نتایج جستجو برای: root colonization

تعداد نتایج: 166597  

Journal: :دانش گیاه پزشکی ایران 0
مهسا حاج ملک زنجانی دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج مسعود احمدزاده دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج عباس شریفی تهرانی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج کیوان بهبودی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج روح اله صابری ریسه استادیار دانشکده کشاورزی دانشگاه ولی عصر(عج) رفسنجان، رفسنجان

root colonization by antagonist bacteria has been considered as a prerequisite for a successful biocontrol. for an effective suppression of plant disease, an efficient and fast colonization is necessary to prevent the establishment of pathogen on the root system. colonization of canola root by strain utpf86 were investigated with and without rhizoctonia solani ag-4, under greenhouse conditions....

Mycorrhizal association in seven plants grown in Arasbaran forest located in the north west of Iran was investigated. The soil samples were collected from the plants rhizosphere. Physico-chemical properties of rhizosphere soils like soil texture, pH, EC and some extractable nutrients such as N, P and K were recorded. The number of spores in rhizosphere and percentage of root mycorrhizal coloniz...

Journal: :حفاظت گیاهان 0
مریم رمضانی مقدم وحید جهانبخش عصمت مهدیخانی مقدم ساره بقائی راوری حمید روحانی

in this study, high biocontrol potentially bacillus isolates, against root knot nematode were evaluated from viewpoint of biofilm formation and root colonization in vitro. among 139 bacillus isolates from tomato rhizosphere of several regions of razavi khorasan, 15 strains which show more ability to prevent egg hatch and cause larvae mortality of meloidogyne javanica, were tested in biofilm ass...

Journal: :بوم شناسی کشاورزی 0
صادق ملکی فیاض آقایاری محمد رضا اردکانی فرهاد رجالی

this study in order to evaluate the possibility of improving the root growth of lentil with use mycorrhiza symbiosis with cooperation azospirillum bacteria under rainfed conditions was conducted. a tri-factorial experiment was organized on the basis of randomized complete block design with four replicates, in which factor m was the mycorrhizal inoculums in three levels including (not use, use m...

Journal: :Journal of plant physiology 2004
Horst Vierheilig

An established arbuscular mycorrhizal symbiosis suppresses further mycorrhization. It is not clear whether the observed suppressional effect is linked with the level of root colonization or not. In the present work we studied the effect of the degree of root colonization by the arbuscular mycorrhizal fungus Glomus mosseae on further root colonization by G. mosseae. At different time points barl...

Armin SAED-MOUCHESHI Bahram HEIDARI Mehdi ZAREI Mohammad PESSARAKLI Yahya EMAM

This study was conducted to evaluate changes in antioxidants, free proline, relative water content and determination of root colonization of four commercial wheat (Triticum aestivum L.) cultivars (Azar2, Darab2, Shiraz, and Falat) inoculated with the fungus Glomus intraradices, under four water regimes of 100, 75, 50, and 25% of field capacity in the year 2010 at the School of Agriculture, Shir...

Journal: :journal of agricultural science and technology 2012
r. lakshmipathy a. n. balakrishna d. j. bagyaraj

the impact of land use intensity on the abundance and diversity of arbuscular mycorrhizal fungi (amf) was investigated at six land use types viz., natural forest, grassland, acacia plantations, cardamom plantations, coffee plantations and paddy fields in the niligiri biosphere of the western ghats in south india. there was no significant difference in amf root colonization in different land use...

In this study seven plant species were collected from the forest of Arasbaran located in the northwest of Iran. Sampling was conducted in May and August and roots were used for calculating vesicular arbuscular mycorrhizal colonization percentage during the same period. Fine roots were separated, washed and put in FAA solution as a fixative. Through the time, root colonization of all plant speci...

ژورنال: علوم آب و خاک 2005
محمد حاجیان شهری, , مسعود عباسی, ,

In order to investigate variations of spore population, root colonization and also to determine mycorrhizal symbiosis in the root and rhizosphere of Pistachio trees (Pistacia vera) in natural forests, two study stations in Kalat (Chachaeh) and Sarakhs (Shorlogh) regions were selected. Sampling from soil and root of the trees were taken from under the canopy and from a depth of 30 cm. On a month...

محمد حاجیان شهری, , مسعود عباسی, ,

In order to investigate variations of spore population, root colonization and also to determine mycorrhizal symbiosis in the root and rhizosphere of Pistachio trees (Pistacia vera) in natural forests, two study stations in Kalat (Chachaeh) and Sarakhs (Shorlogh) regions were selected. Sampling from soil and root of the trees were taken from under the canopy and from a depth of 30 cm. On a month...

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