This study assessed the responses to waterlogging conditions of a few new interspecific hybrids belonging to the Prunus genus and resistant to root knot nematodes. Leaf photosynthetic and transpiration activities were measured during the waterlogging period (30 days) and the recovery phase (18 days). In general, the interspecific parents (P. amygdalus × P. persica) appeared to be very sensitive to waterlogging (all the plants died), while the parents belonging to P. cerasifera appeared to be more tolerant. The interspecific crosses P. cerasifera × (P. amygdalus × P. persica) displayed a good response to stress, showing a slight decrease in gas exchange during waterlogging and a complete recovery of leaf functionality in the 18days following the re-establishing of optimal soil water conditions.
Performance of new selections of Prunus rootstocks resistant to root knot nematodes in waterlogging conditions
DICHIO, Bartolomeo;XILOYANNIS, Cristos;CELANO, Giuseppe;VICINANZA, LUIGI;
2004-01-01
Abstract
This study assessed the responses to waterlogging conditions of a few new interspecific hybrids belonging to the Prunus genus and resistant to root knot nematodes. Leaf photosynthetic and transpiration activities were measured during the waterlogging period (30 days) and the recovery phase (18 days). In general, the interspecific parents (P. amygdalus × P. persica) appeared to be very sensitive to waterlogging (all the plants died), while the parents belonging to P. cerasifera appeared to be more tolerant. The interspecific crosses P. cerasifera × (P. amygdalus × P. persica) displayed a good response to stress, showing a slight decrease in gas exchange during waterlogging and a complete recovery of leaf functionality in the 18days following the re-establishing of optimal soil water conditions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
