Bereznai, L.

Bereznai, Z.

Olah, L.

English

JKI Open Journal Systems (Julius Kühn-Institut)

Clonal selection 531 M liELLER·DOMBOIS, D.; ELLENBERG, H .; 1974: Airns and Methods ofVegetation Ecology, 84-90. Ed John Wiley & Sons, N.Y. MURJSIER, R.; RYSER, J. P.; AERXY, J.; 1982: Fumure potassique et acidite des mouts. Rev. Suisse Viticult Arboricult. Honicult.14, 33·36. OUGH, C. S.; LIDER, L. A.; CooK, J. A ; 1968: Rootstock-scion interactions concerning wine making. I. Juice composition changes and effects on fermemation rate with St. George and 99-R rootstocks at two nitrogen fenilizer Ievels. Amer. J. Enol. Viticult. 19, 213-227 . RIBIOREAU·GAYON, 1.; PE YN AUD, E.; SUDRAt :o, P.; RIBEREAt'-GAYON, P.; 1972: Seiences et Techniques du Vin. Ed. Dunod, Paris. SALGt:ES. M.: 1977: La pratique de Ia degustation du vin et son interpretation statistique. Progr. Agric. Vitic. 94, 78-87,112-123. 137-139. SCIEXZA, A.; C.-\SASSA, M. T.; VtSAI, C.; Co:-ocA, E.; 1984: II controllogenetico della nutrizione potassica nella vite. Riv. Viticolt. Enol. 37,682-691. SMART, R. E.; 1982: Vine manipulation to improve wine grape qualiry. Proc. Symp. Grape Wine Cent. Davis, Ca, USA, 362-375. ·· -- ; 1985: Principles of grapevine canopy microclirnate manipulation with implications for yield and quality. A review. Amer. J. Enol. Viticult. 36. 230-239. -- -- ; ROBIMO!', J. B.; D u E, G. R.; BRJEN, C. J.; 1985: Canopy microclimate modiflcation for the cultivar Shiraz. I. Definition of canopy microclimate. Vitis 24, 17- 31. SMITH, R. 1.; KLIEWER, W. M.; 1984: Estirnation of Thompson Seedless grapevine leaf area. Amer. J. Enol. Viticult. 35, 16-22. SUDRAVD, P.; 1958: Interpretation des courbes d'absorption des vins rouges. Ann. Techn. Agric. 7, 203-208. VIDAL, M.; Bt.ot:IN, 1.; 1978: Dosage colorirnetrique rapide de l'acide tanrique dans les moüts et les vins. Rev. Fr. Oenol 16, 39-46. WOLPERT, J. A.; HOWELL, G. S.; MANSFIELD, T. K.; 1983: Sampling Vidal Blanc grapes. I. Effect of training systems. pruning severiry, shoot exposure, shoot origin, and cluster thinning on duster weight and fruit qualit)•. Amer. J. Enol. Viticult. 34, 72-76. Clonal selection of Cabernet L. BEREZNAI, Z. BEREZ NAI and L. ÜLAH Egervin Research Centre, P.O.Box 83, H-3301 Eger, Hungary A b s t r a c t : As a consequence of ecological conditions. in Hungary the grape varieties Cabemet franc and Cabemet Sauvignon became deteti orated and were supplanted by other varieties in production. This was the reason for staning clonal selection ofthese varieties in Eger in 1962 by the method offour-stage clone selection ofM. J\EMETH . As a result ofthis selection. we produced clones ofthe two varieties on the basis of20 years of Observation. The clones of Cabemet franc E. 11 and Cabemet Sauvignon E. 153 yield 30-40% more than the base variety and - depending on the year - they produce wine of excellent or good quality. 

Clonal selection of Cabernet

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Clonal selection of Cabernet

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