Visual and anatomical analysis of welding quality x scion survival in Araucaria angustifolia

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dc.creatorHelena Cristina Rickli-Horst
dc.creatorCleusa Bona
dc.creatorBruno Francisco Sant’Anna-Santos
dc.creatorHenrique Soares Koehler
dc.creatorIvar Wendling
dc.creatorKatia Christina Zuffellato-Ribas
dc.date2021
dc.date.accessioned2026-07-07T03:51:59Z
dc.descriptionGrafting is an alternative method for the early production of Araucaria angustifolia seeds, and welding quality is essential for the success of the technique. The objective of this study was to create a classification of welding quality to estimate the percentage of scion survival. The patch and flute grafting techniques were used in a greenhouse and in the field. Survival was evaluated 270 days after grafting (DAG). At 60 DAG, observations of the graft connection region were made with the naked eye, classifying the connections into four welding classes. After 160 DAG, transverse cuts were performed on each class and visually and anatomically evaluated. Flute grafting presented higher initial survival (79%), but at 180 DAG, the survival rate of both techniques was similar (48% for flute and 41% for patch). There was greater scion survival for the class that had only two regions in contact with discontinuity in the bark. Stabilization of survival occurred after 180 DAG, regardless of the welding class. Visually, there were differences in welding quality; however, anatomically, all classes presented vascular connections. The visual welding quality assessment underestimated the percentage of scion survival. However, the vascular connection and development of parenchymatous tissue are promising for diagnosing grafting success.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303067924011
dc.identifierhttps://www.redalyc.org/journal/3030/303067924011/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924011/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303067924011/303067924011.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303067924011/movil
dc.identifier10.4025/actasciagron.v43i1.45509
dc.identifier.urihttp://hdl.handle.net/123456789/445355
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.43
dc.subjectAgrociencias
dc.titleVisual and anatomical analysis of welding quality x scion survival in Araucaria angustifolia
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá