Rootstock breeding

The cultivar Bomer is the living proof that complete phylloxera resistance is achievable in a commercial rootstock. Therefore, the breeding institute at Geisenhdm started in 1993 with a rootstock breeding prograname on the basis of the complete phylloxera resistance mechanism of V. cinerea Arnold. Meanwhile, the first of these hybrids have d onstrated that they are of commercial value with some giving superior results on some trial sites. Time will tell if these new rootstock hybrids will succeed in the wine industry. 

Rootstock breeding commenced at Oppenheim in 1912, when Director Fuhr of the School of Viticulture Oppenheim received hybrids from the collection of the Hungarian breeder Sigmund Teleki. Out of this population over the next decades, the rootstocks S04 and Binova, a hermaphrodite sport of S04, were developed. Maintenance breeding of Kober 5BB is another objective at Oppenheim. At Neustadt, another Rural Service Centre of the State, maintenance breeding is conducted for the rootstocks Kober 125AA and two V. cinerea crosses originating from Carl Bdmer s work, Cina and Rid. 

Bakonyi, K., Bakonyi, L., Kocsis, L., 1996a. Alanynemesftes magyarorszagon. (Rootstock breeding in Hungary). Kerteszet es Szoleszet 45 (47), 19. 

Hajdu, E., Bakonyi, K., 2006. A szoloalany-nemesites es eredmenyei hazankban. (Results of rootstock breeding in our country). Kertgazdasag 38 (3), 25-32. 

Grapevine rootstock breeding for toierance to water and nutritionai stresses through the deveiopment of physioiogicai and moiecuiar markers... 

Rootstock breeding and selection in the Central European region... 

In the territory of the Czech Repnblic, the origins of rootstock breeding date back to the end of the nineteenth centnry. F. Schwarzmann, the director of the chatean in Bzenec in Moravia was an important personality in the field of breeding and selection of rootstocks in the Czech Repnblic. In 1891, Schwarzmann selected in Bzenec a rootstock cultivar that was named Schwarzmann in his honour. Schwarzmann... 

Bbmer shows a high degree of root resistance to all heretofore tested phylloxera races (Schmid et al., 2003). Zhang et al. (2009) mentioned that Bomer disposed of a gene of resistance to phylloxera, and this resistance was successfully transferred also to the progeny. Bomer seems to be an important source of phylloxera resistance in breeding. This fact is also confirmed in rootstock breeding in the Czech Republic. 

Schmid, J., Manty, R, Riihl, E.H., 2003. Utilizing the complete phylloxera resistance of Vitis cinerea Arnold in rootstock breeding. Acta Hortic. 603, 393-400. 

V. X doaniana Mnnson ex Viala (pro sp.) [V. acerifolia x V. mustangensis] is found in Oklahoma and Texas and its nse has been limited to rootstock breeding (Loomis andLider, 1971). 

Vitis shuttleworthii House is native only to Florida. It was used in breeding the cul-livar Stover. This species has good disease (especially PD) and insect resistance, vine vigor, berry size, small seeds, wide climatic and soil adaptation, and high yield potential. It also has tough pulp, acidic juice, and rather small clusters. V shuttleworthii has been used in rootstock breeding in Horida as well (Fennell, 1938 Mortensen and Stover, 1990 Rogers and Mortensen, 1979). 

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