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Arabi, M.I.E.; Al-safadi, B.; Charbaji, T.
Atomic Energy Commission, Damascus (Syrian Arab Republic). Dept. of Molecular Biology and Biotechnology2000
Atomic Energy Commission, Damascus (Syrian Arab Republic). Dept. of Molecular Biology and Biotechnology2000
AbstractAbstract
[en] Isolates of Drechslera teres f. sp. teres that cause net blotch symptoms on barley were collected from fields in different regions of Syria. there virulence spectra were determined using 11 barley cultivars. Cultivars exhibited a continuos range of response from very susceptible to moderately resistant. Isolate Raqa 13 had the highest mean virulence, then Halap 2, whereas ICARDA 3 was the lowest virulent. The effect of three concentrations (1000, 1500, 2000 ppm) of nitrogen (Urea 45%) fertilizer, and two doses of gamma ray (10 and 20 Gy), on susceptibility to infection by Drechslera teres were studied. Two barley cultivars (Thibaut and Furia) were used in this study. Results showed that 1000 ppm (N) and 15 Gy dose treatment had a positive effect on decreasing the susceptibility. (author)
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Nov 2000; 30 p; 32 refs., 15 tabs.
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