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بررسی همزیستی قارچهای مایکوریز آربوسکولار همراه با ریشه پنبه در استان خراسان شمالی | ||
| پژوهش های پنبه ایران | ||
| مقاله 1، دوره 2، شماره 2، آبان 1393، صفحه 1-12 اصل مقاله (509.45 K) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijcr.2015.102020 | ||
| نویسندگان | ||
| هادی شیرزاد1؛ مرتضی قربانی* 2 | ||
| 1دانشجوی سابق کارشناسی‌ارشد، گروه گیاهپزشکی دانشکده کشاورزی دانشگاه زابل | ||
| 2استادیار گروه گیاهپزشکی دانشکده کشاورزی دانشگاه زابل | ||
| چکیده | ||
| به‌منظور بررسی وجود همزیستی قارچهای مایکوریز با ریشه گیاه پنبه، تعیین درصد کلونیزاسیون ریشهها و مشخص کردن وضعیت اسپور این قارچها، بیست و دو نمونه خاک به همراه ریشه از مزارع پنبه مناطق مختلف استان خراسان شمالی جمعآوری گردید. پس از رنگ‌آمیزی ریشهها و استخراج اسپورها از خاک، میزان کلونیزاسیون ریشه و جمعیت اسپور این قارچها اندازهگیری شد. همچنین تاثیر pH خاک بر این عوامل مورد بررسی قرار گرفت. نتایج بدست آمده نشان داد همزیستی مایکوریزی آربوسکولار همراه با ریشه پنبه وجود دارد. در مورد شاخصهای مرتبط با کلونیزاسیون میانگین فراوانی مایکوریزایی (%F) در مناطق مختلف از 95 تا 100 درصد برآورد شد. شاخص تراکم مایکوریزایی (%M) در مناطق سنخواست و آشخانه با میانگین‌های 8/59 و 9/31 به‌ترتیب بالاترین و پایینترین مقدار بود. در مورد شاخص تراکم جمعیت اسپوری بالاترین و پایینترین تراکم در مناطق اسفراین و آشخانه به‌ترتیب با میانگین 9/212 و 2/137 اسپور در 35 گرم خاک خشک بدست آمد. بررسی همبستگی شاخصهای اندازهگیری شده با pH خاک نشان داد که همبستگی شاخص تراکم اسپور با pH در سطح احتمال 05/0 معنی‌دار و از نوع مثبت است. | ||
| کلیدواژه‌ها | ||
| مایکوریز؛ آربوسکولار؛ خراسان شمالی؛ پنبه | ||
| عنوان مقاله [English] | ||
| Survey of Arbuscular Mycorrhizal Fungi symbiosis with cotton root in north khorasan province | ||
| نویسندگان [English] | ||
| H. Shirzad1؛ M. Ghorbany2 | ||
| 11Former M.Sc. Student, Department of Plant Protection, College of Agriculture University of Zabol | ||
| 2Assistant Professor, Department of Plant Protection, College of Agriculture University of Zabol | ||
| چکیده [English] | ||
| To investigation existence of arbuscular mycorrhizal fungi symbiosis with cotton root, determination of root colonization percent and characterization of spore situation, 22 soil and root samples gathered from cotton fields of different areas in north Khorasan province. After root staining and extraction of spores from soil, root colonization and spore population determined, also effect of soil pH on these factors was evaluated. Results showed that all samples have arbuscular mycorrhizal symbiosis. About indices related to colonization, average of mycorrhizal frequency (%F) in different areas was between 95 to 100 percent. Average of mycorrhizal intensity index (%M) in Sankhast and Ashkhaneh areas with 59.8 and 31.9 was maximum and minimum respectively. about spore population density index maximum and minimum was in Esfarayen and Ashkhaneh with 212.9 and 137.2 spores per 35g/dried soil respectively. Correlation of measured indices with pH showed that correlation of spore population density with pH was significant (α = 0.05) and this correlation was positive. | ||
| کلیدواژه‌ها [English] | ||
| mycorrhiza, Arbuscular, North Khorasan, cotton | ||
| مراجع | ||
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