Consulta: subjectFacets:"Cross hardening"
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Genotypic variation in morphology and freezing resistance of Eucalyptus globulus seedlings subjected to drought hardening in nursery
Provedor de dados: 69
Autores: Coopman,Rafael E; Jara,Jorge C; Escobar,Rene; Corcuera,Luis J; Bravo,Leon A.
Eucalyptus globulus Labill is one of the most planted species in Chile, because of its fast growth and superior pulp qualities. Nevertheless, the incidence of drought and frost damage immediately after planting is frequent. The purpose of this work was to study the effect of drought hardening on frost resistance and on variations in morphological traits that may increase drought resistance at nursery phase in four genotypes of E. globulus Labill. Drought hardening treatments consisted in induced water stress by watering restriction, until pre-dawn stem xylem water potentials (&amp;#936;pd) reached -0.2, -1.8 and -2.6 MPa. Two water stress-rewatering cycles were applied during 54 days of hardening. Plant and root biomasses were affected by the interaction...
Tipo: Journal article
Palavras-chave: Biomass allocation; Cross hardening; Genotypic selection; Planting stock quality; Water stress.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000100005