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- Title
Características fotossintéticas de genótipos de capim-elefante anão (Pennisetum purpureum Schum.), em estresse hídrico.
- Authors
do Carmo Araújo, Saulo Alberto; Vasquez, Hernan Maldonado; Campostrini, Eliemar; Netto, Alena Torres; Deminicis, Bruno Borges; da Silva Lima, Érico
- Abstract
Photosynthetic characteristics of dwarf elephant grass (Pennisetum purpureum Schum.) genotypes under different hydric conditions. 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.
- Subjects
CENCHRUS purpureus; GENETIC research; GAS exchange in plants; PHOTOSYNTHESIS; PLANT transpiration; ATMOSPHERIC water vapor; HUMIDITY; PHOTOBIOLOGY
- Publication
Acta Scientiarum: Animal Sciences, 2010, Vol 32, Issue 1, p1
- ISSN
1806-2636
- Publication type
Article
- DOI
10.4025/actascianimsci.v32i1.8961