最近美国加利福尼亚州立大学发表了三个矮化桃新品种——溪谷宝石、溪谷太阳和溪谷红。这些品种是通过连续两代杂交,从大约35000个后代杂交单系中筛选出来的。其主要特点是枝条节间明显缩短,叶片密集丛生,树冠体积为一般乔化桃树的五分之一左右,因而可以进行矮化密植栽培。在盛 Recently, California State University published three new varieties of dwarf peach - valley gem, valley sun and valley red. These breeds were selected from about 35,000 offspring hybrids by crossing two generations in succession. Its main feature is markedly shorten the internode branches, dense clusters of crowns, the crown volume of about one-fifth of the general Qiaopen peach tree, which can be dwarfed close planting cultivation. In Sheng