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O ensino dos insetos na perspectiva de docentes brasileiros e portugueses
Tmbó, Petronio; Meierrose, Carola; Cid, MaríliaCom o objetivo de determinar e comparar as perspectivas dos professores de biologia do Brasil e Portugal em relação a esta temática, realizou-se este estudo em duas fases. No Brasil, o estudo contou com a participa- ção de 17 professores que lecionavam no 2º . e 3º . anos, em 5 escolas da rede pública de ensino estadual do estado do Ceará. Em Portugal, contou com a participação de 37 professores que leciona...
Opportunity for hybridization between two oak species in mixed stands as monit...
Varela, Maria Carolina; Brás, Rita; Reforço Barros, Isabel; Oliveira, Paulo; Meierrose, CarolaThe opportunity of cross-pollination in mixed stands of two oak species (cork oak and holm oak) was studied by characterizing individual phenologies of flowering. In the spring of 1998 at one stand consisting of 64 marked trees, there was a period of 19 days when maximal pollen release in one species and stigma receptivity in the other occurred simultaneously, enabling interspecific gene flow in either directio...
Hybrids between cork oak and holm oak: Isoenzyme analysis
Oliveira, Paulo; Custódio, Ana Cristina; Branco, Cristina; Reforço, Isabel; Rodrigues, Fernanda; Varela, Maria Carolina; Meierrose, CarolaHybrids between cork oak and holm oak occur in a large range of overlap between these two species in Portugal, and the subsequent crosspollination involving the hybrids and cork oak has been postulated to result in some of the worst cork-producing trees in Portugal. A methodological framework was set for the routine large scale detection of hybrid genotypes using isoenzyme analysis. The effectiveness of isoenz...
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