Disease Key
CODE |
DISEASE |
PATHOGEN |
Psl |
Angular leaf spot |
Pseudomonas syringae pv. lachrymans |
Co |
Anthracnose |
Colletotrichum orbiculare |
CMV |
Cucumber mosaic |
Cucumber mosaic cucumovirus |
Pcu |
Downy mildew |
Pseudoperonospora cubensis |
PRSV |
Papaya ringspot |
Papaya ringspot potyvirus |
Sf |
Powdery mildew |
Sphaerotheca fuliginea |
Ccu |
Scab |
Cladosporium cucumerinum |
WMV |
Watermelon mosaic |
Watermelon mosaic potyvirus |
ZYMV |
Zucchini yellow mosaic |
Zucchini yellow mosaic potyvirus |
Resistance Terminology
HR = High resistance: plant varieties that highly restrict the growth and development of the specified pest or pathogen under normal pest or pathogen pressure when compared to susceptible varieties. These plant varieties may, however, exhibit some symptoms or damage under heavy pathogen or pest pressure.
IR = Intermediate resistance: plant varieties that restrict the growth and development of the specified pest or pathogen, but may exhibit a greater range of symptoms or damage compared to “highly resistant” varieties. Intermediately resistant plant varieties will still show less severe symptoms or damage than susceptible plant varieties when grown under similar environmental conditions and/or pathogen or pest pressure.
T = Tolerance: The ability of a plant variety to endure abiotic stress without serious consequences for growth, appearance and yield.