Results 21 to 30 of about 40,938 (176)

Crescimento inicial, níveis críticos de fósforo e frações fosfatadas em espécies florestais Initial growing, phosphorus critical levels and phosphate fractions in forest species

open access: yesPesquisa Agropecuária Brasileira, 2000
Foi conduzido um experimento em casa de vegetação, com o objetivo de avaliar o crescimento de plântulas, os níveis críticos de P e algumas frações fosfatadas, em três espécies florestais submetidas a quatro doses de P.
LUIZ ARNALDO FERNANDES   +3 more
doaj   +1 more source

Species functional traits affect regional and local dominance across western Amazonian forests

open access: yesJournal of Ecology, Volume 114, Issue 1, January 2026.
Dominant tree species in western Amazonian forests show distinct functional trait combinations linked to habitat type: conservative traits in stressful habitats and greater plant size in less stressful environments. Local dominants are defined by resource conservation strategies and widespread dominants are defined by resource acquisition strategies. A
Laura Matas‐Granados   +45 more
wiley   +1 more source

Disentangling seed availability and establishment filters at alpine treelines through a decade‐long field manipulation

open access: yesJournal of Ecology, Volume 113, Issue 12, Page 3830-3844, December 2025.
Treeline advance under warming occurs only when multiple filters align—adequate seed supply, favourable microclimatic windows, moderated herbivory and shrub effects that remain facilitative rather than competitive. Abstract Climate warming is expected to increase upslope shifts of alpine treelines globally.
Wentao Lin   +2 more
wiley   +1 more source

Impacto da remoção de plântulas sobre a estrutura da comunidade regenerante de Floresta Estacional Semidecidual Impact of seedling removal on regenerating community structure of a seasonal semideciduous forest

open access: yesActa Botânica Brasílica, 2008
O transplante de plântulas e indivíduos jovens de florestas naturais tem sido considerado como alternativa à produção de mudas de espécies nativas para a restauração florestal, sem que tenham sido realizados estudos sobre os possíveis impactos dessa ...
Ricardo Augusto Gorne Viani   +1 more
doaj   +1 more source

Habitat Conditions and Neighborhood Interactions Drive the Phylogenetic Structure of Seedling Assemblages in a Tropical Forest Mosaic

open access: yesBiotropica, Volume 57, Issue 6, November 2025.
In poor, well‐drained sandy soils, we observed the coexistence of more closely related species, suggesting that shared evolutionary history influences which seedlings survive under these restrictive conditions. Contrary to expectations, flooded areas harbored more distantly related species, likely because pathogens and other natural enemies limit the ...
Matheus Guthierris Bitencourt Rosa   +4 more
wiley   +1 more source

Substrate and seed sowing position on the production of Plukenetia volubilis L. seedlings

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental
Plukenetia volubilis is a species native to the Amazonia and has economic potential due to the high contents of polyunsaturated fatty acids and vitamins of the seeds; however, information about production of seedlings in nursery is scarce.
Tatiane S. Jeromini   +3 more
doaj   +1 more source

Aspectos biofísicos e bioquímicos no desenvolvimento de plântulas de cupuaçuzeiro sob diferentes condições de luz em sala de crescimento. [PDF]

open access: yes, 2018
bitstream/item/42520/1/Boletim-Pesquisa-31 ...
CARVALHO, C. J. R. de   +2 more
core  

How do drought and elevated temperatures influence CO2 fertilization effects on tree seedling performance? A global meta‐analysis

open access: yesJournal of Ecology, Volume 113, Issue 10, Page 2875-2888, October 2025.
These results suggest that the fertilization effect of CO2 at the seedling stage may be limited when additional environmental stressors, such as drought, are present. The combined effect of drought, temperature and CO2 mainly resulted in additive effects, where each stressor independently influences plant performance rather than interacting to amplify ...
María Natalia Umaña   +4 more
wiley   +1 more source

Estudos preliminares da influência do potencial energético de sementes de leguminosas, na produção de matéria seca das plântulas

open access: yesBoletim de Indústria Animal, 2014
Com o objetivo de comparar o tamanho e o peso médio de sementes, a quantidade média de energia potencial e a quantidade de matéria seca produzida às expensas dos cotilédones, instalou-se na Estação Experimental Central do instituto de Zootecnia, em Nova Odessa, o presente experimento, com cinco leguminosas forrageiras, a saber : Stizolobiam aterrimum ...
Paulo Bardauil Alcântara   +1 more
openaire   +8 more sources

Influência de diferentes substratos na emergência de plântulas de imbuzeiro. [PDF]

open access: yes, 2017
Dada à falta de informação sobre a percentagem de emergência e índice de velocidade de germinação de plântulas de imbu (Spondias tuberosa Arruda), um experimento foi conduzido no período de janeiro a dezembro de 2003 em uma área sob telado, com 50% de ...
CAVALCANTI, N. de B., RESENDE, G. M. de
core  

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