Pathogenic races of Tilletia laevis - the causal agent of wheat common bunt in Iran
Material type: TextPublication details: Tbilisi (Georgia) CIMMYT : 2004Description: p. 271Subject(s): DDC classification:- 633.1147 BED
Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
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Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | 633.1147 BED (Browse shelf(Opens below)) | 1 | Available | 1K630072 |
Abstract only
To identify races of Tilletia laevis, several infected samples of wheat were collected from important wheat grown areas of Iran. Seeds of the differential monogenic and oligogenic lines were artificially infected with teliospores of different samples and grown in the field. At harvesting time, percentage of infected spikes was assessed for each line, and races of each sample were determined using standard method. According to the results, five isolates which were virulent to Bt7 were determined as race L-l , four isolates having virulence on Bt2 and Bt7 determined as L-3, two isolates with virulence on Btl and Bt7 determined as L-4, eight isolates virulent on Bt2, Bt3and Bt7 determined as L-I0 and one isolate with virulence on Bt2, Bt3, Bt4, Bt6 and Bt7 as race L-17 . Genes Bt2, Bt3, Bt7 were susceptible to the most of isolates therefore are not recommended to be used in breeding programs, Bt8, Bt9, Bt13 were susceptible to some isolates. Genes Btl , Bt4, Bt6 (except one race), Bt5, Btl0, Bt11, Bt12, Bt14 and Btp were resistant to all identified races; these genes will be effective for development of resistant cultivars in different parts of the country.
English
0408|AGRIS 0401|AL-Wheat Program
Juan Carlos Mendieta
CIMMYT Publications Collection