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Physiological and biochemical changes attenuate the effects of drought on the Cerrado species Vatairea macrocarpa (Benth.) Ducke. Repositório Alice
VIEIRA, E. A.; SILVA, M das G.; MORO, C. F.; LAURA, V. A..
Drought is considered the main abiotic stress because it influences the distribution of plant species and limits the productivity of ecosystems. The aim of this study was to evaluate the effects of drought on physiological and biochemical parameters during the initial development of Vatairea macrocarpa, a native cerrado species. Plants were subjected to daily watering (control); suppression of watering during 90 days with field capacity (fc) 50% and 25% and then followed by rewatering. Relative leaf water content (RWC), gas exchange, photosynthetic pigments content, carbohydrate and amino acids content, antioxidant activities and growth were recorded. The RWC decreased according to the soil water restriction, causing reduction in stomatal conductance and...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Vatairea macrocarpa; Cerrado; Water deficit plant; Photosynthesis; Sucrose; Amino acids; Stomatal resistance; Specific growth rate; Raffinose; Osmoregulation.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1079686
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