Data/hora: 09/06/2024 22:40:19

Biblioteca(s): | Embrapa Acre.
Data corrente: | 09/02/2012
Data da última atualização: | 06/07/2021
Autoria: | KLIMAS, C. A.; KAINER, K. A.; WADT, L. H. de O.; STAUDHAMMER, C. L.; RIGAMONTE-AZEVEDO, V.; CORREIA, M. F.; LIMA, L. M. da S.
Afiliação: | CHRISTIE A. KLIMAS, UNIVERSITY OF FLÓRIDA; KAREN A. KAINER, UNIVERSITY OF FLÓRIDA; LUCIA HELENA DE OLIVEIRA WADT, CPAF-AC; CHRISTINA L. STAUDHAMMER, UNIVERSITY OF FLÓRIDA; VALÉRIA RIGAMONTE-AZEVEDO, UFAC; MANOEL FREIRE CORREIA, CPAF-AC; LÍLIAN MARIA DA SILVA LIMA, CNPq.
Título: | Control of Carapa guianensis phenology and seed production at multiple scales: a five-year study exploring the influences of tree attributes, habitat heterogeneity and climate cues.
Ano de publicação: | 2012
Fonte/Imprenta: | Journal of Tropical Ecology, United Kingdom, v. 28, n. 1, p. 105-118, Jan. 2012.
DOI: | 10.1017/S0266467411000630
Idioma: | Inglês
Conteúdo: | During 5 y, we monitored reproductive activity and seed production of Carapa guianensis in two forest types to test the hypothesis that seed production is influenced by multiple factors across scales (regional climatic cues, local habitat heterogeneity and individual tree attributes). Variability in seed production was moderate at the population (CVp =1.25) and individual level (xCVi =1.24). Amixed modelwith a Poisson regression revealed that seed production was explained by variables at all scales. Total seed production was significantly higher in occasionally inundated forests. Diameter at breast height, dbh2, crown cross-sectional area, liana load, density, dry-season rainfall and mean maximum temperature were also significant in explaining seed production variation. Seed production increased with dbh until 40?50 cm, then decreased. Liana load demonstrated a negative relationship with seed production, but only in terra firme forests. Climatic cues (rainfall and temperature parameters) were central to setting overall patterns in reproductive activity and seemed to best explain why years with high seed production were consistent across the two forest types (habitats) examined. Dry-season rainfall was positively correlated with seed production.
Palavras-Chave: | Análisis estadístico; Desarrollo estacional; Desempeño del crecimiento; Distribución de Poisson; Fitomejoramiento; Liana; Producción de plántulas; Regressão de Poison.
Thesagro: | Análise estatística; Andiroba; Carapa guianensis; Clima; Erva daninha; Fator de crescimento; Fenologia; Floresta; População de planta; Produção de sementes; Reprodução vegetal; Temperatura.
Thesaurus Nal: | Growth performance; Phenology; Plant breeding; Poisson distribution; Seasonal development; Seedling production; Statistical analysis.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/61442/1/24120.pdf
Registro original: | Embrapa Acre (CPAF-AC)

Exemplares:

CPAF-AC - (24120-1) - UPC - AP - PP - SP 380 -  - 2012.00177 - DES
CPAF-AC - (24120-2) - UPC - AP - DD -  -  -  - DIS