杉木优良家系区域测定的研究  

Study on the Regional Test of Excellent Family of Chinese Fir

作　　者：洪昌端 陈天霞 张萍 王赵民[2] 何贵平[2] 吕本树[2] 

机构地区：[1]浙江省林业科学研究所 [2]中国林业科学研究院亚热带林业研究所

出　　处：《林业科学研究》1992年第3期298-303,共6页Forest Research

摘　　要：以全国10个省(区)14个杉木初级种子园的112个优良家系为试材,在浙江两个点进行区域性试验,5年的调查资料分析结果如下:①选出了41个优良家系,其选择率为39.4％,平均材积遗传增益达23.9％。②地点、种子园的效应及种子园×地点的互作效应都极显著,说明选择是可行的,但环境对杉木生长起很大的作用。③营建种子园增产效益明显,参试的14个种子园平均材积遗传增益达18.6％,并且,来自中心产区种子园大于一般产区。Chinese Fir is a fast growing wood species in China. A lot of excellent fast growing families were selected by selecting puls-trees, establishing seed orchards, progeny test etc. The regional test plantation was established with the selected excellent families. The analytical results of 5-year old plantation were showed as follows: (1) 41 excellent families were selected, and the average volume genetic gain was 23.9%, the selection rate was 39.4%. (2) The differences among sites, seed orchards and seed orchard x sites were all significant. The results showed that family selection would be efficient and the environment significantly affected the growth of Chinese Fir. (3) The benefit of establishing seed orchards was obvious. The average genetic gain of the 14 seed orchards tested was 18.6%. The gain from the central region was higher than that from the general region. The results was similar to that of provenance test.

关 键 词：杉木 优良家系 区域测定 遗传增益 

分 类 号：S791.270.4[农业科学—林木遗传育种]