Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King)
In the forest succession intermediate and climax tree species usually exhibit slow growth. The aim of this study was to investigate the biomass accumulation and photosynthetic traits in young S. macrophylla plants subjected to two light environments (1-open field and 2- natural shade). We investigat...
| Autor principal: | Gonçalves, José Francisco Carvalho de |
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| Outros Autores: | Silva, Carlos Eduardo Moura da, Justino, Gilberto Costa, Nina, Adamir da Rocha |
| Grau: | Artigo |
| Idioma: | pt_BR |
| Publicado em: |
Scientia Forestalis/Forest Sciences
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/16113 |
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oai:repositorio:1-16113 |
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dspace |
| spelling |
oai:repositorio:1-16113 Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) Efeito do ambiente de luz no crescimento de plantas jovens de mogno (Swietenia macrophylla King) Gonçalves, José Francisco Carvalho de Silva, Carlos Eduardo Moura da Justino, Gilberto Costa Nina, Adamir da Rocha Biomass Accumulation Chlorophyll Contents Chlorophyll Pigments Electron Transport Rate Field Treatments Forest Succession Gas Exchange Leaf Area Ratios Leaf Gas Exchange Light Environment Photosynthetic Traits Photosynthetically Active Radiation Root System Slow Growth Specific Leaf Area Stem Diameter Tree Species Biomass Carboxylation Chlorophyll Forestry Plants (botany) Quantum Yield Ecology Biomass Carboxylation Chlorophylls Ecology Forestry Pigment Plants In the forest succession intermediate and climax tree species usually exhibit slow growth. The aim of this study was to investigate the biomass accumulation and photosynthetic traits in young S. macrophylla plants subjected to two light environments (1-open field and 2- natural shade). We investigated growth, biomass gain, chlorophyll contents and leaf gas exchange. In open field treatment, the increase photosynthetic performance reflected on the biomass accumulation of the plants, mainly due to the higher growth of the root system and stem diameter. This result happened due to the best use of photosynthetically active radiation, verified by increases in electron transport rate and quantum yield in plants grown in sunlight. This effect favors the carboxylation that was additionally induced by increased leaf gas exchange. On the other hand, the acclimation in the shade exposed seedlings was demonstrated by an increase in leaf area ratio and specific leaf area. We conclude that S. macrophylla seedlings showed physiological plasticity under high or low irradiance. But, above all, when exposed to high irradiance carbon, gain is optimized. 2020-05-24T21:49:08Z 2020-05-24T21:49:08Z 2012 Artigo https://repositorio.inpa.gov.br/handle/1/16113 pt_BR Volume 40, Número 95, Pags. 337-344 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Scientia Forestalis/Forest Sciences |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
pt_BR |
| topic |
Biomass Accumulation Chlorophyll Contents Chlorophyll Pigments Electron Transport Rate Field Treatments Forest Succession Gas Exchange Leaf Area Ratios Leaf Gas Exchange Light Environment Photosynthetic Traits Photosynthetically Active Radiation Root System Slow Growth Specific Leaf Area Stem Diameter Tree Species Biomass Carboxylation Chlorophyll Forestry Plants (botany) Quantum Yield Ecology Biomass Carboxylation Chlorophylls Ecology Forestry Pigment Plants |
| spellingShingle |
Biomass Accumulation Chlorophyll Contents Chlorophyll Pigments Electron Transport Rate Field Treatments Forest Succession Gas Exchange Leaf Area Ratios Leaf Gas Exchange Light Environment Photosynthetic Traits Photosynthetically Active Radiation Root System Slow Growth Specific Leaf Area Stem Diameter Tree Species Biomass Carboxylation Chlorophyll Forestry Plants (botany) Quantum Yield Ecology Biomass Carboxylation Chlorophylls Ecology Forestry Pigment Plants Gonçalves, José Francisco Carvalho de Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| topic_facet |
Biomass Accumulation Chlorophyll Contents Chlorophyll Pigments Electron Transport Rate Field Treatments Forest Succession Gas Exchange Leaf Area Ratios Leaf Gas Exchange Light Environment Photosynthetic Traits Photosynthetically Active Radiation Root System Slow Growth Specific Leaf Area Stem Diameter Tree Species Biomass Carboxylation Chlorophyll Forestry Plants (botany) Quantum Yield Ecology Biomass Carboxylation Chlorophylls Ecology Forestry Pigment Plants |
| description |
In the forest succession intermediate and climax tree species usually exhibit slow growth. The aim of this study was to investigate the biomass accumulation and photosynthetic traits in young S. macrophylla plants subjected to two light environments (1-open field and 2- natural shade). We investigated growth, biomass gain, chlorophyll contents and leaf gas exchange. In open field treatment, the increase photosynthetic performance reflected on the biomass accumulation of the plants, mainly due to the higher growth of the root system and stem diameter. This result happened due to the best use of photosynthetically active radiation, verified by increases in electron transport rate and quantum yield in plants grown in sunlight. This effect favors the carboxylation that was additionally induced by increased leaf gas exchange. On the other hand, the acclimation in the shade exposed seedlings was demonstrated by an increase in leaf area ratio and specific leaf area. We conclude that S. macrophylla seedlings showed physiological plasticity under high or low irradiance. But, above all, when exposed to high irradiance carbon, gain is optimized. |
| format |
Artigo |
| author |
Gonçalves, José Francisco Carvalho de |
| author2 |
Silva, Carlos Eduardo Moura da Justino, Gilberto Costa Nina, Adamir da Rocha |
| author2Str |
Silva, Carlos Eduardo Moura da Justino, Gilberto Costa Nina, Adamir da Rocha |
| title |
Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| title_short |
Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| title_full |
Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| title_fullStr |
Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| title_full_unstemmed |
Effect of light environment on growth of young plants of mahogany (Swietenia macrophylla King) |
| title_sort |
effect of light environment on growth of young plants of mahogany (swietenia macrophylla king) |
| publisher |
Scientia Forestalis/Forest Sciences |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/16113 |
| _version_ |
1787144889800065024 |
| score |
11.680826 |