Root-Knot Nematodes (Meloidogyne spp.) Prevention on Tomato Plants by Utilizing Rhizosphere Bacteria for Sustainable Agriculture
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Root-Knot Nematodes are one of roots damaging nematodes. Their existence leads to decrease in tomatoes productivity in Indonesia as much as 46.2%. Currently, the pest and damage prevention is focused on biological control to attain the sustainability in agriculture. Utilizing of rhizosphere bacteria is an alternative for this purpose by both direct mechanism and indirect mechanism through induced resistance. This researchis proposed to obtain the effective rhizosphere bacteria as an agent of tomato plants resistance induction on nematodes and observe its influence on the growth and productivity of the tomato plants. The methods conducted are exploration, isolation, selection, and laboratory scale experiments. Exploration in five tomato planting regions provided 189 isolates. The further laboratory scale selection resulted in 18 candidates of bacteria having the potency in growth and superiority in antagonist, and nine appropriate consortium isolates was obtained in the next compatibility test. On the final test in the field, it was concluded that P7 consortium isolate consisting of (LM24 and CK212), P52 (LM38+CN26+CK27+CK212) simply suppressed the presence of nematodes more over P40 (LM24 + CN26) solely provided the proper growth, whereas P31 (LM24+CN26+CK27) was not only able to inhibit nematodes but also provide the satisfying growth and productivity.
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