Evaluation of calibrachoa cultivars for black root rot resistance, 2019.

Plant Disease Management Reports

By Lindsey E. Becker; Marc A. Cubeta in Extension

March 9, 2019

Publication

At the top is 'owl:Thing' pointing to 3 superclasses: 'Medical Procedure Encounter or Treatment', 'Condition', and 'Maternal Descriptor.' These, in turn, point to specific subclasses. For example, superclass Condition points to subclasses 'infant or fetus condition' and 'maternal condition'

Figure. Mean disease severity of seven Calibrachoa cultivars after harvest.

Abstract

Five cultivars of calibrachoa were evaluated for resistance against six isolates of Thielaviopsis basicola (Tb), causal agent of black root rot. Isolates of Tb were sourced from calibrachoa, lettuce, pansy, and viola. Standardized inoculations were carried out in a greenhouse setting, with plants inoculated at transplanting. All cultivars exhibited symptoms of black root rot which includes stunting, chlorosis, and wilting. While all cultivars were susceptible, some cultivars exhibited higher disease ratings than others. Variation in susceptibility of individual cultivars was also observed by Tb isolate.

Posted on:: March 9, 2019

Length:: 1 minute read, 96 words

Categories:: Extension

Tags:: Calibrachoa Black Rot Susceptibility

See Also:: Increased Flower Production of Calibrachoa x hybrida by the Soil Fungus Mortierella elongata; Evaluation of boxwood cultivars for resistance to boxwood blight, 2020.; Increased flower production!