Transgenic rootstock line
|
Nº of plants
challenged for a second time with PPV
|
Nº of plants
challenged for a second time with PPV
|
RT-PCR +
same cycle
after 8 weeks
|
RT-PCR +
same cycle
after 8 weeks
|
RT-PCR +
same cycle
after 13 weeks
|
RT-PCR +
same cycle
after 13 weeks
|
Switch %
from RT-PCR
positive to negative
|
Switch %
from RT-PCR
positive to negative
|