8088

7506

كارشناسي ارشد

خاكشناسي

اصفهان: دانشگاه صنعتي اصفهان، دانشكده كشاورزي

1391

ده،70ص.: مصور،جدول،نمودار

ص.ع.به فارسي و انگليسي

مژگان سپهري، هادي اسدي رحماني

فرشيد نوربخش، اميرحسين خوش گفتارمنش

11/8/92

محمدرضا مصدقي، محمدرضا سبزعليان

مهندسي كشاورزي

ID7506

به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي

76 Co inoculation Effect of The Endophytic Fungus Piriformospora indica with The Plant Growth Promoting Rhizobacteria on The Maize undre Salinity condition Mohammad Aghababaeian Najafabadi aghababaiyan@yahoo com Department of Soil Science College of Agriculture Isfahan University of Technology Isfahan Iran Degree M Sc Language Farsi Supervised by Assist Prof M Sepehri m sepehri@aa cc iut ac ir Assist Prof H Asadi rahmani Asadi @yahoo com Abstract Soil microorganisms in addition to increasing availability and uptake of plant nutrients increase plant tolerance to biotic and abiotic stresses so improve plant yield in unfavorable environmental conditions Behavior and performance of each microorganisms in the rhizosphere can influenced by other microorganisms Interaction between rhizospheric microorganisms can be indirectly alter plant growth and its yield This study was conducted to evaluate the effect of co inoculation of entophytic fungi Piriformospora indica and four plant growth bacteria in nonsaline and salinity stress conditions on maize in greenhouse soilless culture Research Center Isfahan University of technology Treatments included two levels of fungi with and without fungi levels of bacteria Azortobacter chroococcum Azospirillum lipoferom Herbaspirillum seropedicae Pseudomonas putida and control without bacteria and two salinity levels and mM NaCl Co inoculation of the P indica and Azotobacter bacteria in non saline conditions caused to increase the amount of K in shoot and also the activity of catalase and peroxidase enzymes In salinity condition and in presence of these microorganisms shoot dry weight phosphorous concentration in shoot and root parts of plant and potassium concentration in shoot increased but catalase and peroxidase activity the ratio of Na to K in shoot and shoot sodium concentration decreased in compare to the controls Co inoculation of the fungus and Azospirillum bacterium in nonsaline condition increased the activity of catalase and also the concentration of Na and K in the shoot but in salinity stress these relationship caused an increasment in root and shoot dry weight and phosphorous concentration and an decline in Na concentration in root The ratio of Na to K in the root and catalase and peroxidase activity in the shoot part of plant In non saline condition and co inoculation of P indica and Herbaspirillum root dry weight and sodium and phosphorous contents of shoot increased However in salinity stress condition the concentration of potassium and phosphorous in the shoot and root respectively increased and decreased but sodium concentration in root and the ratio of Na to K in the shoot decreased Co inoculation of P indica and Pseudomonas in non saline condition increased phosphorous content in the shoot but decrease the activity of catalase and peroxidase and shoot dry weigth However under salinity stress shoot dry weight and phosphorous concentration inPDF created with pdfFactory trial version www pdffactory com

مژگان سپهري، هادي اسدي رحماني

فرشيد نوربخش، اميرحسين خوش گفتارمنش

محمدرضا مصدقي، محمدرضا سبزعليان