油松不同生态型的适应性的研究

A PRELIMINARY STUDY ON THE ADAPTABILITY OF PROVENANCES OF PINUS TABULAEFORMIS

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。

According to the variance analysis, on the basis of five trails performance from the first and second provenance test of Pinus ta-bulaeformis, the result showed that all the interaction of provenance-environment are highly significant. The adaptability and stablity of the provenances in the seven ecotypes of Pinus tabulaeformis have been studied with the methods of Finlay and wilkinson, the result showed that the east-ecotype and centre-ecotype had a strong adaptability and grew well-in all test places. The others' adaptability is weak. The tendency is thatthe provinances grow better in local places.