PR63A90

Maturity group (RM): 39.
Yield potential: 8.
Oil content: 7.
Standing ability: 8.
Drought resistance: 8.
Vegetation period — 113-122 days.
Very strong plants of an average height (150_165 сm).
Head diameter — 17-18 сm.
Weight of 1,000 seeds — 55-65 g.

Is distinguished by stable yield during planting in different soil and climatic zones.
In accordance with the demonstration test, the yield in steppe amounted to 24.3 c/hа, forest-steppe — 22.9 c/hа (2004).
The hybrid is drought resistant.

Resistant to big bud, including А-Е strains.
Sufficiently resistant to sclerotinia and Phomopsis blight.

Optimum density during harvesting:

for sufficient moisture zone — 60-65 thousand of plants per 1 ha,
for insufficient moisture zone — 50-55 thousand of plants per 1 ha.

Registered in 2001 for the forest-steppe zone.