Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitlePERIODICITY OF SEEDLING EMERGENCE AND ACHENE SURVIVAL IN SOME SPECIES OF CARDUUS, CIRSIUM AND ONOPORDUM.AuthorsRobert, H. A.; Chancellor, R. J.PublicationJournal of Applied Ecology, 1979, Vol 16, Issue 2, p641ISSN0021-8901Publication typeAcademic Journal