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ارزیابی شماری از رگه های سویا نسبت به نماتد سیستی سویا (Heterodera glycines) در شرایط کنترل شده و کشتزار

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه گیاهپزشکی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان

2 بخش تحقیقات نماتدشناسی، مؤسسۀ تحقیقات گیاه‌پزشکی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

3 مجتمع تکاتو شرکت توسعۀ کشت دانه‌های روغنی

4 گروه گیاه پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

چکیده

نماتد سیستی سویا Heterodera glycines یکی از مهم‌ترین بیمارگرهای محدودکنندۀ عملکرد سویا (Glycine max (L.) Merr.) در بسیاری از کشورهای تولیدکنندة این محصول به شمار می‌آید. کاربرد منابع مقاومت یکی از روش­های مؤثر در کنترل نماتد سیستی سویا است. در این بررسی، به‌منظور شناسایی رگه (لاین)­های مقاوم، واکنش 63 رقم و رگۀ سویا نسبت به نماتد سیستی سویا در شرایط اتاقک رشد و کشتزار بررسی شد. حساسیت یا مقاومت رگه­ها بر پایۀ شاخص نماتد مادۀ (Female Index) در رگۀ موردبررسی و رقم حساس استاندارد لی 74 به‌صورت درصد تعیین شد. نتایج آزمون‌های صحرایی نشان داد که از بین رگه­های موردآزمایش، 5 رگه به‌طور کامل مقاوم، 14 رگه به نسبت مقاوم، 22 رگه به نسبت حساس و 22 رگه به‌طور کامل حساس بودند. بیشتر رگه‌های دارای واکنش مقاوم و به نسبت مقاوم، دورگ‌های ناشی از تلاقی رقم مقاوم کتول (DPX) نسبت به نماتد سیستی سویا با رقم‌های رایج سویا بودند. با کشت رگه­های دارای واکنش مقاوم و به نسبت مقاوم، در اتاقک رشد و مقایسة واکنش آن­ها نسبت به رقم حساس استاندارد، نتایج آزمایش‌های صحرایی تأیید شد.

کلیدواژه‌ها


عنوان مقاله [English]

Evaluation of some soybean lines to soybean cyst nematode (Heterodera glycines) under control conditions and field

نویسندگان [English]

  • Somayeh Dehghanzadeh 1
  • Zahra Tanha Maafi 2
  • Kamran Rahnama 1
  • Alizaman Mirabadi 3
  • Ramin Heydari 4
1 Department of Plant Pathology, Gorgan University of Agricultural Sciences, Gorgan, Iran
2 Department of Nematology, Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
3 Tekato Complex, Oilseeds Improvement Company
4 Department of Plant Protection, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
چکیده [English]

The soybean cyst nematode (Heterodera glycine Ichinohe, SCN) is one of the most serious yields limiting pathogen on soybean (Glycine max (L.) Merr) which is found in many soybean–growing regions throughout the world. Applying of resistant sources is one of the efficient measures to manage this nematode. In this study, reaction of 63 soybean lines to the soybean cyst nematode were evaluated in field and growth chamber conditions. Host resistance was determined on the basis of female index (i.e., number of female developed on the tested lines / number of female on the standard susceptible cultivar Lee 74 as percentage). The results demonstrated that five lines were defined as resistant, whereas 14 lines with FI 10 to 29 were considered as moderate resistance. Subsequently, 22 lines were demonstrated as moderately susceptible and 22 lines were characterized as susceptible lines. The lines which showed resistance and moderate resistance in field conditions were selected for assay under control conditions. The results of pot experiments conducted under control conditions verified the field findings.

کلیدواژه‌ها [English]

  • female index
  • Heterodera glycines
  • Resistance
  • soybean
  • Susceptibility
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