KARAKTERISASI MORFOLOGI DAN MOLEKULER PATOGEN HAWAR BATANG BERLENDIR PADA TANAMAN MELON (Cucumis melo L.) DAN MENTIMUN (Cucumis sativus L.) MORPHOLOGICAL AND MOLECULAR CHARACTERIZATION OF CAUSAL ORGANISM OF GUMMY STEM BLIGHT IN MUSKMELON (Cucumis melo L.) AND CUCUMBER (Cucumis sativus L.) - LESTARI, PRABOWO (2013)