TY - JOUR 
A1 - Navarro, Luis
AU - Pina, José A.
AU - Juárez, José
AU - Ballester-Olmos, José F.
T1 - Elimination of a Bud Union Abnormality of Sweet Orange Grafted on Rough Lemon by Shoot-tip Grafting in Vitro
Y1 - 1993
SN - 2313-5123
UR - http://hdl.handle.net/20.500.11939/7781
AB - A bud union abnormality of several old line sweet orange varieties grafted on rough lemon rootstock was observed for the first time in Spain in container-grown plants. Shoot-tip grafting in vitro was carried out on these varieties as part of the standard procedure in the Spanish Citrus Variety Improvement Program. Ten propagations from a micrografted source of Cadenera punchosa sweet orange on rough lemon growing in containers under outdoor conditions were found free of symptoms after 6 yr. Ten similar propagations graft-inoculated with the parent source and ten propagations made directly from the parent showed the bud union abnormality after 6 yr. These results indicate that the bud union abnormality observed in several varieties was produced by a graft-transmissible agent and that it could be eliminated by shoot-tip grafting in vitro.
KW - Bud union disorder
KW - Shoot-tip grafting in vitro
KW - Micrografting
KW - Citrus Variety Improvement Program
KW - F02  Plant propagation
KW - H50  Miscellaneous plant disorders
KW - Buds
KW - Grafting
LA - en
PB - IOCV
ER -