in order to identify the plant parasitic nematodes of pulse fields in northern khorasan province, 41 soil and root samples were collected from rhizosphere of pisum sp., phaseoulus sp., lens sp. during 2011 and 2012. the nematodes were extracted by combined sieving and centrifugal-flotation method of jenkins (1969) and transferred to glycerin by using method of de grisse (1969). the permanent sl...

Saltwater intrusion is a potential risk damaging crop diversity and productivity due to degraded soil physicochemical properties. However, little known about how salinity affects the structure function of nematodes community in intensive rice cultivated area. This study aimed (1) assess impacts saltwater on nematode alluvial acid sulfate soils; (2) evaluate its relation with conditions. reduced...

A survey of vineyards in western Oregon was conducted in 1994 and 1995 to determine the association of plant-parasitic nematodes with vine health. Seventy vineyards in four regions of western Oregon (16 to 21 vineyards per region) were sampled. The regions were the northern, middle, and southern Willamette Valley, and southern Oregon. Vineyards were selected and partitioned into blocks by varie...

The presence of plant-parasitic nematodes causing crop loss every year had been overlooked in the existing fruits, vegetables and flowers cultivation system Bangladesh. Therefore, study was conducted to isolate identify plantparasitic from soil infected plant-parts fruits (banana, orange), (pointed gourd, tomato brinjal) flower (gerbera) districts Jashore, Jhenaidah, Gazipur Sylhet during 2017-...

Soils and roots of field crops in low-rainfall regions of the Pacific Northwest were surveyed for populations of plantparasitic and non-plant-parasitic nematodes. Lesion nematodes (Pratylenchus species) were recovered from 123 of 130 non-irrigated and 18 of 18 irrigated fields. Pratylenchus neglectus was more prevalent than P. thornei, but mixed populations were common. Population densities in ...

abstract in order to identification of plant parasitic nematodes of rosmarinus officinalis rhizospher during 2008-2009, fifty soil and root samples were collected from campus of ferdowsi university. soil and root samples were washed and nematodes were extracted by centrifugal flotation technique. according to de grisse, 1969 the extracted nematodes were fixed and transferred to glycerin. in thi...

Phytoparasitic nematodes are commonly found in the soil and their presence can lead to plant diseases, weaker growth, reduced yields lower fruit quality. A study conducted 2006–2009, involving monitoring of climatic conditions, identified influence precipitation temperature on number nematodes, 7 sites within a cherry orchard. Soil samples assess nematode populations were taken from that differ...

abstract in order to identify of plant parasitic nematodes of rapeseed in isfahan and fars provinces, 208(96 from esfahan and 112 from fars province) soil and root samples were collected from rapeseed fields during 2005-2007. nematodes were extracted from root and soil , then fixed and transferred to glycerin. the nematodes were mounted on slides and examined by light microscope and identified ...