title: The stimulation of pollen tube formation of Pinus silvestris by ultra-violet light.
mesh_terms: D003609:Dactinomycin / Q000494:pharmacology; D004307:Dose-Response Relationship, Radiation; D008027:Light; D011058:Pollen; D011830:Radiation Effects; D014197:Trees; D014466:Ultraviolet Rays
chemical_list: D003609:Dactinomycin