林木種子の光発芽(第I報) : クロマツ, アカマツ種子の発芽の相遠

概要

論文の詳細を見る
1. Kuromatsu seeds had a larger sensitivity than Akamatsu seeds when exposed to 100-luxintensity light after 24 hours from soaking. (A 100-watt Matsuda bulb was used as a source of light). Having exposed the seeds to a 20-minute illumination of light, Kuromatsu seeds showed a good germinating per cent. (66.5% after 2 weeks from the soaking). However, under the same conditions, Akamatsu seeds were completly unsensitive to light; that is to say, its germination percentage was very low. (15.5% after 2 weeks).2. When the two kinds of seed were exposed to continuous light for 4 weeks, germinating speed was slower in Akamatsu seeds than in Kuromatsu seeds. (table 4).3. In case the seeds were handled in a low temperature (1℃ for 5 days), Kuromatsu seeds did not germinate without exposure to light, but Akamatsu seeds germinated comparatively (56% after 3 weeks) when treated only in low temperature.
一般社団法人日本森林学会の論文
1953-12-25