栽培的梨树被普遍地认为是高度的自花不实。在建立梨园时,必须选择具有花粉量较多、花粉饱满率高、发芽力强,并能与主栽品种互相授粉等特性的品种作为授粉品种才能获得较高的产量。进行有性杂交育种时,除必须掌握父本品种的以上特性外,还需了解母本品种自花结实能力的性状,方能 Cultivated pear trees are generally considered to be highly self-inflicted. In the establishment of pear orchard, we must choose to have more pollen, pollen full rate, strong germination, and mutualism with the main varieties of varieties such as pollination varieties as pollen varieties in order to obtain higher yields. Sex sexual breeding, in addition to the need to master the above characteristics of paternal breeds, but also need to understand the characteristics of the female parental self-cultivation ability, before