Penekanan hayati penyakit layu fusarium pada subang gladiol (original) (raw)

Research aimed at knowing and gaining the best biological agent in suppressing Fusarium oxysporum f.sp. gladioli in planta through soaking gladiolus corms. This research was carried out at the screen house of Agricultural Faculty, Jenderal Soedirman University, Purwokerto from August 2005 up to January 2006. Antibiotic of 2,4-diacetylphloroglucionl (Phl), Bacillus subtilis, or ginger and ginseng isolates of Trichoderma harzianum were used with benomyl and warm water as control. Randomized Block Design was used with eight treatments and four replicates. Result of the research showed that the best antagonist in suppressing the disease was T. harzianum ginger isolate with incubation period, disease intensity, and number of late population of 64.13 days after inoculation, 15.55%, and 20 cfu/g soil, respectively, or potencially decrease the disease of 83.34%. The ginger isolate was the best isolate to improve crop hegiht, leaves numbers, corm and root fresh weight, leaves and stalk fresh...