Banana (Musa paradisiaca L.) as famous tropical fruit around the world. The one important and destructive disease of banana is Fusarium wilt caused Fusarium oxysporum f.sp. cubense (Foc). Foc as soil-borne pathogens and movement of pathogen through the rhizome and water, capable survive in waste crops at the field. The purpose research is to study physiological character of Bacillus sp. such as : ability of bacteria produced IAA (Indole Acetic Acid), gibberelin (GA3), ability phosphate solubilizing and produce salicylic acid as biological control against Foc. The research was conducted from March to
Fusarium wilt caused by Fusarium oxysporum f.sp. cubense (Foc) is a major disease on banana plants in the world and causes huge losses. The pathogen is very difficult to control, because the complexity of the pathogen that consisting in many races and can persist over 40 years without its host plant. This study was aimed to determine the physiological races and grouping of Foc isolates from several banana plantation areas in South Sulawesi. The study consisted of collection of F. oxysporum f.sp. cubense isolates and inoculation test onto plants with a concentration of 106 spores/ml. Barangan, Ambon and Kepok variety obtained from the tissue culture and Heliconia were used as test plants. Fusarium oxysporum fsp. cubense suspension was applied by spraying on banana plant roots. Observation was conducted in the form of first symptoms appearance, leaf symptom development and observation of symptom in rhizome four weeks after inoculation. All of Foc isolates caused severe symptom on banana varieties tested and Heliconia. Based on this finding, it concluded that all isolates of Foc from Makassar, Bantaeng and Gowa district were classified into race IV.
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