Rosanna

MULTI PURPOSE VARIETY

ROSANNA is a bright red skin variety producing very regular tubers in size.
Very early but also very productive, ROSANNA is a water saving variety when grown in warmer areas such like the Mediterranean conditions.
Where planted in second season, ROSANNA performs very well both in growth speed and yield.

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PLANT

FOLIAGE MATURITY	EARLY
EMERGENCE	FAIRLY FAST
PLANT VIGOUR	FAIRLY HIGH

TUBER

SKIN COLOUR	RED
FLESH COLOUR	PALE YELLOW
TUBER SHAPE	LONG
SHAPE UNIFORMITY	GOOD
EYE DEPTH	SHALLOW
TUBER SIZE	LARGE
TUBER SET	MODERATE

QUALITY

YIELD	HIGH
DRY MATTER CONTENT	FAIRLY LOW (17-18%)
COOKING TYPE	B
DISINTEGRATION	VERY SLIGHT
AFTER COOKING DARKENING	VERY SLIGHT
FRYING COLOUR at harvest	FAIRLY GOOD
STORAGE ABILITY	FAIRLY HIGH

DISEASES

RESISTANCE TO FOLIAGE LATE BLIGHT	FAIRLY LOW
RESISTANCE TO TUBER LATE BLIGHT	FAIRLY LOW
RESISTANCE TO PITTED COMMON SCAB	HIGH
RESISTANCE TO NETTED COMMON SCAB	LOW
RESISTANCE TO PVY	LOW
RESISTANCE TO PVYntn	EXCEPTIONAL
RESISTANCE TO PCN G.rostochiensis (Ro1-4)	FULL
RESISTANCE TO PCN G.pallida (Pa2-3)	NULL
RESISTANCE TO WART pathovar 1	FULL

PHYSIOLOGY

DORMANCY	SHORT
RESISTANCE TO EXTERNAL DAMAGE	MODERATE
RESISTANCE TO INTERNAL DAMAGE	HIGH
RESISTANCE TO INTERNAL RUST SPOT	FAIRLY LOW
RESISTANCE TO DESPROUTING	FAIRLY LOW