نتایج جستجو برای: u tritici
تعداد نتایج: 166561 فیلتر نتایج به سال:
کشت گندم به شیوه بیخاک ورزی در چند سال اخیر در استان فارس متداول شده است. یکی از اشکال های این سامانهی کشت، امکان طغیان گونههایی از آفات خاکزی است. این پژوهش در فصل زراعی 1391-1390 در شهرستان مرودشت انجام شد. نمونه برداری در چهار مرحله اصلی رشد گندم شامل پنجه زنی، ساقه رفتن، خوشه رفتن و تشکیل دانه صورت گرفت. وسایل نمونه برداری شامل کارت زرد چسبی، دستگاه مکش ( دیوک) و تله خاکی بودند. در ک...
The hypersensitive reaction in incompatible wheat-rust interactions is characterized by an increase in lipoxygenase activity detectable as early as 28 h after penetration o f the pathogen. In contrast, lipoxygenase activity in the compatible interaction did not increase until the onset of sporulation. Lipoxygenase activity also increased following treatment o f wheat leaves with an elicitor fra...
El desarrollo de variedades trigo (Triticum aestivum L.) debe considerar, además alta capacidad rendimiento, otros caracteres importantes como la resistencia genética a enfermedades. objetivo este trabajo fue evaluar en harinero planta adulta roya lineal (Puccinia striiformis f. sp tritici Wensted.) y hoja recondita Rob. Ex. Desm. sp. tritici), familias F5 provenientes siete ciclos selección re...
A fungus Pyrenophora tritici-repentis induces tan spot of wheat which is a foliar disease that causes yield loss to wheat crops worldwide. In this study, a new, simple and non-costly technique was performed to produce the sexual stage of this fungus in culture, within 9 weeks using wheat straw. This protocol will be helpful to researchers studying the biology of sexual stage development, diseas...
Aim of study: Septoria tritici blotch (STB), caused by the fungus Zymoseptoria tritici, is one most important wheat diseases worldwide, affecting both bread and durum wheat. The lack knowledge about interaction with Z. together limited resources resistant material, have led to a rising threat for cultivation, particularly in Mediterranean Basin. In Spain, STB has increased its incidence last fe...
the 1rs chromosome segment derived from petkus rye carries genes for resistance to three wheat rust diseases, namely lr26 for resistance to leaf rust (caused by puccinia triticina), yr9 for resistance to stripe rust (p.striiformis f. sp. tritici) and sr31 for resistance to stem rust (p. graminis f. sp. tritici). since sec-1 is tightly linked with the three rust resis-tance genes electrophoresis...
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