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Water and Osmotic Potentials of Ethephon-Treated Maize Genotypes Varying in Drought Resistance

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Biologia Plantarum

Abstract

Leaves of drought-resistant and drought-sensitive genotypes of maize (Zea mays L.) were sprayed with ethephon to determine its effect on water and osmotic potentials. With both sufficient and limited water supplies, ethephon decreased the water potential, but not the osmotic potential, of the drought-sensitive maize. It had no effect on the water and osmotic potentials of the drought-resistant maize under either water regime. The results showed that the response of a genotype of maize to ethephon depends upon its susceptibility to drought.

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Authors and Affiliations

  1. Evapotranspiration Laboratory, Kansas State University, Manhattan

    W. P. Lu

  2. Kansas 66506 and Department of Agronomy, Kansas State University, 66506, Kansas, Manhattan, U.S.A.

    M. B. Kirkham & C. E. Wassom

Authors
  1. W. P. Lu
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  2. M. B. Kirkham
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  3. C. E. Wassom
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Lu, W.P., Kirkham, M.B. & Wassom, C.E. Water and Osmotic Potentials of Ethephon-Treated Maize Genotypes Varying in Drought Resistance. Biol Plant 33, 354–357 (1991). https://doi.org/10.1007/BF02897686

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  • DOI: https://doi.org/10.1007/BF02897686

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