Optima
Origin:	Geiweilerhof 33-13-113 (Sylvaner x Riesling) x Müller-Thurgau
Source:	Federal Research Station Geiweilerhof, Germany

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Color:	White	Fruit Maturity:	Early
Clusters	Small, conic	Wood Maturity:	Early
Berry:	11-13 mm, round	Cold Hardiness:	Moderate - 3
Cluster Compactness:	Compact	Killing Temperature:	-12.1°F
Disease & Disorders:	Occasional botrytis	Relative Vigor:	Low on C/ 3309

Geneva	1985	0.4	76	55	0.9	--	--
	1986	0.9	95	85	1.7	34584	24.6
	1987	1.9	74	94	1.6	34571	19
	Mean	1.1	82	78	1.4	34577	21.8

Summary:	High vigor and late growth results in poor wood and bud maturation and related low winter hardiness. This limits potential for cold growing regions, but extreme botrytis susceptablility combined with rapid fruit deterioration is a greater limit to the variety's usefullness to New York grape growers. of the variety.
Recommendations:	Not recommended

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