| Crown gall (Agrobacterium tumefaciens) and Phytophthora root and crown rot (PRCR), caused by P. cryptogea, are two major limiting factors affecting peach (Prunus pérsica) production in Chile. At present, Nemaguard is the most important rootstock used in peach orchards, and although several clonal rootstocks are under development worldwide, there is little information regarding their susceptibility to crown gall and PRCR. Therefore this investigation was undertaken to study the susceptibility to A. tumefaciens and P. cryptogea of the clonally propagated rootstocks Cadman®-Avimag (P. pérsica x P. davidiana), Mr.S 2/5 (P. cerasifera x P. spinosa), Viking ([P. pérsica x P. davidiana] x [P. dulcís 'Jordanolo'x P. blireiana]), and Nemaguard (P. pérsica x P.... |
