sativa L.) seedlings at 2.3×10-8 M (10 μg/l), caused an increase in dry weight and leaf area of the whole plants. The response could be observed as early as 3 h of treatment. It was observed at relatively high and low light intensities as well as in the dark where control plants lost but triacontanol-treated plants gained in dry weight. The dry weight gain in the dark was, however, eliminated by removing CO2 from the atmosphere. Triacontanol-treated plants also increased their content of Kjeldahl-N and contained 30% more total N per plant than controls after 6 h in the dark.
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Chibnall, A.C., Williams, E.F., Latner, A.L., Piper, S.H.: The isolation of n-triacontanol from lucerne wax. Biochem. J. 27, 1885–1888 (1933)
Evans, B.C.: The quantitative analysis of plant growth. Berkeley, Los Angeles: Univ. of California Press 1972
Ferrari, A.: Nitrogen determined by a continuous digestion and analysis system. Ann. N.Y. Acad. Sci. 87, 792–800 (1960)
Kolattukudy, P.E., Walton, T.J.: The biochemistry of plant cuticular lipids. Prog. Chem. 13, 121–175 (1972)
Ries, S.K., Bittenbender, H., Hangarter, R., Kolker, L., Morris, G., Wert, V.: Improved growth and yield of crops from organic supplements. In: Energy and Agriculture, in press, W. Lokeretz, ed. New York: Acad. Press 1976
Ries, S.K., Wert, V., Sweeley, C.C., Leavitt, R.A.: Triacontanol: A new naturally occurring plant growth regulator. Science 195, 1339–1341 (1977)
Snedecor, C.W.: Statistical Methods. Ames: Iowa State College Press 1946
Tulloch, A.P., Hoffman, L.L.: Epicuticular waxes of Secale cereale and Triticale hexaploide leaves. Phytochem. 13, 2535–2540 (1974)
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Ries, S.K., Wert, V. Growth responses of rice seedlings to triacontanol in light and dark. Planta 135, 77–82 (1977). https://doi.org/10.1007/BF00387979
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DOI: https://doi.org/10.1007/BF00387979