Giving Some Concentrations of Ethephon on The Growth and Yield of Watermelon (Citrullus Lanatus (Thunb.) Matsum. & Nakai.)

Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai.) is one of the horticultural commodities that have a fairly high economic value. plants are more dominant in producing male flowers than female flowers. Therefore it necessary to be able change sexual expression watermelon One efforts can made increase production by administering growth regulating agent ethepon. This study aims find best concentration ethepon on and yield. used randomized block design (RBD) consisting 5 treatments repeated 4 times. The treatment given was giving which consisted levels, namely control (0 ppm), 100 ppm, 200 300 ppm 400 ppm. parameters observed were plant length, number leaves, when first flower appeared, flowers, fruit planted, weight planted length fruit. results research been carried out show application with increasing appear, fruits per plant.