Yona

MULTI PURPOSE VARIETY
Environmental friendly

  • YONA is a pale red skin variety producing very big tubers regular size.
  • The crop cycle of YONA is rather long but its yield is very high, superior to Désirée.
  • Excellent at storage, gifted of some key diseases resistances such as blight (very high resistance) which makes it an “environmental friendly “variety.
  • YONA is a variety Very well adapted to the so-called “traditional markets".

PLANT
FOLIAGE MATURITYLATE
EMERGENCEFAIRLY FAST
PLANT VIGOURHIGH
TUBER
SKIN COLOURRED
FLESH COLOURPALE YELLOW
TUBER SHAPELONG OVAL
SHAPE UNIFORMITYFAIRLY GOOD
EYE DEPTHFAIRLY SHALLOW
TUBER SIZEVERY LARGE
TUBER SETMODERATE
QUALITY
YIELDHIGH
DRY MATTER CONTENTFAIRLY HIGH (20-22%)
COOKING TYPEB-C
DISINTEGRATIONSLIGHT
AFTER COOKING DARKENINGVERY SLIGHT
FRYING COLOUR at harvestGOOD
STORAGE ABILITYHIGH
DISEASES
RESISTANCE TO FOLIAGE LATE BLIGHTHIGH
RESISTANCE TO TUBER LATE BLIGHTFAIRLY HIGH
RESISTANCE TO PITTED COMMON SCABFAIRLY LOW
RESISTANCE TO NETTED COMMON SCABFAIRLY LOW
RESISTANCE TO PVYHIGH
RESISTANCE TO PVYntnFAIRLY HIGH
RESISTANCE TO PCN G.rostochiensis (Ro1-4)FULL
RESISTANCE TO PCN G.pallida (Pa2-3)NULL
RESISTANCE TO WART pathovar 1FULL
RESISTANCE TO EARLY BLIGHTMODERATE
PHYSIOLOGY
DORMANCYFAIRLY LONG
RESISTANCE TO EXTERNAL DAMAGEMODERATE
RESISTANCE TO INTERNAL DAMAGEHIGH
RESISTANCE TO INTERNAL RUST SPOTFAIRLY HIGH
RESISTANCE TO DESPROUTINGMODERATE