نتایج جستجو برای: nematode population

تعداد نتایج: 707809  

Journal: :journal of agricultural science and technology 2014
a. salahi ardakani z. tanha mafi a. mokaram e. mohammadi goltapeh

to understand the relationship between natural physicochemical properties of soil and abundance of citrus root nematode (tylenchulus semipenetrans), a survey was conducted during 2009-2010 in some 37 citrus orchards, in kohgilouyeh va boyerahmad province, iran. distribution of the citrus nematode was determined by collecting random samples from the soil and citrus plant roots, extracting and en...

Journal: :journal of agricultural science and technology 2015
l. u. amulu o. k. adekunle

the effects of poultry manure and cow dung in comparison with the nematicide, carbofuran on the yield of okra infested with root-knot nematode meloidogyne incognita race 2 were investigated. two plots of 17×11 m, each naturally infested with the mentioned nematode, were selected for the study. treatments were poultry manure and cow dung each at the rates of 5 and 10 t ha-1, carbofuran 3g at the...

ژورنال: علوم آب و خاک 2003
سید محمود اخوت, , علی برهانی, , احمد خیری, , حسن اشتیاقی, ,

In an etiological study on stunted, nursery grown maple seedlings, a species of root-lesion nematode (Pratylenchus vulnus) and two species of fusarium (Fusarium oxysporum and F. solani) were isolated from the infected roots. Interactions between the nematode and the two fungi in a complete randomized design with six treatments and four replications were carried out under greenhouse conditions. ...

سید محمود اخوت, , علی برهانی, , احمد خیری, , حسن اشتیاقی, ,

In an etiological study on stunted, nursery grown maple seedlings, a species of root-lesion nematode (Pratylenchus vulnus) and two species of fusarium (Fusarium oxysporum and F. solani) were isolated from the infected roots. Interactions between the nematode and the two fungi in a complete randomized design with six treatments and four replications were carried out under greenhouse conditions. ...

Root-knot nematodes cause physiological and anatomical disorders in plants. The present study contains the results of an investigation of the effect of Meloidogyne incognita race2 on the growth of roots and aerial organs of tomato under greenhouse conditions. The experiment in a completely randomized design split split plot on two susceptible (Falat Y) and tolerante (Gina VF) tomatoes variety w...

The influence of different initial inoculum densities of the root-knot nematode Meloidogyne javanica on the growth of sage (Salvia officinalis), root-knot development and nematode multiplication was investigated 90 days after inoculation under greenhouse conditions. With the increase in the nematode initial inoculum densities, shoot fresh/dry weight, shoot/root length and root fresh/dry weight ...

B. ANSARI POUR M. NASR ESFAHANI1

The present study is based on the investigation of a soil hyphomyces, Paecilomyces lilacinus, an opportunistic bio-control agent, in controlling root-knot nematode Meloidogyne javanica on tomato in greenhouse conditions. P. lilacinus, effectively promoted the growth of plants inoculated with M. javanica by suppressing its pathogenesis as root galling by the nematode and egg mass production was ...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
رامین حیدری (مسول مکاتبه) گروه گیاهپزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج ابراهیم پورجم گروه بیماری شناسی گیاهی دانشکده کشاورزی دانشگاه تربیت مدرس

efficiency of pleurotus ostreatus and p. sajor-caju as biocontrol agents of the root knot nematode, meloidogyne javanica, was evaluated in vitro and in greenhouse experiments. population of the nematode were prepared and nematicidal effects of culture filtrates of the fungal specieson second stage juveniles of m. javanica were tested. substrates completely colonized by tested fungi as fungal in...

Journal: :journal of agricultural science and technology 2011
s. jamali e. pourjam n. safai

the relationship between initial population density of rice white tip nematode (aphelenchoides besseyi) and yield was examined on oryzae sativa cv. alikazemi. experiments were conducted in greenhouse, micro-plot and field conditions. seinhorst’s model was used to describe the relationship between nematode population density and crop yield. the parameters of the model, minimum yield (m), constan...

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