Results 81 to 90 of about 1,183 (182)

Fecundidade, dispersão e predação de sementes de Archontophoenix cunninghamiana H. Wendl. & Drude, uma palmeira invasora da Mata Atlântica [PDF]

open access: yesRevista Brasileira de Botânica, 2006
Understanding the basic biology of invasive species can help us to choose the best management strategies to deal with the invasion. I report the phenology, seed production and dispersal of Archontophoenix cunninghamiana, an Australian palm that is invading Atlantic forest fragments. Field work was done in a 10 ha forest fragment (Mata da Cuaso 23o34' S,
openaire   +3 more sources

The effects of an exotic palm on a native palm during the first demographic stages: contributions to ecological management

open access: yesActa Botânica Brasílica, 2014
Biological invasions have negative impacts on native biota and consequently on biodiversity. In patches of Atlantic Forest in Brazil, the Australian palm tree Archontophoenix cunninghamiana has become invasive, whereas the endemic palm Euterpe edulis is ...
Ana Luisa T. Mengardo, Vânia R. Pivello
doaj   +1 more source

Sensitivity of seed to desiccation in cupuassu (Theobroma grandiflorum (Willd. ex Spreng.) K. Schum. - Sterculiaceae. [PDF]

open access: yes, 2015
A resposta das sementes à redução do grau de umidade determinará se as mesmas poderão ser armazenadas pelos métodos convencionais. Verificou-se o efeito do dessecamento na germinação e no vigor de sementes de cupuaçu (Theobroma grandiflorum (Willd.
CICERO, S. M., CRUZ, E. D.
core  

Herbicide selectivity in the early development of Alexander palm and peach palm

open access: yesSemina: Ciências Agrárias, 2016
Herbicides are an efficient weed-control method, and herbicide selectivity with regard to palm species is an important subject of agricultural research.
Juliana Roberta Gobi Queiroz   +3 more
doaj   +1 more source

Seed mass of Tecoma stans L. Juss. ex Kunth (Bignoniaceae): effects on emergence and seedling development under full sun and shade [PDF]

open access: yes, 2011
The aim of this study was to evaluate the effect of Tecoma stans L. Juss. ex Kunth seeds mass on initial emergence, growth and, seedling development under different light conditions.
SOCOLOWSKI, Fábio   +2 more
core   +2 more sources

Avaliação genética de progênies de polinização aberta de açai (Euterpe oleracea) e estimativas de parâmetros genéticos. [PDF]

open access: yes, 2018
Relata-se no presente trabalho a avaliação genotípica de progênies e indivíduos de açaí no estado do Pará para os caracteres altura (ALT), diâmetro (DIAM), número de folhas vivas (NFV), altura do primeiro cacho (AC), número de perfilhos (NP), presença de
CANUTO, E. L.   +6 more
core  

Estimativas de parâmetros genéticos e ganhos de seleção em progênies de polinização aberta de açaizeiro. [PDF]

open access: yes, 2015
O presente trabalho teve como objetivos estudar a variabilidade genética, estimar parâmetros genéticos e fenotípicos, e realizar a predição de valores genéticos dos indivíduos de açaizeiro irrigado no Estado do Pará, utilizando a metodologia BLUP/REML a ...
FALCÃO, P. N. B.   +5 more
core  

Germination and emergence of four rattan Calamus species of Western ghats in response to different pre-sowing seed treatments [PDF]

open access: yes, 2016
The present investigation was carried out to study the effect of ten pre-sowing treatments on germination parameter of the four Calamus species in the nursery of College of Forestry, Vellanikkara. Most of the pre-sowing treatments of Calamus spp.
Jisha, E. D.   +2 more
core   +2 more sources

X-ray test for the evaluation of the internal morphology of the seeds of seafortia palm trees
Teste de raios X para avaliação da morfologia interna de sementes da palmeira seafórtia

open access: yesSemina: Ciências Agrárias, 2012
The seafortia palm tree (Archontophoenix cunninghamii) is originally from Australia and is widely used in ornamental gardens in Brazil. Due to the lack of information on the process of obtaining quality seedlings and the market demand for ornamental ...
Walas Permanhane Sturião   +2 more
doaj  

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