Assessing cultivar resistance to Sitodiplosis mosellana (Géhin) (Diptera: Cecidomyiidae) using a phenotyping method under semi-field conditions
| Autor: | M. De Proft, Sandrine Chavalle, G. Jacquemin |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Larva biology fungi food and beverages Orange (colour) biology.organism_classification 01 natural sciences Sitodiplosis mosellana 010602 entomology Agronomy Cecidomyiidae Insect Science Midge PEST analysis Cultivar Agronomy and Crop Science 010606 plant biology & botany Field conditions |
| Zdroj: | Journal of Applied Entomology. 141:780-785 |
| ISSN: | 0931-2048 |
| Popis: | The orange wheat blossom midge, Sitodiplosis mosellana (Gehin), 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text