The biological characteristics of flowering and fruit quality of the major cultivars in apple in Dahe Orchard,Xishan District,Kunming City,were investigated and researched.

• 对昆明市西山区大河果园主要苹果品种的开花生物学与果实品质进行调查研究；结果表明:花芽能顺利完成分化；乔纳金花芽分化要比红富士早；红富士的花芽坏死率为6.；3%25;