biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 46:133-136, 2003 | DOI: 10.1023/A:1022360809008

Physiological Response of Paclobutrazol-Treated Triticale Plants to Water Stress

M. Berova1, Z. Zlatev1
1 Department of Plant Physiology and Biochemistry, Agricultural University, Plovdiv, Bulgaria

Gas exchange in paclobutrazol-treated triticale plants during water stress and rehydration was studied. Seed treatments with the retardant (1 and 25 mg dm-3) alleviate negative effect of PEG-induced water stress. Net photosynthetic rate, transpiration rate, stomatal conductance, relative water content, and leaf water potential were higher while peroxidase activity and free proline concentration were lower in the paclobutrazol-treated plants than in control plants. This confirmed our assumption that paclobutrazol possessed a protective effect against water stress.

Keywords: leaf gas exchange; free proline; Triticale hexaploide Lar.; water potential
Subjects: amino acids; gas exchange, paclobutrazol, water stress; paclobutrazol; polyethylene glycol; proline, paclobutrazol, water stress; Triticale hexaploide; triticale, gas exchange; water potential, paclobutrazol

Prepublished online: March 1, 2003; Published: July 1, 2003  Show citation

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Berova, M., & Zlatev, Z. (2003). Physiological Response of Paclobutrazol-Treated Triticale Plants to Water Stress. Biologia plantarum, 46(1), 133-136. doi: 10.1023/A:1022360809008
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