Merlina H. Juruena1, Loren Banayag2
1Faculty Researcher, University of Southeastern Philippines, Tagum-Mabini Campus, Philippines
2Research Staff, University of Southeastern Philippines, Tagum-Mabini Campus, Philippines
The potential use of urea in eliminating Fusarium oxysporum f. sp. cubense (Foc TR4) from infected Cavendish banana plants was investigated. In vitro tests, found that urea at 1% and 2% (w/v) eliminated the fungus in Fusarium wilt infected banana tissue, when measured 7, 14 and 30 days after treatment. Furthermore, urea at 0.5% and 0.25% (w/v) reduced the growth of the fungal colony of Foc TR4 by 38.5% and 31.2% on Nash Snyder medium. Prolonged treatment at 14 and 30 days further reduced fungal recovery on treated banana tissue from 5.5% to 12.2%. Greenhouse tests revealed that there was no infection in banana tissue grown in soil inoculated with TR4 and treated with 1% and 2% (w/v) urea two months after incorporation into the soil. This study provides evidence of the efficacy of urea as an alternative to rice-hull burning to eliminate Foc TR4 from infected banana tissue both in vitro and in vivo for the Philippines.
Biography to come.