スギの3世代材料を用いたジベレリンによる着花性の遺伝

概要

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To determine the inheritance of flowering characteristics of sugi (Cryptomeria japonica D. DON), four-year-old rooted cuttings (parents and F_1) and seedlings (F_2) from the parent trees of two cultivars of sugi, Kumotooshi and Okinoyama-sugi were examined. A concentration of 100ppm of gibberellin solution was sprayed on them twice, 22 July and 1 August, 1985. In November, 1985,the following six variables, which were graded at five levels, were measured by eye : 1) number of male flower, 2) number of female flower, 3) pattern of male flower distribution in crowns, 4) pattern of female flower distribution in crowns, 5) shape of crown, and 6) height of tree. Then, six variables and four variables (excluding shape of crown and height of tree) were analyzed by a principal component analysis. In the histogram of component scores, bimodal features emphasized non-normality of this distribution. The results indicated that inheritance of both male and female flowering were not controlled by polygenes, but were controlled by a few genes, but were controlled by a few genes.
日本森林学会の論文
1987-02-25