Pengujian Ketahanan Dari 52 Nomor Jagung Terhadap Penyakit Bulai Yang Disebabkan Oleh Scelerospora Maydis (Rac.)

Abstract

Fifty two corn varieties and inbreds were tested for resistance to downy mildew (Sclerospora maydis) at the IPE experimental station at Cikarawang. Bogor. Natural and additional inoculations resulted in infection rates of 85 % and 14 % respectively on Harapan (susceptible standard) and H6 (resistant standard). Bromo. Arjuna and H159 were infected at rates of 6. 23 and 18 % respectively. All IPB hybrids anc inbreds and all introduced varieties from Thailand are resistant but all introduction from CIMMYT Mexico are susceptible.