V. ROYTCHEV
Agricultural University, BG - 4000 Plovdiv, Bulgaria
ROYTCHEV, V., 2007. Application of cluster analysis and principal component analysis in the development of table seeded and seedless vine cultivars (Vitis vinifera L.). Bulg. J. Agric. Sci., 13: 409-421
The possibilities for application of cluster analysis and principal component analysis in the investigation of F1 progeny of a cross between a seeded and seedless vine cultivar have been studied. It has been established that their combined application allows obtaining more profound ampelographic information on the character and significance of each trait in the grouping of genotypes. The selection of elite hybrid forms should be carried out according to those traits, which explain to the greatest extent variation in the first and second principal component. The division of seedlings into two groups - seeded and seedless, increases the efficiency of both analyses in the development of new table vine cultivars possessing valuable economic characteristics. Promising elite hybrid forms which should be used in future hybrid combinations, have been selected from the population of seeded and seedless seedlings in accordance with the criteria of the applied methods. Other hybrid forms deserving special attention have been pointed out as well.