Article (Scientific journals)
Assessing cultivar resistance to Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae) using a phenotyping method under semi-field conditions
Chavalle, Sandrine; Jacquemin, Guillaume; De Proft, Michel
2017In Journal of Applied Entomology
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Keywords :
cultivar resistance; host plan resistance; orange wheat blossom midge; Sitodiplosis mosellana; wheat
Abstract :
[en] The orange wheat blossom midge, Sitodiplosis mosellana (Géhin), can significantly reduce wheat yield. Growing resistant wheat cultivars is an effective way of managing this pest. The assessment of cultivar resistance in field trials is difficult because of unequal pressure of S. mosellana caused by differences in cultivar heading dates relative to the flight period of S. mosellana adult females and huge variations of egg laying conditions from 1 day to another. To overcome these hurdles and to expose all cultivars homogeneously to the pest, an assessment method of cultivar resistance was developed under semi-field conditions. In 2015, the resistance of 64 winter wheat cultivars to S. mosellana was assessed. Few or no larvae developed in the ears of resistant cultivars, but in susceptible cultivars, large numbers of larvae developed. Seventeen cultivars proved to be resistant, whereas 47 were susceptible. The identification of new resistant cultivars offers more opportunities to manage S. mosellana. The phenotyping method is easy, cheap, efficient and reliable. It can be used to guide the breeding of new resistant wheat cultivars. Using specific midge populations, this method could also be used in research on new resistance mechanisms in winter wheat or in other cereal species.
Disciplines :
Agriculture & agronomy
Author, co-author :
Chavalle, Sandrine ;  Centre wallon de Recherches agronomiques (CRA-W) > Département Sciences du Vivant > Unité Protection des Plantes et Ecotoxicologie
Jacquemin, Guillaume;  CRA-W
De Proft, Michel;  CRA-W
Language :
English
Title :
Assessing cultivar resistance to Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae) using a phenotyping method under semi-field conditions
Publication date :
2017
Journal title :
Journal of Applied Entomology
ISSN :
0931-2048
eISSN :
1439-0418
Publisher :
Wiley, Berlin, Germany
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 12 May 2017

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