キハダのタネの発芽に対する冷湿処理の効果

概要

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Stratified seeds of Phellodendron amurense RUPR. were germinated at diurnal alternating temperatures of 20℃ for 16 hours and 30℃ for 8 hours (20〜30℃), and non-stratified seeds were germinated at a temperature range of 20〜30℃ and at a constant temperature of 25℃. Seeds were illuminated for eight hours every 24 hours for each germination condition. Seeds stratified for eight weeks germinated completely in two weeks at 20〜30℃. Seeds stratified for four weeks needed three weeks to attain the same germination percentage. Only 38% of non-stratified seeds germinated at 20〜30℃ during a period of 10 weeks, but only 3% germinated at the constant temperature of 25℃. These results demonstrated that seed of P. amurense requires stratification to germinate.
日本森林学会の論文
1985-03-25