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GERMINATION OF ACHENES OF BIDENS PILOSA L.
Author(s) -
VALIO I. F. M.,
KIRSZENZAFT SIMONE L.,
ROCHA ROSELY F.
Publication year - 1972
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1972.tb01278.x
Subject(s) - germination , achene , bidens pilosa , darkness , botany , far red , red light , horticulture , biology
S ummary The germination of achenes of Bidens pilosa L. was enhanced by light. Under continous fluorescent light germination was 80–90%. Germination was also induced by brief exposures (2 minutes or longer) to blue, green, red and far‐red light. The promotive effect of an irradiation with red was not reversed by far‐red. Cold treatments also enhanced germination. A low concentration (5 ppm) of 6–benzyladenine stimulated germination of the achenes in darkness and also enhanced the proportion of germination in combination with red and far‐red irradiation.