Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae)
In Ochroma pyramidale (Cav. ex Lam.) Urb., photon-saturated photosynthetic capacity (PNmax) was 13 μmol(CO2) m-2 s-1. Average stomatal conductance (gs) and water-use efficiency (WUE) were greater at high irradiance, about 260 mmol(H2O) m-2 s-1 and 2.15 g(C) kg-1(H2O), respectively. In the dark, gs v...
| Autor principal: | Marenco, R. A. |
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| Outros Autores: | De, J. F., Vieira, Gil |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Photosynthetica
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19096 |
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oai:repositorio:1-19096 |
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oai:repositorio:1-19096 Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) Marenco, R. A. De, J. F. Vieira, Gil Malvaceae Ochroma Ochroma Pyramidale In Ochroma pyramidale (Cav. ex Lam.) Urb., photon-saturated photosynthetic capacity (PNmax) was 13 μmol(CO2) m-2 s-1. Average stomatal conductance (gs) and water-use efficiency (WUE) were greater at high irradiance, about 260 mmol(H2O) m-2 s-1 and 2.15 g(C) kg-1(H2O), respectively. In the dark, gs values were about 30 % of maximum gs. Leaf nutrient contents on a leaf area basis were 131, 15, 36, 21, and 12 mmol m-2 for N, P, K, Ca, and Mg, respectively. Ochroma also accumulated a greater amount of soluble saccharides than starch, 128 versus 90 g kg-1(DM). The availability of N and Mg, but not P, Ca, or K, may limit photosynthetic rates of Ochroma in this site. 2020-06-15T22:05:21Z 2020-06-15T22:05:21Z 2001 Artigo https://repositorio.inpa.gov.br/handle/1/19096 10.1023/A:1015699927924 en Volume 39, Número 4, Pags. 539-543 Restrito Photosynthetica |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Malvaceae Ochroma Ochroma Pyramidale |
| spellingShingle |
Malvaceae Ochroma Ochroma Pyramidale Marenco, R. A. Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| topic_facet |
Malvaceae Ochroma Ochroma Pyramidale |
| description |
In Ochroma pyramidale (Cav. ex Lam.) Urb., photon-saturated photosynthetic capacity (PNmax) was 13 μmol(CO2) m-2 s-1. Average stomatal conductance (gs) and water-use efficiency (WUE) were greater at high irradiance, about 260 mmol(H2O) m-2 s-1 and 2.15 g(C) kg-1(H2O), respectively. In the dark, gs values were about 30 % of maximum gs. Leaf nutrient contents on a leaf area basis were 131, 15, 36, 21, and 12 mmol m-2 for N, P, K, Ca, and Mg, respectively. Ochroma also accumulated a greater amount of soluble saccharides than starch, 128 versus 90 g kg-1(DM). The availability of N and Mg, but not P, Ca, or K, may limit photosynthetic rates of Ochroma in this site. |
| format |
Artigo |
| author |
Marenco, R. A. |
| author2 |
De, J. F. Vieira, Gil |
| author2Str |
De, J. F. Vieira, Gil |
| title |
Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| title_short |
Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| title_full |
Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| title_fullStr |
Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| title_full_unstemmed |
Photosynthesis and leaf nutrient contents in Ochroma pyramidale (Bombacaceae) |
| title_sort |
photosynthesis and leaf nutrient contents in ochroma pyramidale (bombacaceae) |
| publisher |
Photosynthetica |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19096 |
| _version_ |
1787143198904156160 |
| score |
11.755432 |