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对油松第一、二批种源试验的五个指标进行了多点方差分析,结果表明,种源与立地交互作用均极显著。其中七年生保存率种源与立地交互作用最强。利用Finlay和Wilkinson提出的方法,对油松七个生态型种源的适应性及稳定性进行了研究。结果表明,东部型和中部型适应性强,在各地生长水平也较高;东北型和西北型仅适应干旱寒冷地区;中西型、西南型和南部型适应性也差,仅能适应比较温暖多雨的地区。当地种源一般表现较好。
The results showed that the interaction between provenances and sites was extremely significant. Seven-year survival rate of the provenances and site interaction strongest. Using the methods proposed by Finlay and Wilkinson, the adaptability and stability of seven ecotype provenances in Pinus tabulaeformis were studied. The results show that the eastern and middle types are highly adaptable and grow well everywhere; the northeastern and northwestern types are only suitable for the arid and cold regions; the middle and western, southwest and southern types are also poorly adaptable and can only adapt to the warmer and rainier Area. Local provenances generally perform better.