Merlot
Origin: Bordeaux, France
Source: Federal Research Station Geiweilerhof, West Germany

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Color: Blue/black Fruit Maturity: Mid-late season
Clusters Medium, cylindrical, shouldered Wood Maturity: Moderately late
Berry: 12-17 mm, round Cold Hardiness: Tender - 2
Cluster Compactness: Well filled Killing Temperature: -9.4°
Disease & Disorders: Botrytis, crown gall Relative Vigor: Moderate on C.3309

Location Year Wt. (lb) (%) (grams) (Tons/Acre) Date (%)
Fredonia
1985 1.4 69 117 2.1 34629 21.7
1986 2.5 56 79 2 34616 20.4
1987 2.9 54 112 3.1 34599 21
Mean 2.3 60 103 2.4 34605 21
Geneva
1985 0.7 78 108 2.4 34624 21
1986 2.1 84 136 4.5 34620 --
1987 3.1 67 98 3.3 34592 18
Mean 2 76 114 3.4 34612 19.5
Hudson
Valley 1985 0.8 51 -- 3.6 34600 17.3
1986 0.6 63 83 0.9 34593 20.3
Mean 0.7 57 83 2.3 34596 18.8
Long Isle
1985 1.9 -- 76 1.2 34611 17.4
1986 3.8 56 117 2.9 34614 22.8
1987 4.9 72 83 2.9 34614 Rot
Mean 3.5 43 92 2.3 34613 20.1

Summary: Botrytis infections are not uncommon, but not a major problem in most years. The trunks are winter tender and subject to crown gall attack. Perhaps a more restirictive rootstock would help attain wood maturation. Because it ripens before the o
Recommendations: Can only be recommended for superior sites.

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