Propagation method plays a key role in fruit tree growing. However, no data are available on how new in vitro propagation techniques can affect the fruiting traits in different olive cultivars, in order to better assess their suitability for olive orchard intensification. The goal of this research was to in field evaluate the effect of micropropagation, compared with mist propagation method, on fruiting traits of the ‘Arbequina’ and ‘Coratina’ olive cultivars grown in an adult super high-density (SHD) orchard (1,660 trees ha-1). For this purpose, on 2 shoots per tree and on 9 trees per cultivars, 8 fruiting traits and the fruiting model of the shoot were studied for two years. Micropropagation reduced important fruiting traits, such as flowering and fruits density, and yield in ‘Coratina’, that showed a significant fall in the productive potential when the trees were micropropagated. In this cultivar micropropagation changed the fruiting model of the shoot as well. On the contrary, in ‘Arbequina’ the micropropagation influenced only two considered fruiting traits, without affecting yield nor fruiting model of the shoot. So, it can be concluded that the effects intensity of the micropropagation method would be related to the vigour of the propagated cultivar: more vigour more detrimental effects. These observations are essential for a best comparative varietal evaluation in new super high-density olive planting systems. To determine the impact of micropropagation on other olive varieties, more research is required.
Micropropagation affects fruiting traits of olive tree depending on cultivar vigor
Maldera, F.
Writing – Original Draft Preparation
;Costanza, L.Writing – Original Draft Preparation
;Vivaldi, G. A.Writing – Review & Editing
;Camposeo, S.Writing – Review & Editing
2024-01-01
Abstract
Propagation method plays a key role in fruit tree growing. However, no data are available on how new in vitro propagation techniques can affect the fruiting traits in different olive cultivars, in order to better assess their suitability for olive orchard intensification. The goal of this research was to in field evaluate the effect of micropropagation, compared with mist propagation method, on fruiting traits of the ‘Arbequina’ and ‘Coratina’ olive cultivars grown in an adult super high-density (SHD) orchard (1,660 trees ha-1). For this purpose, on 2 shoots per tree and on 9 trees per cultivars, 8 fruiting traits and the fruiting model of the shoot were studied for two years. Micropropagation reduced important fruiting traits, such as flowering and fruits density, and yield in ‘Coratina’, that showed a significant fall in the productive potential when the trees were micropropagated. In this cultivar micropropagation changed the fruiting model of the shoot as well. On the contrary, in ‘Arbequina’ the micropropagation influenced only two considered fruiting traits, without affecting yield nor fruiting model of the shoot. So, it can be concluded that the effects intensity of the micropropagation method would be related to the vigour of the propagated cultivar: more vigour more detrimental effects. These observations are essential for a best comparative varietal evaluation in new super high-density olive planting systems. To determine the impact of micropropagation on other olive varieties, more research is required.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
