J. Bio. Env. Sci.5(3), 202-209, September 2014
The fig (Ficus carica L.) is one of the oldest fruit trees cultivated in Iran. Kermanshah province is located in the west of Iran. It have sub climate that fig grow by farmers and have some genotypes as wild fig. Many specific fig genotypes are much appreciated locally and nationally. Identification of plant germplasms is very important for each country, so this study was focused on fig accessions in farmer orchard of Kermanshah province. Results revealed a large variability within the local fig accessions, so 23 different accessions were distinguished in this work. A total of 28 quantitative and qualitative fruit traits were determined according to the fig descriptors prepared by SPCRI (2008). All quantitative and qualitative fruit traits were not suitable for fig identification. Selecting the most informative variables is very important to facilitate the fig identification. In this study, variable were selected based on Pearson correlation and 11 quantitative and qualitative fruit traits from the initial 28 variables were used for cluster and principal component analysis (PCA). The first four components (PC1-PC4) explained more than 71.72 % of total variability. The first three components PCA was discriminated the sampled accessions in five groups and accounted for about 61.4% of the total variability among the fig accessions. Cluster analysis was performed using these 11 factors and accessions were divided into 5 main clusters. These results reveal that there are a lot of local fig accessions that are very important in genetic pool of fig in Iran.
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