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بررسی مقاومت برخی لاین های گندم سیمیت نسبت به بیماری لکه خرمایی | ||
| دانش گیاهپزشکی ایران | ||
| دوره 54، شماره 1، شهریور 1402، صفحه 33-46 اصل مقاله (1.02 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijpps.2023.354472.1007019 | ||
| نویسندگان | ||
| مژگان قربی1؛ حسن مومنی* 2؛ ورهرام رشیدی1؛ فهیمه نظری3؛ علیرضا احمدزاده4 | ||
| 1گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی تبریز، ایران. | ||
| 2بخش تحقیقات بیماریهای گیاهی، موسسه تحقیقات گیاهپزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران. | ||
| 3بخش تحقیقات بیماریهای گیاهی، موسسه تحقیقات گیاهپزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران | ||
| 4گروه زراعت و اصلاح نباتات، دانشگاه آزاد اسلامی شبستر، ایران | ||
| چکیده | ||
| بیماری لکهخرمایی ناشی از قارچ بیماریزای Pyrenophora tritici-repentis یک بیماری مخرب در مناطق تولید گندم در دنیا است. این بیماری در استان‌های گلستان، مازندران و مناطق شمالی استان اردبیل از شیوع و گستردگی بالایی برخوردار است. به دلیل عدم وجود ارقام مقاوم مناسب در کشور خسارت بیماری بالاست. در این تحقیق ارزیابی مقاومت 50 لاین گندم متعلق به خزانه 9HLBSN مرکز بین المللی تحقیقات ذرت و گندم سیمیت نسبت به نژاد یک عامل بیماری لکهخرمایی مورد بررسی قرار گرفت. با وادار کردن جدایههای قارچی به تولید کنیدیومهای فراوان، استقرار آلودگی روی گیاهچه‌های گندم از طریق مایه‌زنی سوسپانسیون کنیدیومهای قارچ انجام گرفت. نتایج این تحقیق نشان داد که لاینهای شماره 1، 17، 18، 22، 25، 29، 33، 34، 35، 36، 37، 38، 44، 45 و 47 واکنش حساسیت و سایر لاینها که معادل 70% لاینهای مورد بررسی بود، واکنش مقاومت نشان دادند. ضمنا میانگین شاخص بیماری در لاینهای مختلف محاسبه و مقایسه گردید. از نظر میانگین شاخص بیماری روی لاینهای مورد ارزیابی، 13 گروه بهدست آمد که به ترتیب دارای 8، 8، 8، 4، 3، 5، 12، 23، 24، 28، 28، 26 و 22 عضو بودند. با توجه به حساسیت اغلب ارقام تجاری کشور به این بیماری، لاینهای مقاوم به دست آمده در این تحقیق منابع مقاومت خوبی برای استفاده در برنامه‌های به‌نژادی گندم هستند. | ||
| کلیدواژه‌ها | ||
| Pyrenophora tritici-repentis؛ ارزیابی؛ بیمارگر؛ گندم؛ مقاومت | ||
| عنوان مقاله [English] | ||
| Evaluation the resistance of some CIMMYT wheat lines to tan spot disease | ||
| نویسندگان [English] | ||
| Mojgan Ghorbi1؛ Hassan Momeni2؛ Varahram Rashidi1؛ Fahimeh Nazari3؛ Alireza Ahmadzadeh4 | ||
| 1Department of Agronomy and Plant Breeding, Islamic Azad University, Tabriz, Iran. | ||
| 2Plant Diseases Research Department, Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran. | ||
| 3Plant Diseases Research Department, Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran | ||
| 4Department of Agronomy and Plant Breeding, Islamic Azad University, Shabestar, Iran | ||
| چکیده [English] | ||
| Tan spot disease caused by Pyrenophora tritici-repentis is a destructive disease in wheat production areas around the world. The disease has a high prevalence and distribution in the Golestan, Mazandaran, and northern regions of Ardabil province. Due to the lack of suitable resistant varieties in Iran, the damage caused by the disease is high. In this study, the evaluation of 50 wheat lines resistance belonging to the 9HLBSN treasury of the International Maize and Wheat Research Center (CIMMYT) was investigated using race1 of the pathogen. By inducing the fungal isolates to produce abundant conidia, the infection was established in the wheat seedlings through inoculation of the suspension of fungal conidia. The results of this study demonstrated that lines number 1, 17, 18, 22, 25, 29, 33, 34, 35, 36, 37, 38, 44, 45, and 47 had a susceptible reaction, and other lines which included 70% of investigated lines, were resistant. In addition, the mean disease index in different lines was calculated and compared. In terms of the mean disease index on the evaluated lines, 13 groups were obtained, which had 8, 8, 8, 4, 3, 5, 12, 23, 24, 28, 28, 26, and 22 members, respectively. Considering the susceptibility of most of the country's commercial cultivars to this disease, the resistant lines obtained in this study are good sources of resistance to be used in the breeding programs of wheat. | ||
| کلیدواژه‌ها [English] | ||
| Pyrenophora tritici-repentis, Evaluation, Pathogen, Wheat, Resistance | ||
| مراجع | ||
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