SAKZIN017
ActiveZinnia x marylandica D. M. Spooner et al.
Sakata Seed Corporation (SCC)
Diseases
Leaf spots of Zinnia x marylandica D. M. Spooner et al.
Zinnia x marylandica D. M. Spooner et al.
The interspecific hybrid Zinnia x marylandica possesses complex tolerance to the pathogens of bacterial, Alternaria, and Cercospora leaf spots, showing symptoms of infection only under extremely high disease pressure.
In the reference 8 varieties crop Zinnia x marylandica D. M. Spooner et al., where this is mentioned in the description.
The main leaf spot pathogens for this hybrid include the bacterium Xanthomonas campestris pv. zinniae, as well as the fungal pathogens Alternaria zinniae and Cercospora zinniae. Bacterial infection manifests as angular brown spots with a yellow halo, while Alternaria blight is characterized by reddish-brown spots with concentric rings.
The high resistance of the hybrid is a consequence of its amphidiploid nature rather than the introgression of specific R-type genes. In breeding lines, this tolerance is considered a stable species trait that provides protection under moderate infection pressure, in contrast to the susceptibility of other Zinnia species.
General information about the subject — on the page Leaf spot diseases.
Varieties of Zinnia x marylandica D. M. Spooner et al. mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
SAKZIN021
ActiveZinnia x marylandica D. M. Spooner et al.
Sakata Seed Corporation
SAKZIN022
ActiveZinnia x marylandica D. M. Spooner et al.
SHINJI MINEMURA
SAKZIN011
ActiveZinnia x marylandica D. M. Spooner et al.
Sakata Seed Corporation (SCC)
SAKZIN015
ActiveZinnia x marylandica D. M. Spooner et al.
Sakata Seed Corporation (SCC)
SAKZIN018
ActiveZinnia x marylandica D. M. Spooner et al.
Sakata Seed Corporation (SCC)