Photoresponses of Matteuccia struthiopteris (L. ) Todaro

The germination of Malleucciu struthiopteris spores is lightdependent. All wavelengths between 400 and 750 nm promote germination,but two major peaks of promotion occur at 550 and 625 nm, anda minor peak of 450nm. A small number of spores germinato whom incubated in the darkwith IAA, kinetin, or gibberollie acid, but they do not undergofurther development. In red or white light no promotion of germinationover the control level is induced by the growth substances,only an inhibition at the higher concentrations.