in order to identify the plant parasitic nematodes of tomato fields in northern khorasan province, 50 soil and root samples were collected during 2009 - 2010. nematodes were extracted by combined sieving and centrifugal-flotation method and processed to be transferred to glycerin. after preparing microscope slides, the morphological and morphometrical characters of the nematodes were studied us...

results significant differences were observed in the results of co-culture of nematodes larva and fungi after seven days. the most effective fungi against the nematodes larvae were cladosporium sp., trichoderma sp., fusarium equisetti, after seven days of incubation. materials and methods sheep feces were employed to provide the required third stage larvae source for the experiments. the nemato...

Root-knot nematodes, Meloidogyne spp., are one of the important plant parasitic nematodes of tomato in the world. The most suitable control method of plant parasitic nematodes is the use of resistance sources and tolerant cultivars. In the earlier studies, the results showed thatonly 2% (19 out of 537 varieties) were resistant and tolerant to the root knot nematodes. In the supplementary studie...

tall buildings despite their different features and impacts are just defined by their height. the main problem of defining tall buildings in cities in terms of urban landscape is that this definition does not have an appropriate relativity, and only includes the investigation of tall buildings based on their height. applying the criteria for locating, architecture and height of tall buildings i...

during a survey of plant-parasitic nematodes in bamyan and mazar sharif provinces of afghanistan, several species of plant-parasitic nematodes belonging to infraorder tylenchomorpha were detected and identified. filenchus facultativus; filenchus discrepans; filenchus elegantulus; boleodorus volutus; neopsilenchus magnidens; coslenchus costatus; ditylenchus myceliophagus; tylenchorhynchus clarus...

abstract in order to identify biodiversity of  plant parasitic nematodes in alfalfa and no comprehensive research about the plant parasitic nematodes associated with alfalfa,during 2002-2003, 33 soil samples were collected from alfalfa fields of several locations in alfalfa fields in ahar region, partly biodiversity plant parasitic nematodes in this crop were identified.nematodes extracted by c...