RT Journal Article SR Electronic T1 Penicillin Action on the Germination of Seeds JF Science JO Science FD American Association for the Advancement of Science SP 18 OP 18 DO 10.1126/science.104.2688.18 VO 104 IS 2688 A1 RIBEIRO, D. FONSECA YR 1946 UL http://science.sciencemag.org/content/104/2688/18.1.abstract AB