Clonal propagation of the avocado: effects of the rooting step on graft union formation and development

The etiolation and layering technique that is used on avocados has two critical steps, namely, the rooting of clonal rootstock and graft union formation between the commercial variety and clonal rootstock. This study analyzed the rooting step of the clonal rootstock regarding its influence on graft...

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Autores principales:	Estay,Carmen, Cautín,Ricardo, Neaman,Alexander, Castro,Monica
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2016
Materias:	Grafting histological cross section Persea americana Mill rhizogenesis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200006
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spelling	oai:scielo:S0718-162020160002000062016-10-07Clonal propagation of the avocado: effects of the rooting step on graft union formation and developmentEstay,CarmenCautín,RicardoNeaman,AlexanderCastro,Monica Grafting histological cross section Persea americana Mill rhizogenesis The etiolation and layering technique that is used on avocados has two critical steps, namely, the rooting of clonal rootstock and graft union formation between the commercial variety and clonal rootstock. This study analyzed the rooting step of the clonal rootstock regarding its influence on graft union formation and development. The optimum times for grafting the commercial variety onto clonal avocado rootstock were determined under two greenhouse conditions, heating and no heating. The results showed that under greenhouse conditions without heating, there was higher survival (%) in plants that were grafted 60 days after the rooting steps in the clonal scion, and, in the experiments in a heated greenhouse, the highest survival rate (%) was observed in plants that were grafted 15 days after the rooting treatments. For both assays, the lowest survival rate was observed for grafts performed 30 days after the wounding and auxin application process. In histological cross sections of rootstocks at the wounding zone and in auxin treatments, a large number of emerging adventitious roots were developed at 30 days.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.43 n.2 20162016-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200006en10.4067/S0718-16202016000200006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Grafting histological cross section Persea americana Mill rhizogenesis
spellingShingle	Grafting histological cross section Persea americana Mill rhizogenesis Estay,Carmen Cautín,Ricardo Neaman,Alexander Castro,Monica Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
description	The etiolation and layering technique that is used on avocados has two critical steps, namely, the rooting of clonal rootstock and graft union formation between the commercial variety and clonal rootstock. This study analyzed the rooting step of the clonal rootstock regarding its influence on graft union formation and development. The optimum times for grafting the commercial variety onto clonal avocado rootstock were determined under two greenhouse conditions, heating and no heating. The results showed that under greenhouse conditions without heating, there was higher survival (%) in plants that were grafted 60 days after the rooting steps in the clonal scion, and, in the experiments in a heated greenhouse, the highest survival rate (%) was observed in plants that were grafted 15 days after the rooting treatments. For both assays, the lowest survival rate was observed for grafts performed 30 days after the wounding and auxin application process. In histological cross sections of rootstocks at the wounding zone and in auxin treatments, a large number of emerging adventitious roots were developed at 30 days.
author	Estay,Carmen Cautín,Ricardo Neaman,Alexander Castro,Monica
author_facet	Estay,Carmen Cautín,Ricardo Neaman,Alexander Castro,Monica
author_sort	Estay,Carmen
title	Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
title_short	Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
title_full	Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
title_fullStr	Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
title_full_unstemmed	Clonal propagation of the avocado: effects of the rooting step on graft union formation and development
title_sort	clonal propagation of the avocado: effects of the rooting step on graft union formation and development
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000200006
work_keys_str_mv	AT estaycarmen clonalpropagationoftheavocadoeffectsoftherootingstepongraftunionformationanddevelopment AT cautinricardo clonalpropagationoftheavocadoeffectsoftherootingstepongraftunionformationanddevelopment AT neamanalexander clonalpropagationoftheavocadoeffectsoftherootingstepongraftunionformationanddevelopment AT castromonica clonalpropagationoftheavocadoeffectsoftherootingstepongraftunionformationanddevelopment
_version_	1714202171146240000

Clonal propagation of the avocado: effects of the rooting step on graft union formation and development

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