Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees
Olive micropropagation is nowadays possible but knowing if it induces juvenile traits and how juvenility, vigor and fruit productivity are affected is pivotal. Three trials were carried out during micropropagation and afterwards in the field. Three varieties were characterized during multiplication...
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| Format: | Article |
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MDPI AG
2020-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/10/11/1742 |
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| author | Davide Neri Tonino Cioccolanti Giuseppe Zuccherelli Oriano Navacchi Veronica Giorgi Enrico Maria Lodolini |
| author_facet | Davide Neri Tonino Cioccolanti Giuseppe Zuccherelli Oriano Navacchi Veronica Giorgi Enrico Maria Lodolini |
| author_sort | Davide Neri |
| collection | DOAJ |
| description | Olive micropropagation is nowadays possible but knowing if it induces juvenile traits and how juvenility, vigor and fruit productivity are affected is pivotal. Three trials were carried out during micropropagation and afterwards in the field. Three varieties were characterized during multiplication in vitro, after several subcultures. ‘Arbequina’ revealed higher shoot miniaturization than ‘Coratina’ and ‘Frantoio’, and likely-juvenile shoots with three or four leaves per node. The ‘Arbequina’ trees obtained from two- and three-leaves-per-node in vitro plantlets were compared to cuttings in the field. Two years after planting, flower-differentiated shoots were found in the apical part of the canopy in all tested trees while in this position the ramification was more intense on three-leaves-per-node trees. Architecture of ‘Arbequina’ trees from micropropagation and cuttings was finally characterized in a high-density commercial grove. Micropropagated trees showed a well distributed and deep root system, a regular conical shape of the canopy, a higher number of primary branches, and a reproductive ability equivalent to cuttings. In conclusion, some juvenile traits and vigor may appear in vitro and last after ex vitro acclimation, but no more than two years in the field. |
| first_indexed | 2024-03-10T15:00:09Z |
| format | Article |
| id | doaj.art-c7eb87c6fadc4dfaa114cca281f1305d |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-10T15:00:09Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-c7eb87c6fadc4dfaa114cca281f1305d2023-11-20T20:17:17ZengMDPI AGAgronomy2073-43952020-11-011011174210.3390/agronomy10111742Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive TreesDavide Neri0Tonino Cioccolanti1Giuseppe Zuccherelli2Oriano Navacchi3Veronica Giorgi4Enrico Maria Lodolini5Department of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, ItalyIstituto Tecnico Agrario e Ambientale, 62100 Macerata, ItalyVITROPLANT, 47521 Cesena, ItalyVITROPLANT, 47521 Cesena, ItalyDepartment of Agricultural, Food and Environmental Sciences, Marche Polytechnic University, 60131 Ancona, ItalyResearch Centre for Olive, Fruit and Citrus Crops, Council for Agricultural Research and Economics, 00134 Rome, ItalyOlive micropropagation is nowadays possible but knowing if it induces juvenile traits and how juvenility, vigor and fruit productivity are affected is pivotal. Three trials were carried out during micropropagation and afterwards in the field. Three varieties were characterized during multiplication in vitro, after several subcultures. ‘Arbequina’ revealed higher shoot miniaturization than ‘Coratina’ and ‘Frantoio’, and likely-juvenile shoots with three or four leaves per node. The ‘Arbequina’ trees obtained from two- and three-leaves-per-node in vitro plantlets were compared to cuttings in the field. Two years after planting, flower-differentiated shoots were found in the apical part of the canopy in all tested trees while in this position the ramification was more intense on three-leaves-per-node trees. Architecture of ‘Arbequina’ trees from micropropagation and cuttings was finally characterized in a high-density commercial grove. Micropropagated trees showed a well distributed and deep root system, a regular conical shape of the canopy, a higher number of primary branches, and a reproductive ability equivalent to cuttings. In conclusion, some juvenile traits and vigor may appear in vitro and last after ex vitro acclimation, but no more than two years in the field.https://www.mdpi.com/2073-4395/10/11/1742cuttingin vitro propagationjuvenility<i>Olea europaea</i> L.vigor |
| spellingShingle | Davide Neri Tonino Cioccolanti Giuseppe Zuccherelli Oriano Navacchi Veronica Giorgi Enrico Maria Lodolini Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees Agronomy cutting in vitro propagation juvenility <i>Olea europaea</i> L. vigor |
| title | Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees |
| title_full | Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees |
| title_fullStr | Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees |
| title_full_unstemmed | Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees |
| title_short | Micropropagation Effects on Juvenile Traits, Flower Differentiation, and Tree Architecture in Young Olive Trees |
| title_sort | micropropagation effects on juvenile traits flower differentiation and tree architecture in young olive trees |
| topic | cutting in vitro propagation juvenility <i>Olea europaea</i> L. vigor |
| url | https://www.mdpi.com/2073-4395/10/11/1742 |
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