不同树种和品种花期冻害调查柴全喜，秦君平，宋素智花期冻害是果树栽培生产中时常发生的一种自然灾害，我国南北各地均有发生，常给果树生产带来一定的损失．在北方，花期冻害主要是晚霜造成的．在果树的花蕾期和花期，如果出现霜冻天气．就会造成花器不同程度的冻害．由... Investigation of frostbite of different tree species and varieties in flowering period Chai Guanxi, Qin Junping, Song Suzhi The frost damage in florescence is a kind of natural disasters often occur in the cultivation of fruit trees, which occur in all parts of our country, often causing some losses to fruit trees. In the north, frost damage is mainly caused by night frost. In the bud of the fruit trees and flowering, if there is frost weather. It will cause flowers to varying degrees of frost damage. by...