| Journal: | Acta scientiarum. Agronomy |
| Database: | PERIÓDICA |
| System number: | 000459966 |
| ISSN: | 1679-9275 |
| Authors: | Rickli Horst, Helena Cristina1 Bona, Cleusa2 Sant’Anna Santos, Bruno Francisco2 Koehler, Henrique Soares1 Wendling, Ivar3 Zuffellato Ribas, Katia Christina2 |
| Institutions: | 1Universidade Federal do Parana, Departamento de Fitotecnia e Fitossanitarismo, Curitiba, Parana. Brasil 2Universidade Federal do Parana, Departamento de Botanica, Curitiba, Parana. Brasil 3Empresa Brasileira de Pesquisa Agropecuaria, Florestas, Colombo, Parana. Brasil |
| Year: | 2021 |
| Volumen: | 43 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English abstract | Grafting 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 |
| Disciplines: | Agrociencias, Biología |
| Keyword: | Anatomía e histología, Fitotecnia, Araucaria angustifolia, Anatomía vegetal, Morfología vegetal, Brasil, Injertos |
| Keyword: | Anatomy and histology, Araucaria angustifolia, Plant anatomy, Plant morphology, Grafting |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
