Seasonal Changes of Chemical Components in the Cones from Various Clones of Abies sachalinensis in a Seed Orchard and Germination Test of the Mature Seeds
Seasonal Changes of Chemical Components in the Cones from Various Clones of Abies sachalinensis in a Seed Orchard and Germination Test of the Mature Seeds
复制标题
种园冷杉不同无性系球果化学成分的季节变化及成熟种子的发芽试验
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
H. Kudoh
中科院分区：
文献类型：
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作者：
M. Ujiie;T. Katayose;H. Kudoh
本文于5 ~ 9月每月采集8个沙林冷杉（Abies sachalinensis） 6个无性系的球果，利用球果分离的种子和鳞片对7月以后采集的球果进行了干重及球果中各种化学成分的变化追踪。用化学方法研究了11个无性系（36株）成熟球果的变异，并分析了种子发芽率与每粒种子中化学成分含量的关系。果粒重量平均从5月的160毫克增加到9月的12300毫克。尽管球果中氮、总矿物质、磷、钾的含量在生长过程中迅速下降，但这些物质在球果中的吸收量却显著增加。与镁相比，钙的含量出乎意料地低。成熟种子的平均发芽率为29%，同一无性系种子的发芽率、重量和化学成分比例相近。发芽率与每粒种子中除钙以外的化学成分（尤其是钾、氮和矿物质）的质量和数量呈高度正相关，相关系数值较高。
Cones were collected from eight specimens of Abies sachalinensis including six clones monthly from May to September, and the changes of dry cone weight and various chemical components in the cones were traced, using seed and scale separated from cone for the cones collected after July. Variations of mature cones from the 36 trees including eleven clones were also investigated chemically, and the relation between germination rate and each quantity of chemical components per grain of seed was examined. Cone weight inceased from about 160 mg in May to 12,300 mg in September on the average. Although the percentages of nitrogen, total minerals, phosphorus, and potassium in the cones fell rapidly in the course of their growth, these substances taken up in the cones increased remarkably. Calcium content was unexpectedly low, compared with that of magnesium. Average germination rate of mature seeds was 29%, and seeds from the same clone showed similar germination rate as well as weight and the proportions of chemical components. The germination rate had a highly positive relation to the weight and the quantities of chemical components per grain of seed except calcium-especially potassium, nitrogen, and minerals-as indicated by the high values of the coefficients of correlation.