Results 31 to 40 of about 39,033 (126)

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

Teste de vigor em progênies de cupuaçu (Theobroma grandiflorum Willd. ex Spreng.) K. Schum. [PDF]

open access: yes, 2012
Disponível também on ...
CRUZ, E. D., ROCHA, C. R. M. da
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

Escarificação química da semente para favorecer a emergência e o crescimento do porta-enxerto Trifoliata Seedcoat chemist scarification to optimize the emergency and growth of Trifoliata rootstock

open access: yesPesquisa Agropecuária Brasileira, 2006
O objetivo deste trabalho foi avaliar a emergência e o crescimento de plantas do porta-enxerto de citros Trifoliata [Poncirus trifoliata (L.) Raf.], provenientes de sementes escarificadas quimicamente.
Roberto Pedroso de Oliveira   +2 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  

Above‐ground competition by Nephrolepis brownii inhibits tree seedling recruitment in a tropical restoration experiment

open access: yesJournal of Applied Ecology, Volume 62, Issue 8, Page 1968-1979, August 2025.
As Nephrolepis brownii primarily interferes through above‐ground competition, management of above‐ground tissues may mitigate its impact. However, additional research on the efficacy of this management strategy and potential allelopathic traits is needed.
Luis C. Beltrán   +4 more
wiley   +1 more source

Pollination and quality of seeds and plantlets of Eugenia uniflora L.

open access: yesHoehnea, 2019
This work evaluated the effect of pollination on the quality of seeds and plantlets of Eugenia uniflora L., as well as on the regenerative capacity of the seeds. Twelve individuals were monitored for their phenology and their floral visitors.
Adriana de Oliveira Fidalgo   +3 more
doaj   +1 more source

The Rapid Recovery of a Caatinga Dry Forest is Mediated by Disturbance‐Adapted Species

open access: yesBiotropica, Volume 57, Issue 4, July 2025.
Overall, regenerating and old‐growth forest stands exhibited similar plant diversity across all ontogenetic stages, with a negligible role played by forest stand age, precipitation, and chronic human disturbance. Species exclusively recorded as adults or seeds were mostly dispersed by animals, indicating that several species fail in either dispersing ...
Alexandre S. de Paula   +6 more
wiley   +1 more source

Custo de produção de mudas clonais de Café Arábica produzidas por embriogênese somática [PDF]

open access: yes, 2014
A produção de mudas clonais de café pode ser feita de diferentes formas. Entretanto, a produção por embriogênese somática é a que tem despontado como a mais promissora.
BORATO, P. B.   +7 more
core  

Decadal survival of tropical pioneer seeds in the soil seed bank is accompanied by fungal infection and dormancy release

open access: yesFunctional Ecology, Volume 39, Issue 6, Page 1483-1494, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Pioneer trees require high‐light environments for successful seedling establishment. Consequently, seeds of these species often persist in the soil seed bank (SSB) for periods ranging from several weeks to decades.
Paul‐Camilo Zalamea   +7 more
wiley   +1 more source

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