叶面喷施硅硼锰肥对四季桂生长的影响
Effects of Leaf-surface Spraying of Silicon , Boron , Manganese Fertilizer on Growth of Four-season-fragrant-Olive
根据开花季节、花序类型和花色等不同,将88个桂花品种划归四季桂、银桂、金桂和丹桂四个品种群。
The 88 cultivars belong to 4 groups , based on different flowering seasons , inflorescence types and flower colors .