杉木优良种源及其冻害苗造林效果分析

杉木优良种源及其冻害苗造林效果分析沈辛作，瞿巧文，洪昌端，张都海关键词杉木，优良种源，冻害通过两次全分布区和一次有限分布区杉木［ＣｕｎｎｉｎｇｈａｍｉａｌａｎｃｅｏｌａｔａＬａｍｂ．（Ｈｏｏｋ，）］种源试验，证实了种源间的树高、胸径、材积和结实等都存...

Analysis on Fine Provenances of Chinese Firand the Effect of Cultivation Using Freezing-injured Seedlings

A comparison experiment on the use of both normal and freezing-injured Chi-nese fir seedlings for cultivation was made. The result showed that the growth of the youngstand,which was cultivated with freezing-injured seedlings,was not as good as the youngstand,which was cultivated with normal ones in the first and second year,but they tended tobe normal in the third year. In the sixth year,both of their growth speeds were synchronous.There was no significant difference between their tree height and DBH;There was obvioushereditary superiority in seedlings of different fine provenances,especially the fine prove-nance of Guizhou Jinping,which possessed the characteristics of fast-growing high woodquality and wide adaptability.