ABSTRACT A research abaut of medium kind and variaeties on the yield of letucce plan (Lactuca sativa. L) has been carried out from 11 June 1995 until 25 Julyb1995 in Bulurejo village Mertoyudan distric, Magelang at the altitude of 370 metres above the sea level, the soil type latosol with pH 5,33. The research method Split Plot Design based on randomized complete group design,…