The Application of Endophytic <i>Trichoderma Viride</> PS-3.7 Using Indigenous Tidal Swamp Aquatic Weeds Media to Control Paddy Wilt Disease
Keywords:Trichoderma, aquatic weed, wilt disease, swamps land
Characteristic of paddy at tidal swamp should passed taradak, ampak and lacak phase. Disease control by using synthetic pesticides sometimes constrained by land inundated. This research tries to antagonists and aquatic weeds utilizing site-specific swamps land. The result of the study giving evidenceÂ the best antagonist (Trichoderma viride PS-3.7) with aquatic weeds used as applicative media are considered to be able to increase the number of antagonistic spores, inhibiting, and antagonistic potential toward wilt disease in paddies caused by Fusarium oxysporum. Then, the number of spores produced in enceng gondok (Eichhornia crassipes),, kiambang (Salvinia molesta)Â and kayapu (Pistia stratatiotes) were (7.80 x 108 spora/g), (6.1 x 108 spora/g), (2.98 x 108 spora/g), respectively. The inhibiting capability of Trichoderma viride isolate PS-3.7 toward F. oxysporum was 80.44%, while it reached 90.22% toward Fusarium oxysporum. The results of the observation revealed that in taradak phase where the applicative medium of water hyacinth was employed, the intensity of disease was 15.71%, ampak phase, where kiambang was introduced, the disease intensity was 20.00%, while in lacak phase with the application of water hyacinth, the disease intensity was only as much as 10.70% in comparison with the control group which reached 45.60%.
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