TY - JOUR AU - Welch, Norman C. TI - Kinetin improves lettuce germination JF - California Agriculture JO - Calif Agr Y1 - 1976/12/01 VL - 30 IS - 12 SP - 13 EP - 13 PB - University of California Agriculture and Nature Resources SN - 0008-0845 UR - http://www.ucanr.edu/sites/calagjournal/archive/?article=ca.v030n12p13 AB - Freshly harvested lettuce seeds often fail to germinate under favorable temperature and moisture conditions-a failure called post-harvest or after-ripening dormancy. In most varieties, such dormancy decreases during storage; storage time needed depends on variety, percentage of moisture in seeds, field temperature at seed maturation, and possibly other factors. Post-harvest dormancy can be largely overcome by pre-chilling moist seeds for five days at 12° C.