What conditions need to pear pollination?

Pear belongs to the kind of gametophytic self incompatibility in fruit trees, most varieties of self pollination can not be strong, rely on distant hybridization for breeding, using suitable pollination tree and cultivated varieties to improve mutual pollination in the production of fruit, pear pollen mainly by the breeze and teach the bee larvae for the media. Used pear in the production process of artificial pollination technology to increase the fruit setting rate, ensure the yield and quality, the number of pollen number and pollen pollination quality directly affects the main varieties of fruit, yield and quality. The main varieties and pollination varieties should be pollinated with each other to ensure the yield and economic benefits.
Pear faced several in cultivation also need artificial pollination:
1 single cultivar;
2 main varieties and varieties of flowering period is not met, there is no flowering period of two reasons:
The main varieties and the varieties were not good, and the florescence was far apart;
Is the main cultivars and pollination varieties in case of abnormal weather, and pollination varieties varieties flowering and flowering is not the same, a relatively short time, resulting in early flowering varieties of pear flowering miss; such as the 2008 Zhongxiang County town, a farmer in Chai Hua pear planting pear 2 and Cuiguan pear two varieties, normal year Chinese pear 2 flowering and flowering period of Cuiguan met by conventional methods can meet the production of pollen pollination of two pear cultivars, but the abnormal weather in China in 2008, No. 2 before flowering pear bloom during continuous low temperature, high temperature, and the rain caused Chinese flowering pear 2 but this time is shortened, Cuiguan pear flowering period has just begun;
3 when flowering in a strong wind, sand, rain, dry and hot days flowering temperature, frost and other adverse weather effects, honey and other insects, will cause poor pollination, reduce the fruit setting rate, or cause flowers and not real.

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