Evaluation of resistance of some hybrid rices, conventional early indica and late japonica rice to Magnaporthe grisea in China

Shen Ying, Adreit Henri, Zhu Xu-Dong, Milazzo Joëlle, Chen Hong-Qi, Tharreau Didier. 2004. Evaluation of resistance of some hybrid rices, conventional early indica and late japonica rice to Magnaporthe grisea in China. Scientia Agricultura Sinica, 37 (3) : 362-369.

Titre chinois : En chinois

Résumé : Thirty isolates of Magnaporthe grisea collected from 18 provinces/cities of China representing 12 pathotypes and 9 different lineages were chosen for pathogenicity test with artificial inoculation on some rice varieties with known resistance genes, of hybrid rice, and conventional early indica and late japonica varieties cultivated in China since the 1990's. Virulence spectrum of the 30 isolates tested was very different, showing that they recognize numerous different resistance genes. Varieties also revealed very different resistance patterns showing that they carry different resistance genes or combinations of resistance genes. On the basis of comparisons with international differential varieties with known resistance genes, the presence of these resistance genes in certain Chinese varieties could be speculated. The results indicated that some varieties were resistant to most of the isolates tested and that they could be of interest as resistance sources for hybrid parents or to be planted in the field directly.

Mots-clés Agrovoc : Oryza, Magnaporthe grisea, maladie fongique, résistance aux maladies, hybride, gène, pouvoir pathogène, variété

Mots-clés géographiques Agrovoc : Chine

Classification Agris : H20 - Maladies des plantes

Auteurs et affiliations

• Shen Ying, CNRRI (CHN)
• Adreit Henri, CIRAD-AMIS-PROTECTION DES CULTURES (FRA)
• Zhu Xu-Dong, CNRRI (CHN)
• Milazzo Joëlle, CIRAD-AMIS-PROTECTION DES CULTURES (FRA)
• Chen Hong-Qi, CNRRI (CHN)
• Tharreau Didier, CIRAD-CA-CALIM (FRA) ORCID: 0000-0003-3961-6120

Source : Cirad - Agritrop (https://agritrop.cirad.fr/519961/)

Métriques

[ Page générée et mise en cache le 2024-04-05 ]