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تاثیر باکتریهای محرک رشد گیاه بر میزان آهن قابل جذب خاک و جذب آن توسط گندم | ||
| دانش کشاورزی وتولید پایدار | ||
| مقاله 4، دوره 28، شماره 2، تابستان 1397، صفحه 53-64 اصل مقاله (806 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
اکبر قدم خانی1؛ نعیمه عنایتی ضمیر  2؛ مجتبی نوروزی مصیر2
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| 1گروه علوم خاک، دانشگاه شهید چمران اهواز | ||
| 2گروه علوم خاک دانشگاه شهید چمران اهواز | ||
| چکیده | ||
| چکیده کمبود آهن قابل جذب برای گیاه در بیشتر اراضی تحت کشت کشور وجود دارد. از طرفی برخی باکتریهای محرک رشد گیاه میتوانند موجب افزایش دسترسی عناصر برای گیاه شوند. در مطالعه حاضر تاثیر باکتریهای محرک رشد بر آهن قابل جذب در خاک و برخی ویژگیهای گندم رقم چمران در قالب طرح کاملا تصادفی با آرایش فاکتوریل در گلخانه بررسی شد. فاکتورهای آزمایش شامل چهار سطح باکتری، شاهد بدون مایه زنی، مایهزنی با انتروباکتر کلوآسه R33، مایه زنی با انتروباکتر کلوآسه sug R_1و مایه زنی با هردو باکتری و سه سطح کود سولفات آهن (صفر، 50 و 100 درصد نیازی کودی) بودند. نتایج نشان دهنده کمترین مقدار pHو بیشترین مقدار آهن قابل جذب خاک در تیمار دارای مخلوط دو باکتری و سطح کودی 50 درصد مشاهده شد. بیشترین عملکرد دانه با 26 درصد افزایش در تیمار مخلوط دو باکتری و سطح کودی 50 درصد نسبت به شاهد مشاهده گردید. بیشینه غلظت آهن و همچنین آهن جذب شده در دانه نیز به ترتیب با 172 و 50 افزایش نسبت به شاهد در تیمار مخلوط دوباکتری و سطح کودی 50 درصد بهدست آمد. | ||
| کلیدواژه‌ها | ||
| باکتری محرک رشد گیاه؛ عملکرد؛ کلروفیل؛ کود شیمیایی؛ گندم | ||
| عنوان مقاله [English] | ||
| Effect of Plant Growth Promoting Bacteria on Soil Available Iron and Its Uptake by Wheat | ||
| نویسندگان [English] | ||
| Akbar Ghadamkhani1؛ Naeema Enayatizamir2؛ Mojtaba Norouzi Masir2 | ||
| چکیده [English] | ||
| Abstract There is a available iron deficit for the plant in most of the country cultivated lands. On the other hand, some bacteria that stimulate plant growth can increase the access of the elements to the plant. In the present study, the effect of plant growth promoting bacteria (PGPB) on exchangeable iron in soil and some characteristics of wheat (Chamran cultivar) were investigated in a completely randomized design with factorial arrangement in greenhouse.Treatments consisted of four levels of bacteria, without inoculation (control), inoculation with Enterobacter cloacae R33, inoculation with Enterobacter cloacae sug R_1, inoculation with both E. cloacae R33 and E. cloacae sug R_1) and three levels of FeSO4 (0 %, 50 % and 100 % of iron requirement). During the experiment, characteristics such as plant height and chlorophyll index were measured. According to the results the lowest amount of pH and the highest amount of soil exchangeable iron were observed in the treatment containing consortium of bacteria and application of 50 percent of plant iron requirement. Maximum grain yield with 26 percent increment was observed in the treatment containing consortium of bacteria and application of 50 percent of plant iron requirement. Maximum grain iron concentration and its uptake were also obtained under treatment of bacteria consortium and 50 percent of plant iron requirement by 172 and 50 percent over the control. | ||
| کلیدواژه‌ها [English] | ||
| Chemical fertilizer, Chlorophyll, PGPR, Wheat, Yield | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 64 تعداد دریافت فایل اصل مقاله: 171 |
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