Alpha is an American grape variety , hybrid ( Vitis labrusca × V.riparia ).
| Alpha | |
|---|---|
| Color | black1 |
Key Features
Vine growth power is strong. The leaves are large, three-lobed. The flower is bisexual. Resistant to fungal diseases, but prone to chlorosis. The yield of this grape variety is high (150-180 kg / ha.). Grape variety of medium ripening period. The period from the beginning of budding to full ripening of berries 135-145 days with the sum of active temperatures 2400 ° C. The flower is bisexual. The berries are black, consumed fresh; used in winemaking . The taste is mediocre, sweet and sour. Sugar content of 15-18%, acidity of 10-13 g / l. There are two to three seeds in a berry. The mass of the average bunch is about 120 g. Due to its high frost resistance it can serve as a good stock; it is successfully used for landscaping.
Distributed in the CIS in the northern regions of Ukraine, in Russia it is found in the Far East (Zoned in the Primorsky Territory). In 1962, the Alpha variety was zoned in the southern garden zone of the BSSR. It grows freely in the suburbs and southern Siberia, a non-covering variety. Frost resistance: -30-35 ° C.