Morphological and physiological responses of Cedrela Fissilis Vellozo (Meliaceae) seedlings to light

Santos, Débora Leonardo dos; Rakocevic, Miroslava; Takaki, Massanori; Ribaski, J.

doi:10.1590/s1516-89132006000100020

Cited by 16 publications

(13 citation statements)

References 33 publications

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“…Regeneration of lightdemanding tree species such as Bastardiopsis densiflora, Cedrela fissilis, Cordia trichotoma, Patagonula americana, and Parapiptadenia rigida were neither boosted by bamboo and liana cutting in gaps despite large increments in solar radiation and nutrients availability. Some of these lightdemanding species, which may regenerate in gaps (López et al, 1987;Duz et al, 2004;dos Santos et al, 2006), constitute the group most affected by bamboos, explaining partially the low richness of pioneer trees reported for the Atlantic Forest in southeastern Brazil (Tabarelli and Mantovani, 1999), and also in the present study for the semideciduous Atlantic Forest in Argentina.…”

Section: Tree Regenerationsupporting

confidence: 52%

Tree regeneration and microclimate in a liana and bamboo-dominated semideciduous Atlantic Forest

Campanello

Gatti

Ares

et al. 2007

Forest Ecology and Management

127

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Section: Tree Regenerationsupporting

confidence: 52%

Tree regeneration and microclimate in a liana and bamboo-dominated semideciduous Atlantic Forest

Campanello

Gatti

Ares

et al. 2007

Forest Ecology and Management

127

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“…* e ** significativos a 5% e 1% de probabilidade, respectivamente, pelo teste F. O maior crescimento em altura das plantas com redução no nível de luminosidade foi observado em outras espécies florestais sob sombreamento, como Amburana cearensis, Tabebuia avellanedae, Erythrina speciosa (ENGEL e POGGIANI, 1990), Bombacopsis glabra (SCALON et al, 2003), Croton urucurana (ALVARENGA et al, 2003), Maclura tinctoria e Senna macranthera (ALMEIDA et al, 2005). Todavia, isso não ocorreu em Hymenaea courbaril e Acacia mangium (ALMEIDA et al, 2005) e Cedrela fissilis (SANTOS et al, 2006), quando comparado com plantas mantidas a pleno sol.…”

Section: Resultsunclassified

Efeito da luz no crescimento de mudas de Hymenaea parvifolia Huber

et al. 2007

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RESUMO -Este trabalho teve como objetivo determinar o efeito da intensidade de luz no crescimento de mudas de Hymenaea parvifolia Huber., bem como inferir sobre o seu grau de tolerância à sombra. Para tal, foi instalado um experimento em delineamento inteiramente casualizado, com quatro tratamentos (níveis de luz): pleno sol (PS), 50% de sombreamento, 70% de sombreamento e sombreamento natural (SN). Os níveis de 50 e 70% de sombreamento foram obtidos com o uso de telas de polipropileno preto, e o sombreamento natural constituiu a luminosidade natural sob um dossel fechado de floresta. Cada tratamento foi constituído de 10 repetições. Plantas sob sombreamento (50% e 70% de sombreamento) apresentaram maior altura, área foliar e razão de área foliar e poucas diferenças no acúmulo de massa seca quando comparadas com plantas mantidas a pleno sol. Como conseqüência, poucas diferenças foram observadas na taxa de crescimento relativo das mudas desses tratamentos. Todavia, mudas mantidas sob sombreamento natural foram as que exibiram menor taxa de crescimento relativo e taxa assimilatória líquida. Em conjunto, os resultados indicaram que Hymenaea parvifolia foi capaz de se ajustar para maximizar a aquisição de luz mesmo em condição muito limitante, como a proporcionada pelo sombreamento natural, e a produção de mudas dessa espécie vegetal pode ser realizada em viveiro desde a pleno sol, como a 50% ou 70% de sombreamento.Palavras-chave: Tolerância à sombra, radiação e taxa de crescimento. EFFECT OF LIGHT INTENSITY ON Hymenaea parvifolia Huber SEEDLING GROWTH ABSTRACT -The objective of this work was to determine the effect of light intensity on the growth of

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“…Unlike with survival, the growth of this species is affected by different levels of canopy openness, increasing in sites with more sunlight availability (Santos et al 2006). Comparatively, C. fissilis presented the greatest increase in height and diameter at the end of the study, mainly in the intermediately logged forest fragment.…”

Section: Discussionmentioning

confidence: 84%

Tree seedling survival and growth in logged and undisturbed seasonal deciduous forest fragments in central Brazil

Guarino

Scariot

2012

Journal of Forest Research

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We evaluated the survival and growth of Amburana cearensis, Cedrela fissilis, and Sterculia striata seedlings in three seasonally tropical dry forest fragments that were subjected to different logging levels (intact, intermediately and heavily logged). In each fragment, we planted 40 seedlings of each species and monitored these over a period of 1 year. The highest seedling survival rate (64%) occurred in the heavily logged fragment, which, however, also had the highest mortality risk for all species during the dry season. Only S. striata seedlings had different survival rates among the fragments. Height and diameter growth were higher at sites with higher canopy openness in the wet season. The survival and growth rates of seedlings planted in logged fragments indicate that this technique can be applied to restore and enrich logged forests of the Paranã River Basin.

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Morphological and physiological responses of Cedrela Fissilis Vellozo (Meliaceae) seedlings to light

Abstract: Seeds of Cedrela fissilis

Cited by 16 publications

References 33 publications

Tree regeneration and microclimate in a liana and bamboo-dominated semideciduous Atlantic Forest

Tree regeneration and microclimate in a liana and bamboo-dominated semideciduous Atlantic Forest

Efeito da luz no crescimento de mudas de Hymenaea parvifolia Huber

Tree seedling survival and growth in logged and undisturbed seasonal deciduous forest fragments in central Brazil

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