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| Sérvulo,Ana C. O.; Vellame,Lucas M.; Casaroli,Derblai; Alves Júnior,José; Souza,Pedro H. de. |
| ABSTRACT The thermal dissipation probe (Granier method) is useful in the water deficit monitoring and irrigation management of African Mahogany, but its model needs proper adjustment. This paper aimed to adjust and validate the Granier sap flux model to estimate African Mahogany transpiration, measure transpiration using lysimeter and relate it to atmospheric water demand. Weather conditions, transpiration and sap flux were monitored in three units of 2.5-year-old African Mahogany trees in constant water table lysimeter, in Goiânia, GO. Sapwood area (SA), leaf area (LA), transpiration measured by lysimeter (TLYS) and estimated by sap flux (TSF) were evaluated. The SA comprised 55.24% of the trunk’s transversal section. The LA varied from 11.95 to 10.66 m2.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Khaya ivorensis; Sap flux; Transpiration; Lysimeter; Sapwood. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000500322 |
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| Albuquerque,Marcos Paulo Ferreira de; Moraes,Fabrícia Kelly Cabral; Santos,Rodolfo Inácio Nunes; Castro,Gledson Luiz Salgado de; Ramos,Edson Marcos Leal Soares; Pinheiro,Hugo Alves. |
| O objetivo deste trabalho foi avaliar a capacidade de plantas jovens de mogno-africano (Khaya ivorensis) em recuperar seu status hídrico e trocas gasosas após período de deficit hídrico. Plantas com aproximadamente 315 dias, irrigadas (controle) e não irrigadas, foram avaliadas aos 14 dias da suspensão da irrigação e após um, três e sete dias da retomada da irrigação (reidratação). No dia 14, o potencial hídrico foliar de antemanhã (Ψam) das plantas estressadas foi reduzido a -2,66 MPa. Com a restrição hídrica, foram observadas reduções significativas no conteúdo relativo de água na antemanhã (redução de 32%), na taxa de assimilação líquida de CO2 (90%), na condutância estomática (95%), na transpiração (93%) e na razão entre concentração intercelular e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Khaya ivorensis; Ajustamento osmótico; Prolina; Solutos compatíveis; Status hídrico; Trocas gasosas. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000100002 |
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| Souza,Aline das Graças; Smiderle,Oscar José; Chagas,Edvan Alves; Alves,Márcia Souza; Fagundes,Paulo Renato de Oliveira. |
| ABSTRACT African mahogany is a species preferred by many entrepreneurs as an investment in the forestry sector. However, there are few studies or research on the species, especially in Brazil. The aim of this work was to study the efficiency of nutrient uptake, accumulation, distribution and use in Khaya ivorensis and Khaya senegalensis, in addition to aspects of growth variables and of dry matter partitioning as a function of mineral fertilisation. Morphological, physiological and nutritional parameters were determined in the African mahogany plants 140 days after transplanting (DAT). The greatest zinc (Zn) content was detected in the shoots of both the Khaya ivorensis and Khaya senegalensis plants, accounting for more than 50% of the accumulated total of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Khaya senegalensis; Khaya ivorensis; Seedling production; Nutrient partitioning; Mineral nutrition. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200404 |
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