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| Sgrott,Andressa Franzoi; Booz,Maristela R.; Pescador,Rosete; Heck,Teresinha Catarina; Stürmer,Sidney Luiz. |
| Inoculation with arbuscular mycorrhizal fungi (AMF) of tree seedlings in the nursery is a biotechnological strategy to improve growth, survival after transplanting, biomass production and to reduce the use of fertilizers. Archontophoenix alexandrae and Euterpe edulis are palm species used in southern Brazil to produce the palm heart, the latter being included in the list of threatened species due to the overexploitation of its native population. The purpose of this paper was to evaluate the effect of mycorrhizal inoculation on growth and physiological parameters of A. alexandrae and E. edulis. After germination, the seedlings were inoculated (AMF) or not (CTL) with AMF in the treatments. Values of chlorophyll content, biomass and shoot phosphorus were not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Palm species; Soluble carbohydrates; Plant carbon; Field inoculation; Allometric equations. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400005 |
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| Mengarda,Liana Hilda Golin; Milanez,Camilla Rozindo Dias; Silva,Diolina Moura; Aguilar,Marco Antonio Galeas; Cuzzuol,Geraldo Rogério Faustini. |
| This study aimed to characterize the alarm and resistance phases of stress of Caesalpinia echinata under intense irradiance in order to better define its position on forest succession. The alarm phase was identified by rapid reduction in the maximum quantum yield of PSII primary photochemical reactions (ΦP0 = FV/FM) and Performance Index (PIABS) followed by total leaf abscission in the first week of exposure to direct sunlight. The new leaves grown showed recovery of chlorophyll a parameters, increase in blade thickness, elongation of the palisade and spongy parenchymas, higher water content, and reduction of specific leaf area. These changes were associated with the osmoprotector of sucrose and antioxidative of raffinose effects, which indicate an... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Forest succession; Light stress; Photoinhibition; Leaf anatomy; Soluble carbohydrates. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000300003 |
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| Espíndola Barquera, María de la Cruz. |
| La investigación aquí reportada examina la relación entre el amarre de fruto de aguacate ‘Hass’ y las aplicaciones de N, AG3 y anillado, así como los cambios en el nitrógeno reducido, variables fotosintéticas, carbohidratos solubles, AG3, anormalidades florales y calidad de fruto. La investigación se realizó en la floración II durante el ciclo de baja (2003-2004 y 2005-2006) y alta producción (2004-2005). La aplicación de N realizada durante el crecimiento vegetativo I incrementó el amarre inicial de fruto, entre 168% y 207%, sólo en el primer año de evaluación (2003-2004). No hubo efecto en la acumulación de nitrógeno reducido, variables fotosintéticas, anormalidades florales y calidad de fruto. Los tratamientos aplicados en el estado ocho del desarrollo... |
| Tipo: Tesis |
Palavras-chave: Amarre inicial; Amarre final; Fotosíntesis; Anormalidades florales; Calidad de fruto; Doctorado; Fruticultura; Fruit set initial; Fruit set final; Soluble carbohydrates; Floral abnormalities; Fruit quality. |
| Ano: 2007 |
URL: http://hdl.handle.net/10521/1644 |
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