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从美国引进6个不同种源地的北美香柏种子,选用先进的穴盘育苗技术,在上海地区进行种源、播种时期和覆盖材料等对比试验。试验结果表明:不同种源地的种子在发芽率方面,出苗始期的发芽率差异不显著,但后期出苗率有显著差异;不同种源幼苗生长高度在出苗始期等各阶段的差异均不显著。种子、种苗受覆盖材料和温度的影响较大。定植后高生长缓慢,有待进一步观察。
The introduction of six North American cedar seeds from different provenances in the United States selected advanced seedling trapping techniques to conduct comparative experiments in provenance, seeding and covering materials in Shanghai. The results showed that there was no significant difference in the germination rate of seed germination in different provenances, but there was significant difference in seedling emergence rate at the later stage. There was no significant difference in seedling growth in different provenances at the beginning of emergence. Seeds, seedlings covered by the material and temperature have a greater impact. High growth after planting slow, pending further observation.