نتایج جستجو برای: bacillus strains efficiency were tested to control root knot nematode

تعداد نتایج: 11189724  

The present study explored the efficacy of Bacillus spp. and protease production for biocontrol of the root-knot nematode Meloidogyne javanica in African violet media. Among 100 bacterial isolates from various soils, the highest nematode mortality was observed for treatments with isolate GM-18, which was identified as Bacillus subtilis based on cultural and morphological characteristics and 16S...

Journal: :journal of ornamental plants 2015
m. nasr esfahani a.r. ahmadi k. shirazi

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...

Journal: :دانش گیاه پزشکی ایران 0
آیت الله سعیدی زاده استادیار دانشکده علوم کشاورزی، دانشگاه شاهد فهیمه نیاستی کارشناس دانشکده علوم کشاورزی، دانشگاه شاهد

in the course of the present study, samples were taken from the non-defoliant strain of verticillium dahliae (ss-4) from infected olive groves in toshan area in southern gorgan. root-knot nematode, meloidogyne javanica, was recovered from infested olive seedlings and after identification was reaned on tomato seedlings cv. rutgers. during the study, one-year-old seedlings of olive cultivars zard...

Journal: :حفاظت گیاهان 0
فاطمه ناصری نسب نوازاله صاحبانی حسن رضا اعتباریان

abstract in this study the effect of combination of trichoderma harzianum bi and salicylic acid were studied on root knot nematode (meloidogyne javanica) disease on tomato under green house conditions. the roots of tomato seedlings at six-leaf stage were inoculated with suspensions of fungal antagonist (106 conidia/ ml), 5mm salicylic acid and 2000 second-stage juvenile (j2). combined applicati...

Journal: :Journal of nematology 2004
Yuji Oka Rivka Offenbach Shimon Pivonia

Resistance of pepper species (Capsicum annuum, C. baccatum, C. chinense, C. chacoense, and C. frutescens), cultivars and accessions to the root-knot nematodes Meloidogyne incognita race 2 and M. javanica, and their graft compatibility with commercial pepper varieties as rootstocks were evaluated in growth chamber and greenhouse experiments. Most of the plants tested were highly resistant to M. ...

Journal: :کنترل بیولوژیک آفات و بیماری های گیاهی 0
هادی گلزاری دانشجوی سابق کارشناسی ارشد بیماری¬شناسی گیاهی محمد سالاری دانشیاران گروه گیاه¬پزشکی، دانشگاه زابل ابراهیم صداقتی خروی استادیار گروه گیاه¬پزشکی، دانشگاه ولی عصر (عج) رفسنجان فرهاد رجالی استادیار موسسه تحقیقات خاک و آب، تهران

greenhouse studies showed in the transplant of tomato that two weeks before infection with nematodes with two species of mycorrhizal g. mosseae and g. intraradices had been inoculated, were significantly offseted the reduction of growth that had been done by nematodes. it should be noted that the percentage of root colonization with two species 66.3% and 62.2% respectively and based on this stu...

Journal: :دانش گیاه پزشکی ایران 0
هادی گلزاری دانش آموخته کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج ناصر پنجه که دانشیار دانشگاه ادیمی زابل مسعود احمدزاده دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج محمد سالاری استادیار دانشگاه ادیمی زابل ابراهیم صداقتی خروی استادیار دانشگاه ولی عصر(عج) رفسنجان، رفسنجان

an ability of the fluorescent pseudomonad bacteria is to secrete such secondary metabolites as hydrogen cyanide, protease, salicylic acid as well as siderophore which prevent the growth of soil-habitant pathogens. tests were done for evaluating the materials produced by the said bacteria. in the tests' cultures, p. aeruginosa strains 7nsk2, utpf92, and utpf86 produced the most hydrogen cya...

2001
M. H. Yu

sought for accelerating sugarbeet root-knot nematoderesistance breeding. An isozyme pattern of phosphogluRoot-knot nematode (Meloidogyne spp.) is a destructive pest of comutase (PGM) has been shown to be associated with sugarbeet (Beta vulgaris L.) that reduces production in infested areas root-knot nematode resistance found in the Mi-1 Beta and is difficult to manage. Identification of nematod...

ژورنال: علوم آب و خاک 2007
حمید روحانی, , دوستمراد ظفری, , ابراهیم کریمی, , غلام خداکرمیان, , میثم تقی نسب, ,

In order to study the biological control of carnation vascular wilt disease caused by Fusarium oxysporum f.sp. dianthi, 141 bacterial strains were isolated from carnation rhizosphere, and their antagonistic activity was evaluated against fungal pathogen in dual culture method. Among the tested strains, 16 strains showed antagonistic activity seven of them with more activity were selected for fu...

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