| Show se seeds eds of common weeds germinate after years seeds beeda of plants which belong to the same family as the pea have been proved to germinate after 43 years of dry storage those members of the family to which the common wild morning glory belong lived 15 years beare seeds of burdock brond leaved plantain wild carrot and common vetch lived eight years and water hemlock five years most of the common weed seeds however did not alve longer than three years when kept in fall contact with s the air in a dry place out of otlee ahe soil boll the length of time the same fame seeds lived in the soil coll without germinating has not been definitely established but it Is known that seeds of common farm weeds weed a can live from 10 to 80 50 years in land put down to grass |
