ABSTRACT The research about the effec of plant regulator of folsistin and petroil glutamic acid concentration to the yield of varietys red peper variety (Capsicum annuum L.) had been conducted at Geger village, Tegalrejo district, Magelang Regency from April 21st 1995 until September 7th 1995. The soil type is latosol, 8,5 pH on the altitude of 320 m above sea level. The purpose of …