瑞典农业科技大学Milan Simak博士从1974年开始,对贮藏种子的生理学等进行了深入的研究,发现贮藏时间愈长,种子细胞色素内一种高分子聚积物愈增加,细胞染色体被破坏的频率(MD C频率)也愈高。所涉及的最积极因子是温度、种子含水量和氧的含量。为进一步摸清贮藏种子染色体变化对幼苗生长特性的影响,用欧洲赤松和挪威云杉作试验材料,分别抽取来源不同的15份种 Dr. Milan Simak from the Swedish University of Agricultural Science and Technology has been conducting in-depth studies on the physiology of stored seeds since 1974 and found that the longer the storage time, the more the accumulation of a polymer in the seed cytochrome and the frequency at which the chromosomes are destroyed MD C frequency) is also higher. The most positive factors involved are temperature, seed moisture content and oxygen content. In order to further understand the effects of chromosome changes on the growth characteristics of seedlings, the tested materials of Pinus densiflora and Norway’s spruce were used to extract 15 species