Investigation of the important agronomic traits of internal and external varieties of Canola by analyzing to the factors

In order to categorize internal and external varieties of Canola according to the evaluated traits, an experimental in agronomic year of 2012 in Zanjan province on 24 internal and external genotypes with completely randomized block design was conducted. This experiment was repeated three times. In analyzing to the factors, four factors with high Eigen values were selected, where they have been making 74.839 percent of the main data variance. Based on the analyzing to the factors results, most of traits have a high similarity coefficient and the results show that the number of selected factors was appropriate to this aim and the selected factors have been able to justify and interpret the traits changes appropriately. The first factor have been able to explain about 21.813 percent of the main variables which the traits, number of days to full flowering, plant height and grain yield had large positive and negative coefficients. Therefore this factor can be named as yield factor. The second factor explained and justified about 21.629 percent of the variations of the main data. This factor, included number of days to heading and grain filling period and it was labeled as plants phonological factor. The third factor was able to explain 16.657 percent of the variations. Number of pods per plant and one thousands grain weight were the traits affecting this factor and it was named as grain yield affecting factor. Finally the fourth factor explained 14.74 percent of the variations. Number of days to ripening and number of grains per pod were affected this factor. All in all these four factors set one special factor in front of the other evaluated factors.