Information on the germination and viability of turnipweed seeds could behelpful in developing appropriate management strategies for this weed.Therefore, experiments were conducted to investigate the effects of light,storage conditions, duration of storage or burial, and seed type (naked,i.e., fruit wall was removed and encapsulated in siliques) on germinationand viability of turnipweed. The naked and encapsulated seeds (fruit) werekept under five different storage conditions, including dry storage at 25 ±2 C and 3 ± 1 C and outdoor environments (soil depths of 10, 20, and 40 cm).All seeds were retrieved every 2 mo and tested for germination in light anddarkness. At each exhumation date, nongerminated seeds were treated withtriphenyltetrazolium chloride to test their viability. The germination ofseeds liberated from siliques (85%) was markedly greater than that of seedsin intact siliques (20%). The germination response of naked and encapsulatedseeds to light varied between storage conditions and through time. Underindoor conditions (room and cold), both seed types had greater germinationpercentages in dark on most occasions than those in light. On the contrary,the germination of siliques buried at soil depths of 20 or 40 cm wasconsiderably stimulated by light. Under indoor conditions, the percentviability of both seed types only declined marginally, whereas seeds buriedin soil showed high rates of mortality. Seeds in intact siliques persistedlonger under either indoor or outdoor conditions than naked seeds.