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秃杉种源苗期试验研究表明,云南、贵州、湖北等8~12个秃杉种源,70个单株子代,种源群体间性状存在明显的遗传差异。性状变异与产地经向相关强於纬向相关的趋势。地理变异倾向於不连续遗传变异类型,以经向为主的渐变。经度偏东的贵州种源种子千粒重是湖北种源的1.62倍,种源苗木生长快,生物量高,冠幅宽而长,根系发达。据对秃杉不同种源苗期生长发育,生物量测定10个表型性状进行聚类分析,参照分布区生态特点,将秃杉分布区种源划分为3个种源区,2个亚区。变异、区划与选择为秃杉遗传改良提供了依据
Seedlings of Taiwania flousiana provenance study showed that Yunnan, Guizhou, Hubei and other 8 to 12 Taiwania flousiana seed sources, 70 single offspring, the provenance between populations there are significant genetic differences. The correlation between trait variation and the meridional direction of origin is stronger than that of the latitudinal direction. Geographic variation tends to be a discontinuous type of genetic variation, with a predominantly meridional gradient. Longitude east of Guizhou provenance seed thousand grain weight is 1.62 times of provenance in Hubei, provenance seedlings grow fast, high biomass, wide and long crown, root system developed. According to the cluster analysis of 10 phenotypic traits of seedlings of different provenances of Taiwania flousiana, according to the ecological characteristics of the distribution area, the provenances of Taiwania flousiana were divided into 3 provenance areas, 2 sub-areas . Variation, zoning and selection provide the basis for genetic improvement of Taiwania flousiana