Observações sobre autocompatibilidade em pupunha (Bactris gasipaes H.B.K., Palmae)

Clement, Charles R.; Arkcoll, David B.

doi:10.1590/1809-43921984143342

Cited by 11 publications

(12 citation statements)

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“…(Henderson et al, 2000b;Moraes and Sarmiento, 1992). The protogyny in B. glaucescens reduces the pollen flow between flowers of the same inflorescence, favoring cross-pollination, as reported for B. gasipaes Kunth (Clement and Arkoll, 1984;Ferreira, 2005;Henderson, 1988) and B. bidentula (Moraes and Sarmiento, 1992).…”

Section: Morphology and Biology Of The Inflorescence And Flowermentioning

confidence: 69%

Attalea phalerata and Bactris glaucescens (Arecaceae, Arecoideae): Phenology and pollination ecology in the Pantanal, Brazil

Fava

Covre

Sigrist

2011

Flora - Morphology, Distribution, Functional Ecology of Plants

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Section: Morphology and Biology Of The Inflorescence And Flowermentioning

confidence: 69%

Attalea phalerata and Bactris glaucescens (Arecaceae, Arecoideae): Phenology and pollination ecology in the Pantanal, Brazil

Fava

Covre

Sigrist

2011

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Peach palm is predominantly allogamous, having separate pistilate and staminate flowers and protogynous development. Self-fertilisation occurs, however, and there is considerable variation in self-fertility (Clement and Arkcoll 1984). Patterns of seed dispersal produced by wild animals have not been investigated, but the dispersal distance is thought to be limited.…”

Section: Introductionmentioning

confidence: 99%

Genetic differentiation and trade among populations of peach palm (Bactris gasipaes Kunth) in the Peruvian Amazon—implications for genetic resource management

et al. 2004

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Peach palm ( Bactris gasipaes Kunth) is cultivated for fruit and 'heart of palm', and is an important component of agroforestry systems in the Peruvian Amazon. In this study, AFLP was used to compare genetic diversity among domesticated populations along the Paranapura and Cuiparillo rivers, which are managed by indigenous and colonist farming communities, respectively. Gene diversity was 0.2629 for the populations in indigenous communities and 0.2534 in colonist communities. Genetic differentiation among populations ( G(st)) was 0.0377-0.0416 ( P<0.01) among populations along both rivers. There was no relation between genetic differentiation and the geographical location of populations along the rivers. Since natural seed dispersal by birds and rodents is thought to occur only across relatively short distances (100-200 m), it is likely that exchange of material by farmers and commercial traders is responsible for most of the 'long-distance' (over more than 20 km) gene flow among populations along the two rivers studied. This exchange of material may be important to counteract the effects of selection as well as genetic drift in small groups of trees in farmers' fields, much as in a metapopulation, and may account for the weak genetic differentiation between the two rivers ( G(st)=0.0249, P<0.01). A comparison with samples from other landraces in Peru and Brazil showed the existence of an isolation-by-distance structure up to 3,000 km, consistent with gene flow on a regional scale, likely mediated by trade in the Amazon Basin. Results are discussed with regard to practical implications for the management of genetic resources with farming communities.

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“…Clement et al (1987) verificaram uma correlação entre o rendimento do palmito e o diâmetro da planta. Villachica (1996) recomenda o corte do estipe com 8 cm a 12 cm de diâmetro, e MoraUrpi et al (1997) recomendam o corte acima de 9 cm, medidos de 30 a 40 cm acima do colo da planta.…”

Section: Introductionunclassified

Rendimento da pupunheira em função da densidade de plantio, diâmetro de corte e manejo dos perfilhos no Vale do São Francisco

2004

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RESUMOCom o objetivo de avaliar o rendimento de palmito de pupunheira irrigada em função da densidade de plantio, diâme-tro de corte do estipe e o manejo dos perfilhos, instalou-se um experimento na Estação Experimental de Bebedouro da Embrapa Semi-Árido, Petrolina, PE. O delineamento utilizado foi de blocos ao acaso em parcelas subdivididas, sendo as parcelas constituídas por dois espaçamentos (2,0 x 1,0 m -E1 e 2,0 x 2,0 m -E2) e as subparcelas em arranjo fatorial 2 x 2, compreendendo dois manejos de perfilhos e duas classes de diâmetros de corte. As colheitas foram feitas a partir de 16 meses até os 69 meses após o plantio e realizadas com intervalos consecutivos de mais ou menos três meses. Pelos resultados, evidenciaram-se efeitos significativos para espaçamento, manejo de perfilhos e classe de diâmetro de corte. Não foram constatadas interações entre os tratamentos. Houve efeito significativo de espaçamento sobre o rendimento, diâmetro de corte, comprimento e peso médio do palmito. O rendimento e o peso do palmito da pupunheira foram de 545 e 434 kg ha -1 ano -1 e 147 g e 180 g nos espaçamentos E1 e E2, respectivamente. O diâmetro de corte afetou a altura da planta e peso médio do palmito. O manejo de perfilho afetou o rendimento e o peso médio do palmito, com 532 e 446 kg ha -1 e 177 e 149 g de palmito, respectivamente, no manejo de quatro e todos os perfilhos por planta. Pelos resultados, infere-se, como orientação técnica para os produtores de áreas irrigadas do Submédio São Francisco, o cultivo da pupunha no espaçamento de 2 m x 1 m, o manejo de quatro perfilhos por planta e o corte da planta com diâmetro variando de 10 a 12 cm, a 30 cm do nível do solo. Termos para indexação:Bactris gasipaes Kunth, palmito, semi-árido, produção. ABSTRACTThe objective of this experiment was to evaluate the effect of planting density, cut-off diameter classes and shoot number on heart of palm production on irrigated peach palm. The experimental layout was a randomized split-plot design with a factorial arrangement in the split-plot with four replicates. The whole plots were plant spacing S¹ -2 x 1 m and S² -2 x 2 m and the subplots were 12 m² (with factorial arrangement of two diameters and two shoot number). The harvesting was done from 16 to 69 months after planting with three months interval. The cut-off diameter class affected significantly the production. The yields of heart of palm at diameter classes 10 cm and 12 cm were 494 and 484 kg ha -1 year -1 and, respectively. The average weight of heart of palm for the cut-off diameters 10 cm and 12 cm were 149 g and 178 g and yield of heart of palm were 545 and 434 kg ha -1 year -1 , respectively. Planting space affect all the parameters evaluated, except the average plant height. The results allow to point out, as information for the irrigated areas of the San Francisco Valley, the cultivation of peach palm spaced 2 x 1 m and cut-off diameter of de stem from 10 to 12 cm about 30 cm up the grownd. Index terms:Bactris gasipaes Kunth, heart-of-palm, semi-arid, yield. (IB...

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Observações sobre autocompatibilidade em pupunha (Bactris gasipaes H.B.K., Palmae)

Cited by 11 publications

References 0 publications

Attalea phalerata and Bactris glaucescens (Arecaceae, Arecoideae): Phenology and pollination ecology in the Pantanal, Brazil

Attalea phalerata and Bactris glaucescens (Arecaceae, Arecoideae): Phenology and pollination ecology in the Pantanal, Brazil

Genetic differentiation and trade among populations of peach palm (Bactris gasipaes Kunth) in the Peruvian Amazon—implications for genetic resource management

Rendimento da pupunheira em função da densidade de plantio, diâmetro de corte e manejo dos perfilhos no Vale do São Francisco

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