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| DA MATTA,FÁBIO M.; LOOS,RODOLFO A.; RODRIGUES,RODRIGO; BARROS,RAIMUNDO S.. |
| The actual (A) and potential (Apot) photosynthetic rates of C3 and C4 tropical crop species grown under greenhouse conditions was compared. The following species were investigated: Oryza sativa, Phaseolus vulgaris, Glycine max, Helianthus annuus, Gossypium hirsutum, Manihot esculenta, Theobroma cacao, Coffea arabica, Hevea brasiliensis, and Eucalyptus urophylla × E. grandis, all from the C3 group, and Amaranthus sp., Panicum maximum, Pennisetum purpureum, Zea mays and Saccharum officinarum, from the C4 group. A, determined under non-limiting light at ambient temperature and CO2, was measured with an infrared gas analyser, whilst Apot, determined under saturating light and CO2 at an optimal temperature (35 ºC for all species), was gauged with a gas-phase... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carbon assimilation rate; Photosynthetic oxygen evolution; Specific leaf area. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-31312001000100003 |
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| CASTRO-ARÉVALO,MAURICIO; REYES-DÍAZ,MARJORIE; ALBERDI,MIREN; JARA-RODRÍGUEZ,VALERIA; SANHUEZA,CAROLINA; CORCUERA,LUIS J; BRAVO,LEÓN A. |
| Embothrium coccineum, Gevuina avellana, and Lomaría ferruginea grow in habitats contrasting in temperature and light intensity. Embothrium coccineum is a pioneer species that establishes itself in open sites completely exposed to variable sunlight and temperature. Gevuina avellana is usually found in more protected sites. Lomaría ferruginea regenerates under the canopy in sites with low thermal oscillations and high humidity. In order to establish an association of their habitats with functional attributes of each species, we studied their photosynthetic responses to temperature and light intensity. We expected that E. coccineum, which grows at full sun, is able to acclimate much better its photosynthetic apparatus to different temperatures than the shade... |
| Tipo: Journal article |
Palavras-chave: Proteaceae; Cold acclimation; Photosynthetic oxygen evolution; Photochemical efficiency of PSII. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2008000300002 |
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