ABSTRACT The research about the effect of time male of detas- seling of male flower to the yield of some varieties of baby corn (Zea mays, L.), had been carried out since October 20, 1992 until December 19, 1992 at Kalinegoro village, Mertoyudan sub distric, Magelang Regency, Central Java on the altitude 350 m. The method of experiment is split plot design with randomized complete blok design…