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| Registros recuperados : 4 | |
| 3. |  | MAZAROTTO, E. J.; SANTOS, F.; REGO, G. M. S.; SANTOS, A. F. dos; PIMENTEL, I. C. Detecção de fungos endofíticos em sementes de espécies florestais nativas. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 51., 2019, Recife. Anais... Brasília, DF: Sociedade Brasileira de Fitopatologia, 2019. p. 596.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 4 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
30/01/2008 |
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Data da última atualização: |
21/12/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Nacional - A |
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Autoria: |
LIMA FILHO, J. M. P. |
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Afiliação: |
José Moacir Pinheiro Lima Filho, CPATSA. |
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Título: |
Water status and gas exchange of umbu plants (Spondias tuberosa Arr. Cam.) propagated by seeds and stem cuttings. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Revista Brasileira de Fruticultura, Jaboticabal, v. 29, n. 2, p. 355-358, ago. 2007. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
The experiment was carried out at the Embrapa Semi-Árido, Petrolina-PE, Brazil, in order to study the physiological responses of umbu plants propagated by seeds and by stem cuttings under water stress conditions, based on leaf water potential and gas exchange measurements. Data were collected in one-year plants established in pots containing 30 kg of a sandy soil and submitted to twenty-day progressive soil water deficit. The evaluations were based on leaf water potential and gas exchange data collection using psychrometric chambers and a portable infra-red gas analyzer, respectively. Plants propagated by seeds maintained a significantly higher water potential, stomatal conductance, transpiration and photosynthesis under decreasing soil water availability. However, plants propagated by stem cuttings were unable to maintain a favorable internal water balance, reflecting negatively on stomatal conductance and leaf gas exchange. This fact is probably because umbu plants propagated by stem cuttings are not prone to formation of root tubers which are reservoirs for water and solutes. Thus, the establishing of umbu plants propagated by stem cuttings must be avoided in areas subjected to soil water deficit. |
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Palavras-Chave: |
Condutância estomática; Root tubers; Transpiração; Túbera. |
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Thesagro: |
Fotossíntese; Potencial Hídrico; Umbu. |
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Thesaurus NAL: |
photosynthesis; stomatal conductance; transpiration; water potential. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/135969/1/ID-36791.pdf
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Marc: |
LEADER 01988naa a2200253 a 4500
001 1160533
005 2015-12-21
008 2007 bl uuuu u00u1 u #d
100 1 $aLIMA FILHO, J. M. P.
245 $aWater status and gas exchange of umbu plants (Spondias tuberosa Arr. Cam.) propagated by seeds and stem cuttings.
260 $c2007
520 $aThe experiment was carried out at the Embrapa Semi-Árido, Petrolina-PE, Brazil, in order to study the physiological responses of umbu plants propagated by seeds and by stem cuttings under water stress conditions, based on leaf water potential and gas exchange measurements. Data were collected in one-year plants established in pots containing 30 kg of a sandy soil and submitted to twenty-day progressive soil water deficit. The evaluations were based on leaf water potential and gas exchange data collection using psychrometric chambers and a portable infra-red gas analyzer, respectively. Plants propagated by seeds maintained a significantly higher water potential, stomatal conductance, transpiration and photosynthesis under decreasing soil water availability. However, plants propagated by stem cuttings were unable to maintain a favorable internal water balance, reflecting negatively on stomatal conductance and leaf gas exchange. This fact is probably because umbu plants propagated by stem cuttings are not prone to formation of root tubers which are reservoirs for water and solutes. Thus, the establishing of umbu plants propagated by stem cuttings must be avoided in areas subjected to soil water deficit.
650 $aphotosynthesis
650 $astomatal conductance
650 $atranspiration
650 $awater potential
650 $aFotossíntese
650 $aPotencial Hídrico
650 $aUmbu
653 $aCondutância estomática
653 $aRoot tubers
653 $aTranspiração
653 $aTúbera
773 $tRevista Brasileira de Fruticultura, Jaboticabal$gv. 29, n. 2, p. 355-358, ago. 2007.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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