The effect of waste-water on root knot nematode, Meloidogyne Javanica pathogenicity on tomato
In recent years, application of municipal and industrial wastewater as irrigation water in agriculture has increased. Plant parasitic nematodes, especially root knot nematodes, cause damage to the most of agricultural products, and many efforts have been done to control them. To investigate the effects of wastewater on root knot nematode pathogenicity and damage on tomato, the inoculated plants by nematode were irrigated by different amounts of wastewater (0, 25, 50, 75, and 100 %) in tap water as a completely randomized design with six replications. Analysis of variance and mean comparisons showed the positive effect of wastewater on increasing of growth indices and nutrient elements of plants. Thus, the length and fresh weight of plant shoots in 100% wastewater treatment increased: 62% (from 32 to 50 cm) and 30% (from 28 to 40 gr) compared to control, respectively. Nutrient elements such as nitrogen, phosphorus, calcium and magnesium also increased in wastewater treatments. However, the effects of wastewater were less on nematode pathogenicity.
Journal of Plant Protection, Volume:36 Issue: 4, 2014
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