نتایج جستجو برای: butyric acid application against root knot nematode (meloidogyne javanica) was investigated in cucumber. results indicated that inoculation of cucumber by the nematode infected the plant

تعداد نتایج: 25627189  

Journal: :دانش گیاه پزشکی ایران 0
فهیمه عمران زاده دانش¬آموخته کارشناسی ارشد پردیس ابوریحان دانشگاه تهران نواز اله صاحبانی استادیار پردیس ابوریحان دانشگاه تهران حشمت اله امینیان استادیار پردیس ابوریحان دانشگاه تهران

the chemical compound dl-?-amino-n-butyric acid (baba) has been introduced as a promoter of induction of resistance in plants against plant pathogens. in this study, promotion of induction of some such defense compounds as peroxidase and polyphenol oxidase enzymes through dl-?-amino-n-butyric acid application against root knot nematode (meloidogyne javanica) was investigated in cucumber. result...

Journal: :بوم شناسی کشاورزی 0
نفیسه کتولی عصمت مهدیخانی مقدم راحله مقصودلو

one of the methods for controlling cucumber root-knot nematode is the use of plant extracts that have nematicidal effect. in this research, sweet wormwood and castor bean were selected and their anti-nematode activity has been investigated against cucumber root-knot nematode (meloidogyne incognita) in laboratory and greenhouse. experiments were carried out by using randomized completely design ...

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 ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

we have two part in this thesis, at first: the interaction of native calf thymus dna (ct-dna) with two anthraquinones including quinizarin (1,4- dihydroxy anthraquinone) and danthron (1,8- dihydroxy anthraquinone) in a mixture of 0.04 m brittone-robinson buffer and 50% of ethanol were studied at physiological ph by uv-vis absorption, florescence, circular dichroism spectroscopic methods, viscos...

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: :کشاورزی (منتشر نمی شود) 0
سمیه مختاری دانشجوی فارغ التحصیل کارشناسی ارشد، گروه حشره شناسی و بیماری های گیاهی، پردیس ابوریحان، دانشگاه تهران نوازاله صاحبانی استادیار، گروه حشره شناسی و بیماری های گیاهی، پردیس ابوریحان، دانشگاه تهران حسن رضا اعتباریان استاد بازنشسته، گروه حشره شناسی و بیماری های گیاهی، پردیس ابوریحان، دانشگاه تهران

biological control of root-knot nematode meloidogyne javanica by application of pseudomonas fluorescens cha0 was evaluated under greenhouse condition. results showed that p. fluorescens (109 cfuml-1) as shoot spray significantly reduced in no. of eggmass and egg per individual eggmass as comparison to control. application p. fluorescens as shoot spray induced systemic activation of peroxidase (...

Journal: :iran agricultural research 2007
m. nasr esfahani1 b. ansari pour

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 ...

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 ...

Journal: :گیاه پزشکی 0

in this study, the effect of salicylic acid (sa) on root knot nematode (meloidogyne javanica) pathogenicity and induction of some defense mechanisms such as polyphenol oxidase enzyme activity and total phenol accumulation were investigated in greenhouse conditions. we demonstrated that application of 5mm salicylic acid through foliar spray could induce resistance against m. javanica in tomato. ...

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