LAUSR

ABSTRACT This study was conducted to identify the local and wild pear species and select superior genotypes in some central regions of Iran. For this purpose, some morphological and pomological traits of selected genotypes from central regions of Iran were evaluated based on the DUS guideline for three years at five stages. Nine genotypes namely Hosseini (KB2), Hendi (KB3), Torsheh (KB4), local Barzouk (KB5), local late-ripening (SV1) and Armon (SV3), as well as wild species including Amroud (KB1), Kalanjir (SV2) and Khoj (SV4), were distinguished. The weight, length, and diameter of fruit and the width of the leaf showed a higher coefficient of variation than other traits. The range of the fruit length was recorded between 18 and 100 mm. The fruit weight varied between 25 and 325 g and SV2 and SV1 genotypes had the lowest and the highest values, respectively. Fruit TSS was between 7 and %13. KB1 genotype had the highest leaf length and the lowest leaf width. Based on cluster analysis, genotypes were divided into four separate groups. The three genotypes of KB5, SV1, and KB3 that were placed into one group are advisable as the promising genotypes because of their fruit weight, length, diameter and volume as well as optimum edible quality. These genotypes can be cultivated in orchards after examining regional adaptations and likely have genes related to different resistance that can be used for breeding programs.