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THE EFFECT OF DIFFERENT LIGHT CONDITIONS AND SUCROSE ON THE GROWTH AND DEVELOPMENT OF THE GAMETOPHYTE OF THE FERN, ONOCLEA SENSIBILIS
Author(s) -
Miller John H.,
Miller Pauline M.
Publication year - 1961
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1961.tb11619.x
Subject(s) - gametophyte , fern , sucrose , biology , light intensity , botany , darkness , far red , horticulture , red light , optics , food science , physics , pollen
M iller , J. H. (Yale U., New Haven, Conn.), and P. M. M iller . The effect of different light conditions and sucrose on the growth and development of the gametophyte of the fern, Onoclea sensibilis. Amer. Jour. Bot. 48(2): 154–159. Illus. 1961.—Gametophytes grow rapidly under the highest intensity white fluorescent light used, 400 ft.‐c. Growth is correspondingly less at 220 and 28 ft.‐c., and at the lowest light intensity the gametophytes are markedly longer than wide. One percent sucrose added to the medium reverses the growth limitation imposed by low light intensity and produces a morphology comparable to that found under higher intensities. Sucrose does not sustain heterotrophic growth in total darkness, but permits growth if the gametophytes are given low dosages of red light. The effect of red light is reversible by far‐red illumination.