The application of the cluster analysis for estimating selection values of F1 potato seedlings
2007
Prodanovic, S.,Poljoprivredni fakultet, Beograd - Zemun (Serbia) | Manojlovic, D.,SO Ivanjica, Ivanjica (Serbia). Odeljenje za poljoprivredu | Milosevic, D.,Agronomski fakultet, Cacak (Serbia) | Zivanovic, T.,Poljoprivredni fakultet, Beograd - Zemun (Serbia)
The possibilities of the application of the cluster analysis on selection of potato were analyzed in this paper. Experiments were conducted in a contemporary net house of the Potato Research Center at Guca, Serbia, during two years, 1999 and 2000. The population of 150 genotypes obtained after crosses between two Dutch varieties (Cosmos and Van Gogh) was used as a material for investigations. Values of six traits (leaf number per plant, total leaf area of plant, mean leaf area, chlorophyll content in leaves, yield index and tuber yield per plant) were measured in F1 seedlings. The hierachical cluster analysis was applied for the estimation of phenotypic diversity among seedlings. Seedlings were grouped in four clusters (A, B, C and D). The smallest cluster A contained two superior genotypes with the highest values of investigated traits. The tuber yield of clones from A-seedlings (507.07 g) overcame a mean tuber yield in the population of clones (144.27) about 3.5 times. The cluster analysis was proved to be a useful method for estimating selection values of F1 seedlings in early selection of potato.
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