Banca de DEFESA: GERSON DIEGO PAMPLONA ALBUQUERQUE

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : GERSON DIEGO PAMPLONA ALBUQUERQUE
DATA : 30/01/2020
HORA: 14:30
LOCAL: Auditório Pós Graduação
TÍTULO:

SILICON AS A MITIGATOR OF ZINC TOXICITY IN YOUNG PLANTS OF Schizolobium amazonicum HUBER EX DUCKE

PALAVRAS-CHAVES:

Beneficial element. Phytoremediation. Heavy metal. Paricá

PÁGINAS: 55
GRANDE ÁREA: Ciências Agrárias
ÁREA: Agronomia
SUBÁREA: Ciência do Solo
ESPECIALIDADE: Fertilidade do Solo e Adubação
RESUMO:

Zinc is an essential element to plants, however, in excess it can be toxic to the vegetable. Phytoremediation of soil contaminated with Zn is effective to reduce the toxic effects of this metal to the environment. Therefore, it is necessary to identify species tolerant to these conditions. Schizolobium amazonicum is an arboreal species native to the Amazon used for the recovery of degraded areas. Silicon is a beneficial element that increases plant tolerance to biotic and abiotic stresses. Therefore, the objective of this work was to evaluate the morphological, physiological, biochemical and nutritional effects of Si on young plants of S. amazonicum submitted to Zn toxicity. A 4 x 2 factorial randomized block design with four zinc concentrations (1, 150, 300 and 600 μM) and two concentrations of silicon (0 and 1.5 mM) with five replicates per 30 days was used. The nutritional status, growth, tolerance to excess zinc, chlorophyll a fluorescence and gaseous changes in seedlings were evaluated. Preliminary results show that high zinc levels reduced plant growth and nutrient uptake, but the application of Si attenuated this effect. S. amazonicum showed low translocation and moderate and high tolerance to Zn concentrations indicating that this species can be used as a phytostabilizer of this metal.conditionsTraduções de conditionSubstantivoFrequênciaacondiçãocondition, status, requirement, proviso, state, plightoestadostate, status, condition, estate, country, orderasituaçãosituation, position, condition, state, location, layacircunstânciacircumstance, condition, fact, case, instance, respectacláusulaclause, proviso, stipulation, condition, article, passageaparticularidadeparticularity, peculiarity, particular, circumstance, point, conditionaposição socialcondition, degree, state, rankoincidenteincident, incidental, scene, circumstance, passage, conditionofatofact, suit, event, truth, act, matterVerbocondicionarconditionacondicionarcondition, pack, stow, wrap, put upregularregulate, set, order, correct, condition, postdeterminardetermine, ascertain, set, define, order, prescribeestipularstipulate, date, covenant, conditionlimitarlimit, narrow, confine, bound, contain, borderDefinições de conditionSubstantivo1the state of something, especially with regard to its appearance, quality, or working order.the wiring is in good conditionSinônimos:state shape order2the circumstances affecting the way in which people live or work, especially with regard to their safety or well-being.harsh working and living conditionsSinônimos:circumstances surroundings environment situation setup setting habitatVerbo1have a significant influence on or determine (the manner or outcome of something).national choices are conditioned by the international political economySinônimos:constrain control govern determine decide affect touch form shape guide sway bias+3 definiçõesSinônimos de conditionSubstantivoweather conditionSubstantivostate circumstances fitness disorder stipulation status circumstance precondition term shapeVerboconstrain train treat improve discipline qualify+67 sinônimosVeja tambémcondition

MEMBROS DA BANCA:
Externo à Instituição - GLAUCO ANDRÉ DOS SANTOS NOGUEIRA - UFRA
Externo à Instituição - HELLEN SIGLIA DEMETRIO BARROS - SANAR
Externo à Instituição - LUMA CASTRO DE SOUZA - PMCP
Presidente - 1228204 - MARIO LOPES DA SILVA JUNIOR
Externo à Instituição - WALDEMAR VIANA DE ANDRADE JÚNIOR - SEMAS