実践研究
シダ植物の有性生殖の教材化I
―固定した材料を用いた受精現象の観察―
1994 年 34 巻 4 号 p. 307-313
詳細
1994 年 34 巻 4 号 p. 307-313
Fertilization of fern was examined as a school subject matter. Three methods were used to allow spores of six fern species to be sown and to bring out prothallia. Prothallia, antheridia, archegonia, and sperms were comparatively observed in order to screen the experimental materials of fertilization. The process of fertilization was also examined using the fixed materials.
The following results were obtained:
l) Pteridium aquilinum (WARABI) and Struthiopteris niponica (SHISHIGASHIRA) were suitable for experimental materials of fertilization.
2) Various stages of fertilization could be observed using fixed materials with Carnoy’s fluid.
3) Process of fertilization could be recoganized at the cell level.
