%0 Journal Article %T The Effects of Self-incompatibility Control Substances On Yield and Fruit Growth Traits of Pear Pyrus communis L. Cultivar ‘Williams’ %A SayyadAmin, Pegah %A Davarynejad, Gholam Hossein %A Abedi, Bhram %J Erwerbs-Obstbau %@ 0014-0309 %D 2021