Agro-biological characteristics of three Sauvignon blanc (Vitisvinifera L.) clones, growing in R. Macedonia

In the period of 2007/2009, 3 clones of the Sauvignon blanc variety (242,316 and 297) grown in the wine area in Skopje, Republic of Macedonia, were studied for their agro-biological characteristics. Certified seedling was introduced in 1999/2000 from France, and the same was planted in the collectable plantings of the Agricultural Institute. The purpose was comparative examination of the fertility of the buds and realized crop from the 3clones of Sauvignon blanc grown in same agro-ecological conditions and application of optimal agro-technical and ampelo-technical measures. Different values have been procured mostly because of the variety specifications and the ecological conditions in the years of examination. In the years of examination, the percentage of grown buds among all clones is very stable and with insignificant varies. The coefficient of variation is from 1.83 (clone 316) to 7.96 (clone 242). The average number of bunches per native tendril (absolute coefficient) is with significant variation among the clones 242 (17.17) and 297 (20.66). With highest yield of 4.870 kg/vine, the average for the period of examination is realized among the 297 clone, and also with greatest variation (13.21) in the years of examination. Key words: Sauvignon blanc clones, fertility of buds, yield, sugar, total acid