南京林业大学学报(自然科学版) ›› 1980, Vol. 23 ›› Issue (04): 35-45.doi: 10.3969/j.jssn.1000-2006.1980.04.005

• 研究论文 • 上一篇    下一篇

杉木十一个产地的遗传变异

陈岳武;阮益初;陈世彬;刘大林;林启洋   

  1. 南京林产工业学院;福建省洋口林场;福建省洋口林场;福建省洋口林场;福建省洋口林场
  • 出版日期:1980-12-18 发布日期:1980-08-18

GENETIC VARIATIONS OF CHINESE FIR IN ELEVEN PROVENANCES

Chen Yuewu(Nanjing Technological College of Forest Products)Euan Yichu, Chen Shibin, Liu Dalin and Lin Qiyang   

  1. Yangkou Forest Farm, Fujian Province
  • Online:1980-12-18 Published:1980-08-18

摘要: <正>杉木优良产地的鉴定及其遗传优势的检验,是杉木树种遗传改良的重要组成部分。这项试验于1974年开始,在1979年结束。 遗传优势研究的初步结果证实,十一个产地四年生的表型差异,在1%(或5%)的平准上存在显著性。 在产地平准上,产地之间的变异通常有些合适的类型,产地与地点的适应性的生态群,有可能形成产地变迁模式的基础。根据这些试验的结果,在杉木自然分布区域之内,可区划成三个育种区:“中心”、“一般”和“边缘”。 从方差分析的结果看出,在中心区的亚群体比之在边缘区的亚群体,在遗传上具有更大的稳定性。杉木产地变迁模式的发展,对于当地(乡土)种是完全适合的。因此,用当地种的“优树”(加号树)建立种子园是适宜的。

Abstract: Identification of superior provenances of Chinese fir (Cunninghamia Lanceolata (Lamb) Hook) and verification of their genetic superiority are most important in the work of genetic improvement of this species. Our study on this subject started in 1974, and was completed in 1979.Preliminary results of our study on genetic superiority showed that phenotypic differences in five-year growth between 11 provenances attained significance at the one (or five) percent level.At the provenance level variations between provenances usually showed some coherent patterns based on provenance x site adaptation clines which can form the basis of provenance transfer model.According to the results of these experiments, in the natural regions of Chinese fir, these provenances can be divided into three breeding zones, i. e, "central", "genes ral" and "border".Results of analysis of variance showed that the genotypes from subpopulations in the center of the zone were more stable than those from subpopulations at the edges and that the development of the provenance transfer models of Chinese fir was entirely applicable to native species. Therefore, establishment of a seed orchard of "plus" trees from native species is considered advisable.