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Dambros, Cristian de Sales
Silva, José Wilson Pereira da
Gkoumpili, Chrysoula
Análise faunística e flutuação populacional de moscas-das-frutas (Diptera: Tephritidae) em cultivos de aceroleira, mangueira e goiabeira em três propriedades no município de Brasil Novo, Pará
(Instituto Nacional de Pesquisas da Amazônia - INPA, 2019)
Souza, Alexandra Soares de
;
Teles, Beatriz Ronchi
;
Silva, José Wilson Pereira da
Fruit flies are phytophagous insects that stand out in fruit growing due to impacts on fruits, mainly by the larvae that consume the pulp. The survey of the diversity of these tephritids is still scarce in the country, especially in the Amazon region, so the objective of this work was to survey the biodiversity of fruit flies in the municipality of Brasil Novo, Pará. For studies of faunistic analysis and fluctuation population, tephritid samples were collected weekly with the aid of 18 McPhail traps. In the traps 5,849 individuals were obtained, with 12 species identified of Anastrepha nine morphotypes. In the fruit samples, 7,650 tephritid pupae were obtained, A. obliqua in guava fruits (2.07%), hose (90.26%) and acerola (7.66%) and A. striata on fruits of guava (98.8%) and acerola (1.19%). The following species of parasitoids associated were found in hose and acerola fruits associated with A. obliqua: Aganaspis pelleranoi, Doryctobracon areolatus, Odontosema albinerve, Opius bellus and Utetes anastrephae, and the species associated with A. Striata in guava fruits were A. pelleranoi, D. areolatus, O. albinerve, O.bellus, U. anastrephae and Pachycrepoideus vindemia.
Assimilação de carbono, eficiência no uso da água, condutâncias estomática e do mesofilo, transporte de elétrons em árvores de dossel de Dinizia excelsa Ducke (Fabaceae, Mimosoideae)
(Instituto Nacional de Pesquisas da Amazônia - INPA, 2011)
Bento, Marcos
;
Mendoza, Ricardo Antonio Marenco
This work aimed to evaluate leaf chamber leakage and to determine leaf gas exchange at two positions (upper and lower branches) within the canopy of six angelim trees, Dinizia excelsa. Data collection was carried out at Distrito Agropecuário da Suframa (ZF-3) during the second semester of 2010, in adult, emergent trees (diameter at breast height, DAP > 1m). The electron transport rate and carboxylation velocity of Rubisco were 81.6 to 107.8 µmol m-2 s-1 and 31.8 to 38.2 µmol m-2 s-1, respectively. Regarding photosynthetic parameters, leaves in upper and lower branches were statistically similar, what suggests light homogeneity within Dinizia excelsa‟s canopy. Maximum carboxylation velocity of Rubisco (at ambient ) and maximum electron transport rate (at high ) were the most important limitations to photosynthesis in both environments. There was a close correlation between Amax and gs and gm, what indicates that stomatal and mesophyll resistance influence photosynthesis. Leaf characteristics in upper and lower branches were largely similar, only diverging in leaf thickness and chlorophyll relative value (SPAD values measured in the field). Other leaf traits, like maximum quantum photochemical efficiency (Fv/Fm), specific leaf area (SLA) and absolute chlorophyll content were statistically identical. Although leaf chamber leakage was not significant, it should be recommended to take into consideration eventual gas leaking during photosynthetic measurements.[CO2]