Wild Olive Genotypes as a Valuable Source of Resistance to Defoliating Verticillium dahliae.

ABSTRACT: Resistance to the defoliating pathotype of Verticillium dahliae has been evaluated in a pool of 68 wild genotypes of olive belonging to the SILVOLIVE collection. Resistance was evaluated by assessing symptom severity using a 0-4 rating scale, estimating the relative area under the disease progress curve (RAUDPC), determining the percentage of dead plants (PDP), and measuring the evolution of morphological parameters in inoculated plants over time. In addition, the density levels of V. dahliae in the stem of root-inoculated genotypes have been quantified by means of quantitative real-time PCR at 35 and 120 days after inoculation (dai). Fifteen genotypes (22%) were cataloged as resistant to V. dahliae (i.e., disease parameters did not significantly differ from those of t

SUBMITTER: Diaz-Rueda P 

PROVIDER: S-EPMC8281240 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature