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| Lenza,Eddie; Ferreira,Joice Nunes; Consolaro,Hélder; Aquino,Fabiana de Gois. |
| A heterostilia é um polimorfismo floral geralmente associado a sistemas genéticos de intramorfo incompatibilidade. Nós avaliamos aspectos reprodutivos da heterostilia de uma população de Rourea induta Planch. em uma área de cerrado de Brasília, DF. Foram conduzidos estudos sobre sua biologia floral, sistema reprodutivo, produção e maturação de frutos, germinação de sementes, fenologia reprodutiva e visitantes florais. As flores são pequenas (11 mm de diâmetro), com morfologia simples e possuem dois grupos de cinco estames de comprimentos diferentes e cinco pistilos. O comprimento médio de estames e pistilos diferiu significativamente entre o morfo brevistilo e o longistilo. No entanto, não houve hercogamia recíproca completa entre os dois morfos florais.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distilia; Melitofilia; Savana; Sistemas reprodutivos; Sucesso reprodutivo. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300003 |
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| Fonseca,Carlos Eduardo Lazarini da; Morais,Fernanda Monteiro de; Gonçalves,Helenice Moura; Aquino,Fabiana de Gois; Rocha,Fernando Souza. |
| Abstract: The objective of this work was to estimate the repeatability coefficients of mangaba (Hancornia speciosa) fruit traits, in order to define the number of fruit needed for an accurate selection of superior genotypes, as well as to conjecture about the nature of the phenotypic variation of these traits. Evaluations were performed for 160 fruit of 16 genotypes from two native H. speciosa populations of Goiás Velho and Padre Bernardo, in the state of Goiás, Brazil. Repeatability was estimated by the analysis of variance, principal component analyses based on covariance and on the correlation matrix, and structural analysis based on the correlation matrix. Repeatability estimates for fruit weight, diameter, and length, as well as seed number and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coefficient of determination; Mangaba; Repeated measures; Savannah; Selection efficiency. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000600710 |
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| Aquino,Fabiana de Gois; Walter,Bruno Machado Teles; Ribeiro,José Felipe. |
| This study was conducted in two fragments of "cerrado" stricto sensu in the Gerais de Balsas Colonization Project, located in southern Maranhão, Brazil. The objective was to evaluate the dynamics of the woody plant community, over seven years (1995-2002). Four transects of 160 × 20 m were monitored. All woody plants with a stem diameter > 3 cm, at 0.30 m above ground level, were recorded. In 1995, 983 and 1,177 stems were sampled in fragments 1 and 2, respectively; in 2002, 1057 and 1406 stems were sampled in the same fragments. In 1995, the Shannon diversity indices (H') were 3.07 and 3.33, in fragments 1 and 2, respectively, reaching their maximum value in 2002 of 3.11 and 3.35. The community of fragment 1 showed an increase of 7.5% in density and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragmentation; Permanent plots; Plant mortality; Recruitment; Savanna. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000100011 |
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