摘要:
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。
Abstract:
To study the effects of pinching off growing-tip on growing of lemon grafted seedlings,grafted seedlings of one year on trifoliate were transplanted,and after three months,treated by natural growing,pinching growingtip off at stubble height 0,0.5and 1.0cm,respectively.The results showed that,comparing with natural growing and pinching off growing-tip at stubble height 0.0cm,the effect of pinching off growing-tip at stubble height 1.0 cm was the best on the number of second branches and the base width of grafted seedlings;the height of the grafted seedlings reached outplanting standards.The result also showed that by cutting off the growing-tip at any stubble height were all benefit to the grafted seedlings in increasing the quantity and regularity of branches sprouted and promoting the thickness of axial shoot,but the average length of branches was inhibited.
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