Field evaluation of 'Guardian'TM peach rootstock to different root-knot nematode species
Nyczepir, A.P.; Beckman, T.G.; Reighard, G.L.
Acta Horticulturae 713: 303-309
ISSN/ISBN: 0567-7572 Accession: 012914547
Advanced lines of 'Guardian'TM (i.e., SL2891 and SC 3-17-7) and 'Lovell' peach rootstocks were evaluated for their susceptibility and growth response to Meloidogyne incognita (GA-peach isolate) and M. javanica (NC-tobacco isolate) 23 months after inoculation in field microplots. Results indicate that there was a significant interaction between nematode and rootstock for above-ground tree growth. Growth suppression, as measured by trunk diameter and fresh shoot weight of SC 3-17-7 was greater (P<=0.05) in the presence of M. javanica as compared to the presence of M. incognita or to the uninoculated plots. 'Guardian'TM line SL2891 growth was not affected by either nematode when compared to the uninoculated plots.