コウゾの育種に関する研究(1) : アカソの雄花について

概要

論文の詳細を見る
"Akaso", one of the most useful varieties of Broussonetia Kazinoki SIEB., bears only female flowers and no male flower has ever been found, while "Aoso", another variety of that species, bears both male and female flowers.Authors found male-flowers of "Akaso", which mixed in the femal-inflorescences.1. The female-inflorescences in which 1〜3 male-flowers mixed, appeared on basal positions of annual branches.2. Morphological differences of male-flowers between "Akaso" and "Aoso", and "Aoso", were not recognized, but some of perianthes and stamens "Akaso" were imperfect.3. Mean value of pollen grain size of "Akaso" was 13.33μ. Though this value was somewhat smaller than that of "Aoso", there was no significant difference between them.4. Pollens of "Akaso" showed normal fertility, and crosses between "Akaso"×"Akaso" have yielded 9 berries and 111 seeds.
日本森林学会の論文
1954-10-25