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Campo DC | Valor | Idioma |
---|---|---|
dc.contributor.author | Ferreira, Marciel José | - |
dc.contributor.author | Gonçalves, José Francisco de Carvalho | - |
dc.contributor.author | Ferraz, João Baptista Silva | - |
dc.date.accessioned | 2020-06-15T21:54:17Z | - |
dc.date.available | 2020-06-15T21:54:17Z | - |
dc.date.issued | 2009 | - |
dc.identifier.uri | https://repositorio.inpa.gov.br/handle/1/18375 | - |
dc.description.abstract | In an experimental site for reforestation of degraded area, three-year-old plants of Bertholletia excelsa Humb. & Bonpl. were subjected to different fertilization treatments: T0 = unfertilized control, T1 = green fertilization (branches and leaves) and T2 = chemical fertilization. Higher net photosynthetic rates (PN) were observed in T1 [13.2±1.0 μmol(CO2) m-2 s-1] compared to T2 [8.0±1.8 μmol(CO2) m-2 s-1] and T0 [4.8±1.3 μmol(CO2) m-2 s-1]. Stomatal conductance (gs), transpiration rate (E) and water use efficiency (WUE) of individuals of T1 and T2 did not differ significantly, however, they were by 88, 55 and 63%, respectively, higher in T1 than in the control. The mean values of variable fluorescence (Fv), performance index (P.I.) and total chlorophyll [Chl (a+b)] were higher in T1. Our results indicate that green fertilization improves photosynthetic structure and function in plants of B. excelsa in young phase. © Springer Science+Business Media B.V. 2010. | en |
dc.language.iso | en | pt_BR |
dc.relation.ispartof | Volume 47, Número 4, Pags. 616-620 | pt_BR |
dc.rights | Restrito | * |
dc.subject | Bertholletia Excelsa | en |
dc.title | Photosynthetic parameters of young Brazil nut (Bertholletia excelsa H. B.) plants subjected to fertilization in a degraded area in Central Amazonia | en |
dc.type | Artigo | pt_BR |
dc.identifier.doi | 10.1007/s11099-009-0088-2 | - |
dc.publisher.journal | Photosynthetica | pt_BR |
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