Pages: 17-24

Abstract

Rubus is growing in forests regenerate mainly in a vegetative way; however, detailed studies have shown substantial variability in performance of Rubus individuals. The aim of this study was to evaluate the genetic diversity and genetic grouping of Rubus in Alborz mountains. First year, the regions of Rubus identified, the next year, by referring to pre-determined locations, readings taken. Using the "ward" cluster analysis method based on morphological characteristics were 0.8; genotypes divided in three main groups. The first three components consisted of more than 90% of the total variation. The first component was 0.75, the second component 0.96 and the third component 0.97 variance. The genotype distribution based on factor analysis showed that  R.antalicus, R.sanactus in the positive (+1) pc and genetic variants of R.caesius, R.hyrcanus, R.procerus were negative (+2) pc . The R.procerus were negative (-4) for the first factor at the zero-first distance, but in the second factor in the range of +3 to +4 and in the third factor at zero to+1 distance, which indicates that the genotype was weak factor. Based on the results, genotypes of de plot were in a group with more common characteristics, such as R.caesius, R.hyrcanus and R.procerus closed together. The most similarity observed among R.hyrcanus, R.caesius and R.sanactus species. The cluster analysis. R.caesius observed in different areas of the mountains and foothills of the Alborz slopes.