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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
30/09/1999 |
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Data da última atualização: |
30/09/1999 |
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Autoria: |
EL-SHARKAWY, M. A.; COCK, J. H. |
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Afiliação: |
Centro Internacional de Agricultura Tropical, Apartado Aereo 6713, Cali, Colombia. |
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Título: |
C3-C4 intermediate photosynthetic characteristics of cassava (Manihot esculenta Crantz) |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Photosynthesis Research, v.12, p.219-235, 1987 |
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Idioma: |
Inglês |
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Conteúdo: |
The gas exchange characteristics of cassava were compared with one C3 species, common bean, and two C4 species, maize and amaranthus. Cassava leaf photorespiration, about 12% of maximum net photosynthesis in normal air, and the CO2 release in CO2 compensation point of whole leaves (25cm3 CO2m-3) was intermediate between C3 and C4 species values. Gas exchange was restricted to either the upper or lower surface of amphistomatous leaves by covering one side of the leaf with silicone grease. The CO2 commpensation point of the upper leaf surface was less than 6cm3 CO2m-3 and the CO2 release into CO2-free air in the light was essentially zero. |
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Palavras-Chave: |
C3; C4 species; CO2 compensation point; Internal CO2 recycling. |
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Thesaurus Nal: |
cassava; photorespiration. |
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Categoria do assunto: |
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Marc: |
LEADER 01216naa a2200205 a 4500
001 1648310
005 1999-09-30
008 1987 bl --- 0-- u #d
100 1 $aEL-SHARKAWY, M. A.
245 $aC3-C4 intermediate photosynthetic characteristics of cassava (Manihot esculenta Crantz)
260 $c1987
520 $aThe gas exchange characteristics of cassava were compared with one C3 species, common bean, and two C4 species, maize and amaranthus. Cassava leaf photorespiration, about 12% of maximum net photosynthesis in normal air, and the CO2 release in CO2 compensation point of whole leaves (25cm3 CO2m-3) was intermediate between C3 and C4 species values. Gas exchange was restricted to either the upper or lower surface of amphistomatous leaves by covering one side of the leaf with silicone grease. The CO2 commpensation point of the upper leaf surface was less than 6cm3 CO2m-3 and the CO2 release into CO2-free air in the light was essentially zero.
650 $acassava
650 $aphotorespiration
653 $aC3
653 $aC4 species
653 $aCO2 compensation point
653 $aInternal CO2 recycling
700 1 $aCOCK, J. H.
773 $tPhotosynthesis Research$gv.12, p.219-235, 1987
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| 1. |  | PORTO, M. C. M.; COCK, J. H.; CADENA, G. G. de; PARRA, G. E.; HERNÁNDEZ, A. D. P. Acúmulo e Distribuição de Matéria Seca em Mandioca Submetida a Deficiência Hídrica. Pesquisa Agropecuária Brasileira, Brasília, v. 24, n.5, p. 557.565, maio 1989| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 1 | |
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