ABSTRACT The experiment to find the effect of triacontanol con- centration to the production of several varietie of red papper (Capsicum annus L.) has been conducted Balai Benih Induk of Ngipik Sari, Faken, Sleman, Yogyakarta beginning 25 of Marth untill 27 of Agust 1988. The site of at the al- titude of 850 meters. The experimental design used was Randomised Completely Denign (CRD) it w…