Effects of pollination tree and pollen vitality on fruiting rate and seed-setting rate of Castanea mollissima

In this paper several methods,which are effecting on protruding-calyx fruit and fruit quality such as different position flower buds,flower,tree shape,pollination tree and different density PBO were studied to provide theoretical basis for improving the quality of Korla s Fragrant pear.

According to the encounter period of male and female flowers blossoms,a table were designed,and the table show the pollination species of each chestnut in evidence.

Based on the experience of coke of direct four corner tangential combustion boiler, the paper analysed the aerodynamics of direct four corner tangential combustion boiler, and discovered the factors of coke, such as air-power arrange, tangential deflexion and clash wall, ambi- deoxidize,etc.