VARIATION IN THE RESISTANCE OF BARLEY CULTIVARS AND IN THE PATHOGENICITY OF DRECHSLERA-TERES F SP MACULATA AND D TERES F SP TERES ISOLATES FROM FRANCE

被引:44
作者
ARABI, MI [1 ]
BARRAULT, G [1 ]
SARRAFI, A [1 ]
ALBERTINI, L [1 ]
机构
[1] ECOLE NATL SUPER AGRON TOULOUSE,FAC AGR,DEPT PLANT BREEDING,F-31076 TOULOUSE,FRANCE
关键词
D O I
10.1111/j.1365-3059.1992.tb02336.x
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Isolates of Drechslera teres that cause net or spot-type symptoms on barley (Hordeum vulgare) were collected in 1986 and 1987 from fields in different regions of France. Variations in pathogenicity were evaluated using 12 barley cultivars. The Middle-Eastern cultivars Arrivate and 79-S1O-10 were resistant to all isolates except R5 and S5. The Ethiopian cultivar Cl 5791, previously reported to be resistant, was susceptible to the R5 and S5 biotypes. There was a high correlation coefficient between the classification of cultivars for resistance to D. teres f. sp. teres and D. teres f. sp. maculata. A method for conserving the virulence of the isolates on straw is evaluated. The virulence level of the isolates was the same after 4 years of storage using this method.
引用
收藏
页码:180 / 186
页数:7
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