The Effect of the Source of Bud Set Material and Auxin Concentrations to the Growth and Production of Sugarcane (Saccharum officinarum L.) - Hutapea, Yohannes Kristian Immanuel; university of sumatera utara (Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan, 2019)