<b>Photosynthetic characteristics of dwarf elephant grass (<em>Pennisetum purpureum</em> Schum.) genotypes under different hydric conditions</b> - DOI: 10.4025/actascianimsci.v32i1.8961

  • Saulo Alberto do Carmo Araújo UFVJM
  • Hernan Maldonado Vasquez UENF
  • Eliemar Campostrini UENF
  • Alena Torres Netto UENF
  • Bruno Borges Deminicis UENF
  • Érico da Silva Lima UENF
DOI: https://doi.org/10.4025/actascianimsci.v32i1.8961
Keywords: stomatal conductance, vapor pressure deficit, photoinhibition, photosynthesis, transpiration

Abstract

The experiment was carried out aiming to evaluate the gas exchange of dwarf elephant grass genotypes under different hydric conditions, in a randomized design with three replications. Genotypes of dwarf elephant grass (Mott, CNPGL 94-34-3 and CNPGL 92-198-7) were analyzed under two hydric conditions: irrigated (I) and non-irrigated (NI). Differences between treatments I and NI were observed for all genotypes for photosynthesis, stomatal conductance, transpiration and water vapor pressure deficit. Genotype CNPGL 94-34-3 presented highest tolerance to hydric stress, followed by Mott and CNPGL 92-198-7 genotypes. All genotypes presented high photosynthetic rate, under ideal conditions of soil humidity, thus characterizing the analyzed dwarf elephant grass genotypes as plants with high photosynthetic efficiency.

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Author Biography

Saulo Alberto do Carmo Araújo, UFVJM
Departamento de Zootecnia Forragicultura e Pastagem
Published
2010-03-22
How to Cite
Araújo, S. A. do C., Vasquez, H. M., Campostrini, E., Netto, A. T., Deminicis, B. B., & Lima, Érico da S. (2010). <b>Photosynthetic characteristics of dwarf elephant grass (<em>Pennisetum purpureum</em> Schum.) genotypes under different hydric conditions</b&gt; - DOI: 10.4025/actascianimsci.v32i1.8961. Acta Scientiarum. Animal Sciences, 32(1), 1-7. https://doi.org/10.4025/actascianimsci.v32i1.8961
Issue
Vol 32 No 1 (2010)
Section
Pasture and forage utilization

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