Study On Variety Characteristics Of Winegrape Granoir From Switzerland

Granoir is a new winegrape cultivar introduced from Switzerland. In contrast with V.vinifera Pinot Noir and Merlot, the studies were carried out on the morphological, agronomical characteristics oenological characteristics, hardiness and diseases resistance of Granoir. The result showed that:The color of shoot tip is light green, its margin is light red, and the prostrate hair is dense. The young leave have gloss and their color is yellow. The attitude of shoot is semi-erect, internode is red, and prostrate hairs on internodes is medium. The mature shoot is yellow bronze. The mature leave is little and the shape of blade is about circular. The profile of leave is flat, and lower surface of leaf has prostrate hair. The number of lobes are five or seven, upper leaf sinuses are deep, their shape is open, their shape of base is U-shaped, and the shape of teeth is both sides straight. The shape of base of petiole sinus is open, cylindric and V-shaped. The sex of flower is hermaphrodite.Clusters are medium, averaging 157.4 g, cylindrical, shouldered or winged, and medium or tight in berry density.; Berries are medium sized, averaging 1.37 g, round, Blackish-purple; berry bloom is medium. The juice yield is 64.6%, and the color of juice is light red brown. The Soluble solides content of must is 18.9%, reducing sugar is 192g / L, sugar is high and acidity is low, total acidity is 5.8g / L, and tannins is 1.561 g / L. The berry has two to four seeds. The wights of Granoir's cluster and berry are lighter than Pinot Noir and Merlot. The physi-chemical traits of fruit which related to oenological characteristics such as the juice yield, the content of reducing sugar and total acidity are better than Pinot Noir and Merlot.The rate of budbreak is 89.5%, the rate of fruiting shoot is 94.2%, and the rate of bunch/shoot is 2.8. It buds in the last 10-days of March, blossoms in the medium of May and veraision is in the first 10-days period of July. It ripened early (139 days from bud break to ripeness). Granoir buds earlier and the period from budbreak to ripen is shorter than Pinot Noir and Merlot.The Coniathyrium diplodiella resistance is stronger than Pinot noir and merlot, but thePlasmopara viticola resistance is on the contrary. It has higher hardiness resistance than Pinot noir and Merlot.It produces a ruby-red colored , fruity, smooth wine. In taste tests, wine quality of Granoir is better than Pinot Noir and Merlot.On the whole, the results of this experiment is similar with formers'.