Maturation in Corymbia torelliana × C. citriodora stock plants: effects of pruning height on shoot production, adventitious rooting capacity, stem anatomy, and auxin and abscisic acid concentrations.

WENDLING, I.; WASRBURTON, P. M.; TRUEMAN, S. J.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	WENDLING, I.	pt_BR
dc.contributor.author	WASRBURTON, P. M.	pt_BR
dc.contributor.author	TRUEMAN, S. J.	pt_BR
dc.date.accessioned	2015-10-19T11:11:11Z	pt_BR
dc.date.available	2015-10-19T11:11:11Z	pt_BR
dc.date.created	2015-10-19	pt_BR
dc.date.issued	2015	pt_BR
dc.identifier.citation	Forests, v. 6, n. 10, p. 3763-3778, 2015.	pt_BR
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1026706	pt_BR
dc.description	Repeated pruning of stock plants is a common approach to delaying maturation and maintaining the propagation ability of cuttings, but little is known about the hormonal or anatomical basis for this phenomenon. We tested the effect of two different stock-plant pruning heights (15 cm and 30 cm) on shoot production, rooting capacity and rooted cutting vigour of six clones of the eucalypt Corymbia torelliana × C. citriodora. We determined whether differences in rooting potential were related to indole-3-acetic (IAA) and abscisic acid (ABA) concentrations, or the degree of lignification or sclerification, of the cuttings. Maintaining stock plants at 15 cm height sometimes reduced the production of stem cuttings. However, it often increased the ensuing percentage of cuttings that formed roots, with mean rooting across all clones increasing from 30%?53%. Therefore, the number of rooted cuttings produced by short stock plants was similar to, or higher than, the number produced by tall stock plants. Cuttings from shorter stock plants had faster root elongation and occasionally greater root dry mass, shoot dry mass or shoot height than cuttings from tall stock plants. These differences in rooting potential were generally not related to differences in IAA or ABA concentrations of the cuttings or to differences in their stem anatomy. Pruning at the lower height was more effective in maintaining clonal juvenility, supporting previous findings that stock plant maturation is a limiting factor in clonal propagation of Corymbia torelliana × C. citriodora.	pt_BR
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Espécie exótica	pt_BR
dc.subject	Raízes adventícias	pt_BR
dc.subject	Juvenilidade	pt_BR
dc.subject	Hormônios vegetais	pt_BR
dc.subject	Propagation	pt_BR
dc.title	Maturation in Corymbia torelliana × C. citriodora stock plants: effects of pruning height on shoot production, adventitious rooting capacity, stem anatomy, and auxin and abscisic acid concentrations.	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.date.updated	2016-02-11T11:11:11Z	pt_BR
dc.subject.thesagro	Propagação Vegetativa	pt_BR
dc.subject.nalthesaurus	Corymbia	pt_BR
dc.subject.nalthesaurus	Eucalyptus	pt_BR
dc.subject.nalthesaurus	adventitious roots	pt_BR
dc.subject.nalthesaurus	juvenility	pt_BR
dc.subject.nalthesaurus	plant hormones	pt_BR
riaa.ainfo.id	1026706	pt_BR
riaa.ainfo.lastupdate	2016-02-11	pt_BR
dc.identifier.doi	10.3390/f6103763	pt_BR
dc.contributor.institution	IVAR WENDLING, CNPF; Paul M. Warburton, CSIRO; Stephen J. Trueman, University of the Sunshine Coast.	pt_BR
Aparece en las colecciones:	Artigo em periódico indexado (CNPF)

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