Euro-amer hybrids
This section presents hybrid forms of grapes that did not pass tests and selection for the elite, but were used as donors of the necessary qualities (frost resistance and winter hardiness, marketability and yield, high berry taste and appearance) for further selection according to the breeding task.
Terms and Definitions:
Аmerican - Vitis labruska (+ riparia, rupestris, cinerea, berlandieri, aestivalis, lincecumii)
Modern - (Vitis vinifera + Vitis labruska + Vitis amurensis)
I.HYBRIDS F1
Direction of selection: increasing the frost resistance of table grapes.
Direct and back crossings of the best samples (varieties and forms) of table grapes with donors of frost resistance, winter hardiness and disease resistance.
Modern: complex-resistant varieties and forms of grapes of euro-asian and euro-amur origin, used in the parent pair as a donor of marketability and yield, large fruit and high taste.
Аmerican: american grape varieties used as a donor of high frost and winter hardiness, resistance to diseases and pests.
1.1 Hybrids F1 = (modern x american):
Talisman x Jupiter (70-16), Talisman x Jupiter (xx7-16)
1.2 Hybrids F1 = (american x modern):
Russian Concord x Vostorg (47-08)
II. HYBRIDS F2
Direction of selection: increasing the frost resistance of previously obtained F1 table grape hybrids with increased frost resistance.
Repeated (saturating) direct and back crossings of the best previously obtained F1 hybrids (modern x american) with donors of frost resistance, winter hardiness and disease resistance (american).
F1 (modern x american): complex-resistant F1 hybrids of table grapes of euro-american origin, obtained earlier, used in the parent pair as donors of marketability and yield, large fruit and high taste, increased frost resistance.
Аmerican: american grape varieties used in breeding as donors of high frost resistance and winter hardiness, resistance to fungal diseases.
2.1 Hybrids F2 = (F1 (modern x american) x american):
2.2 Hybrids F2 = (american x F1 (modern x american)):
III. HYBRIDS F2
Direction of selection: increasing the frost resistance of previously obtained F1 table grape hybrids with increased frost resistance.
Repeated (saturating) direct and back crossings of the best previously obtained F1 hybrids (american x modern) with donors of frost resistance, winter hardiness and disease resistance (american).
F1 (american x modern): complex-resistant F1 hybrids of table grapes of euro-american origin, obtained earlier, used in the parent pair as donors of marketability and yield, large fruit and high taste, increased frost resistance.
Аmerican: american grape varieties used in breeding as donors of high frost resistance and winter hardiness, resistance to fungal diseases.
2.3 Hybrids F2 = (F1 (american x modern) x american):
2.4 Hybrids F2 = (american x F1 (american x modern)):
IV. HYBRIDS F2
Direction of selection: improving the commercial and taste qualities of previously obtained F1 table grape hybrids with increased frost resistance.
Repeated (saturating) direct and back crossings of the best previously obtained F1 hybrids (modern x american) with donors of large fruit and yield, high consumer qualities (modern).
F1 (modern x american): complex-resistant F1 hybrids of table grapes of euro-american origin with increased frost resistance, obtained earlier, used in the parent pair as a donor of marketability and yield, large-fruitedness and taste.
Modern: complex-resistant varieties and forms of grapes of euro-asian or euro-amur origin, used in the parent pair as a donor of marketability and yield, large fruit and high taste.
2.5 Hybrids F2 = (F1 (modern x american) x modern):
2.6 Hybrids F2 = (modern x F1 (modern x american)):
V. HYBRIDS F2
Direction of selection: improving the commercial and taste qualities of previously obtained F1 table grape hybrids with increased frost resistance.
Repeated (saturating) direct and back crossings of the best previously obtained F1 hybrids (american x modern) with donors of large fruit and productivity, high consumer qualities (modern).
F1 (american x modern): complex-resistant F1 hybrids of table grapes of euro-american origin with increased frost resistance, obtained earlier, used in the parent pair as a donor of marketability and yield, large fruit and high taste.
Modern: complex-resistant varieties and forms of grapes of euro-asian or euro-amur origin, used in the parent pair as a donor of marketability and yield, large fruit and high taste.
2.7 Hybrids F2 = (F1 (american x modern) x modern):
2.8 Hybrids F2 = (modern x F1 (american x modern)):
