Study of Quantitative and Qualitative Traits of Five Native and Foreign Pear Cultivars in Khorasan Razavi Province

Pear (Pyrus communis L.) is the second (after apple) important fruit in the world. There are a lot of local cultivars in our country but there isn’t any exact history of how to select and access to these varieties. This research carried out to evaluate the physicochemical and morphological characteristics in order to identify some native and foreign pear cultivars cultivated in Khorasan Razavi province. Native varieties: Sebri (Asian pear) and Domkajkaraj, also foreign cultivars Williams, Spadona and Koshia were studied at Esteghlal orchard in Khorasan Razavi province during 2 years (2011 and 2012) and 61 different traits related to the tree, leaves, blossoms and physicochemical properties of fruit were evaluated in a completely randomized in the design with 10 replicates. The results showed that Sebri was very late matured and the others were middle. Koshia had a maximum Brix° value (16.35 percent) among cultivars. Between leaf length/ leaf width fruit diameter (0.78±0.07), leaf width ratio (0.77±0.07), fruit weight, width blossom (0.78±0.7), fruit weight, fruit diameter (0.98±0.02), fruit length to diameter ratio with TSS (0.80±0.06) had positive and significant correlation of 1 percent probability level