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为探明不同摘心处理对柠檬苗生长的影响,以移栽1年生枳砧嫁接的柠檬苗为研究对象,嫁接3个月后分别进行自然生长(CK),摘心留桩0.0cm,摘心留桩0.5cm,摘心留桩1.0cm处理。试验结果表明:摘心留桩1.0cm时,处理效果最佳,其抽梢数量、苗木基部粗度均优于摘心留桩0.0cm及自然生长(CK),其苗高度也达到了优质苗木出圃移栽的规格。研究结果也显示,与自然生长(CK)相比,不同程度的摘心留桩均增加了侧芽萌发的数量、主干茎粗及侧枝生长的整齐度,但侧枝平均长度有所降低。
In order to study the effect of different topping treatments on the growth of lemongrass seedlings, the lemon seedlings grafted with one-year-old Poncirus trifoliata were taken as the research objects. Three months after grafting, the natural growth (CK) 0.5cm, topping pin pile 1.0cm treatment. The results showed that the best effect was obtained when the plug was pickled 1.0cm, the number of shoots and the thickness of seedling base were better than the 0.0cm and natural growth (CK) of the pinching pile, and the height of the seedling reached the standard of nursery stock Planting specifications. The results also showed that, compared with natural growth (CK), all kinds of pinching increased the number of lateral buds, the diameter of main stem and the uniformity of collateral growth, but the average length of collateral branches decreased.