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Títol: Daily variation of transpiration rate and stomatal resistance of Capsicum annuum in four substrates
Autor: Martínez Farré, Francesc Xavier
Tapia, Luis
Cañameras Riba, Núria
Altres autors/autores: Universitat Politècnica de Catalunya. Escola Superior d'Agricultura de Barcelona; Universitat Politècnica de Catalunya. GREA - Grup de Recerca d'Enginyeria Agroambiental
Matèries: Àrees temàtiques de la UPC::Enginyeria agroalimentària::Agricultura::Horticultura
Capsicum annuum
Pebrots
Tipus de document: Article
Descripció: e a psi c u m a n n u u m plants under summer field conditions were grown in 17 cm plastic pots with different substrates: (1) Peat-Polystyrene (1:1) (v/v), (2) Composted Pine Bark, (3) Composted Grape Refuse-Olot s Volcanic Ashes (1:1) (v/v), and (4) Peat-Composted Pine Bark-Perlite (1:1:1) (v/v/v). Transpiration rate and stomatal resistance daily variation depended on irradiance and on substrate water contento Plants with one morning irrigation, 2 l/pot, showed stomatic symptoms of water deficit during the morning, in substrate (3), and in the afternoon in the other media. E.A. \rJ. % vol: (1) 22.7; (2) 21.8; (3) 8.0; and (4) 19.1 • Two more irrigations, 1 l/pot each, overcame restrictions of gaseous exchange in substrate (3), increasing ~anspiration rates and decreasing stomatal resistance substantially. Furthermore in _all substrates this three irrigation treatment extended, at least for one hour in the afternoon, the potential gaseous exchange in relation to irradiance assuming photosynthesis and stomatal resistance dependence of photon fluence rateo
Postprint (published version)
Altres identificadors i accés: Martinez, F.; Tapia, L.; Cañameras, N. Daily variation of transpiration rate and stomatal resistance of Capsicum annuum in four substrates. "Acta horticulturae", 1984, vol. 1, núm. 150, p. 357-370.
0567-7572
http://hdl.handle.net/2117/6290
Disponible al dipòsit:E-prints UPC
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