ارزیابی اثر کاربرد سویه‌هایی از باکتری سودوموناس برعملکرد و اجزای عملکرد گندم در سطوح مختلف فسفر

نوع مقاله : علمی - پژوهشی

نویسندگان

چکیده

کاربرد کودهای زیستی به ویژه باکتری‌های محرک رشد گیاه به جای مصرف کودهای شیمیایی از مهمترین راهبردهای تغذیه‌ای در مدیریت پایدار بوم نظام‌های کشاورزی می‌باشد. در این تحقیق به منظور ارزیابی اثر باکتری‌های سودوموناس در سطوح مختلف فسفر بر عملکرد و اجزای عملکرد گندم رقم کویر آزمایشی در مزرعه آموزشی پژوهشی دانشگاه آزاد اسلامی واحد دامغان اجرا شد. آزمایش بصورت کرت‌های خرد شده در قالب طرح پایه بلوک‌های کامل تصادفی با سه تکرار به اجرا درآمد. عامل اصلی شامل 5 سطح کود شیمیایی سوپر فسفات تریپل (0P، 1P، 2P، 3P و 4P) به ترتیب ( 0، 60 ، 90 ، 120 و 150 کیلوگرم در هکتار ) و عامل فرعی شامل چهار سطح (0S، 1S، 2S و 3S) به ترتیب (تیمار بدون تلقیح (شاهد) و سه سطح سویه‌های سودوموناس پوتیدا 21 ، سودوموناس پوتیدا 158 و سودوموناس فلورسنس 168) بود. نتایج نشان داد که تعداد سنبله، تعداد دانه، وزن هزار دانه، عملکرد دانه و عملکرد ماده خشک به طور معنی داری تحت تأثیر سطوح مختلف کود فسفر، باکتری و اثر متقابل آن‌ها قرار گرفتند. حداکثر عملکرد دانه به مقدار 7633 کیلوگرم در هکتار از تیمار تلقیح با سودوموناس فلورسنس 168 به همراه مصرف 90 کیلوگرم در هکتار سوپر‌فسفات تریپل حاصل شد. با توجه به عملکرد مناسب سودوموناس فلورسنس 168 می‌توان چنین نتیجه گرفت که در شرایط کاهش استفاده از کودهای فسفاته، این سویه قادر است ماده خشک تولیدی و عملکرد دانه را در حد قابل قبولی افزایش دهد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluating the effect of some Pesodomonas bacteria strains on wheat yield and its components at various levels of phosphorus fertilization

نویسندگان [English]

  • Shahram Rezvan Beidokhti
  • Alireza Dashtban
  • Mohammad Kafi
  • Sara Sanjani
چکیده [English]

Application of biofertilizers, especially plant growth promoting rhizobacteria (PGPR) is one of the most important strategies for plant nutrition compared to chemical fertilizers, especially in sustainable management of agroecosystems. In order to evaluate the effect of Pesodomonas bacteria strains and chemical phosphate fertilizer on yield and yield components of wheat the Kavir cultivar an experiment was conducted in experimental farm of the Agriculture Faculty of Azad University of Damghan. The treatments were arranged as split plots and were evaluated in a complete randomized block design with three replications. The chemical phosphate fertilizer levels of P0 (control), P1 (60 Kg/ha), P2 (90 Kg/ha), P3 (120 Kg/ha) and P4 (150 Kg/ha) of super phosphate triple were allocated to the main plots. While the different bacteria strains of Pseudomonas putida 21 (S1), Pseudomonas putida 158 (S2), Pseudomonas fluorescens 168 (S3) and non-inoculation control (S0) were allocated to the sub plots. The results of the experiment indicated that the highest grain yield of 7633 Kg/ha was obtained with application of 90 kg/ha of phosphorus fertilizer accompanied with S3 bacteria (strain No.168). The Pseudomonas fluorescens168 demonstrated a remarkable efficiency in dry matter and grain production in wheat with no chemical phosphate application.

کلیدواژه‌ها [English]

  • Pseudomonas bacteria
  • Super phosphate triple
  • Triticum aestivum
  • yield
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