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1980年在枯死现象严重的平潭防护林场木麻黄采伐迹地营造木麻黄化树半同胞子代测定林,通过17年的试验,筛选出抗逆适应性强、保存率高、生长优良的家系夏26、夏8、夏4、夏23、夏3、夏25、龙5共7个,17年生保存率均在80%以上;平均保存率85.2%,比对照高58.6%,均与对照达极显著水平。其中夏26比对照高72.2%。这些家系生长也较好,平均胸径20.73cm,比对照大20.2%;平均树高17.09m,比对照高11.3%。均表现出较强的抗逆适应性。
In 1980, the semi-sibling seedlings of Casuarina equisetifolia were planted in the logging plantation of Casuarina equisetifolia in the Pingtan Shelterbelt, where the phenomenon of death was serious. After 17 years of testing, the families with strong adaptability to anti-retrogradation, high preservation rate and good growth were selected 26, summer 8, summer 4, summer 23, summer 3, summer 25, dragon 5 a total of seven, 17-year survival rates were above 80%; average preservation rate of 85.2%, 58.6% higher than the control, both With the control reached a significant level. Among them, summer 26 was 72.2% higher than the control. These families also grew well with an average DBH of 20.73 cm, which was 20.2% larger than that of the control. The average tree height was 17.09 m, 11.3% higher than that of the control. All showed strong resistance to adaptation.