云杉种间和种源间苗期性状的遗传变异研究

Study on character variation among species and provenances during seedling stage of spruce

为了解云杉生长性状的遗传变异规律 ,通过云杉种、种源选择试验找出在我国生长表现优良的云杉种、种源 ,对引进的欧洲云杉 8个种源、加拿大的白云杉 10个种源、黑云杉 10个种源、英国西加云杉 1个种源和国内川西云杉 2个种源 4 4个家系、青海云杉 118个家系进行了不同种、种源的苗期生长性状遗传变异研究。结果表明 :云杉不同种、种源间苗期的苗高生长差异极显著。 6个种的 1年生云杉以苗高进行排序 :西加云杉 >欧洲云杉 >白云杉 >黑云杉 >青海云杉 >川西云杉。欧洲云杉、白云杉、黑云杉各个种的不同种源间有很大的变异及选择潜力。因此在进行云杉引种时 ,应选择不同的种、种源 。

In order to know the variable regularity of different species and provenance of spruce,a series of experiments in 8 provenances of Picea abies,10 provenances of Picea glauca,10 provenances of Picea ariana,1 provenance of Picea sitchensi, 44 families of Picea balfouriana,118 families of Picea crassifolia were carried out. Growth characters of 1 year-old seedling and their height were analyzed with the data collected from experimental plots. The results showed that there exsited significant differences among species and provenance in height growth.The order of height was Picea sitchensis, Picea abies, Picea glauca, Picea arian, Picea crassifolia, Picea balfouriana.Overseas spruces were superior to domestic ones in height growth.