A simple method for the evaluation of red clover (Trifolium pratense L) resistance to Sclerotinia trifoliorum

被引:8
|
作者
Delclos, B [1 ]
MoussetDeclas, C [1 ]
Raynal, G [1 ]
机构
[1] INRA,INA,LAB PATHOL VEGETALE,F-78850 THIVERVAL GRIGNON,FRANCE
关键词
red clover; resistance tests; Sclerotinia trifoliorum; selection; Trifolium pratense;
D O I
10.1023/A:1002914002775
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Sclerotinia crown and stem rot is the most destructive disease on red clover in areas with cool seasons including North America and Europe. An artificial inoculation test in controlled conditions has been developed in order to evaluate resistance to this fungus in individual plants. Measured drops of ascospore suspension were applied to detached clover leaflets and disease severity scored on a visual scale. Clovers from 16 cultivars and 12 ecotypes were tested for resistance to Sclerotinia trifoliorum. The results obtained for cultivar resistance are in agreement with those of other tests described in the literature. Moreover, repeated individual evaluations on detached leaflets from the same plant was successful in detecting genotypic variation within clover populations.
引用
收藏
页码:173 / 179
页数:7
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