INFLUENCE OF FOUR DIFFERENT GROUNDED SEEDS ON CONTROLLING Meloidogyne incognita INFECTING TOMATO PLANT UNDER GREENHOUSE CONDITIONS

Abstract

A pot trial was carried out to verify the impact of four grounded seeds i.e. caster, garlic, maize and sesame separately added as pre or post planting applications to tomato plants under the stress of Meloidogyne incognita infection in comparison with oxamyl in the greenhouse. Noticeably, data indicated that all tested organic materials as grounded seeds improved plant growth criteria and reduced nematode parameters as well. Using sesame grounded seeds as pre or post applications showed the maximum values of plant length (82.4 and 70.8%),total plant fresh weight (104.0 and 80.2%),shoot dry weight(65.5 and 65.5%),respectively. In the meantime, sesame grounded seeds accomplished the highest reduction percentage in numbers of eggmasses and galls / root system in this study. Caster application ranked second in this respect, whereas plant receiving the maize grounded seeds as pre-planting application gave the lowest amount values in enhancing plant growth parameters. It is evident that N, P, K, OM and O.C concentrations were obviously reduced by nematode infection with various degrees. All tested components showed remarkable increase in N, P, K, OM and O.C concentrations exceeding those of nematode alone.