老杉木和杉木优良无性系杂交试验的研究

Study on the Cross Experiment of the Old Tree and the Choiceness Clone in Chinese fir

报道老杉木和杉木优良无性系杂交试验的结果 . 1 0 a连续试验结果表明 :老杉木和杉木优良无性系互作为父母本的各杂交组合 ,在树高、胸径 (或地径 )、材积、冠幅、侧枝数、分枝角度等性状上均存在显著或极显著差异 ;从参试的 34个杂交组合中选出三 5 4×闽 1、王台×三 66等 9个组合表现较好 ,具有较高的遗传增益 .老杉木具有较高的利用价值 .利用老杉木作为杂交亲本时以杉木优良无性系为母本。

The paper reported the experiment results of the cross between the old tree and the choiceness clone in Chinese fir.The results,studied continuously for 10 years,showed that the characters on the tree height,diameter breast height(or diameter ground),timber volume,tree crown,bough amount,ramify angle,etc,all possess marked or extremely marked difference,using the old tree and the choiceness clone of Chinese fir as parents sample mutually.San 54×Min 1,Wangtai×San 66,etc. 9 grouping behaves preferable among 34 cross grouping of practice in trial production or experiment.The old tree of Chinese fir possess the upper value in use.The cross effect of used the choiceness clone as female parent and the old tree as male parent is preferred.