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Physiological Responses to Hypoxia and Manganese in Eucalyptus Clones with Differential Tolerance to Vale do Rio Doce Shoot Dieback Rev. Bras. Ciênc. Solo
Harguindeguy,Ignácio; Castro,Gustavo Franco de; Novais,Sarah Vieira; Vergutz,Leonardus; Araujo,Wagner Luiz; Novais,Roberto Ferreira.
ABSTRACT: Vale do Rio Doce shoot dieback (VRDSD) is an anomaly whose cause seems to be associated with hypoxic conditions and their consequences (excess Mn and Fe) triggered by elevation of the water table in areas with poor drainage. Different plants have distinct survival strategies under this form of stress. The objective of this study was to understand the physiological responses involved in the differential tolerance of eucalyptus clones to VRDSD and their relationship to hypoxia and excess Mn. A hydroponic experiment was carried out using a 2 × 2 × 2 factorial arrangement, two eucalyptus clones with different levels of tolerance to VRDSD (sensitive Urograndis hybrid - 1213; and the tolerant Rio Claro hybrid - Eucalyptus grandis x unknown - 2719), two...
Tipo: Info:eu-repo/semantics/article Palavras-chave: VRDSD; Water table fluctuation; Soil waterlogging; Hydric stress; Mn toxicity.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100504
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