| Titre : |
Breeding for resistance to sorghum midge at ICRISAT Asia Center |
| Type de document : |
texte imprimé |
| Auteurs : |
Belum V.S. Reddy, Auteur ; H.C. Sharma, Auteur ; J.W. Stenhouse, Auteur |
| Année de publication : |
1995 |
| Importance : |
p 159-169 |
| Langues : |
Anglais (eng) |
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
ASIE RESISTANCE A LA CECIDOMYIE SORGHO INSECTE NUISIBLE |
| Résumé : |
Serghum bicolor is grown widely in the semi-arid tropics for food. The sorghum midge, Contarinia sorghicola, is one of the major pests that attack developing sorghum ovules causing chaffy sterile florets. Breeding for host-plant resistance to midge is considered an integrated part of achieving and maintaining higher yield levels.
In this paper, we summarize work related to screening techniques, identification of stable source lines and mechanisms and inheritance of resistance and breeding methods for improving restorers and female lines for resitance, grain yield and other agronomic traits. To a large extent, we have achieved the transfer of resistance into high-yielding backgrounds. However, pedigree analysis shows that the improved lines have mostly received resistance genes from a single parent. The need to diversify resistance sources used in breeding programs is emphasized.
|
| Numéro du document : |
A 96000/H00 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
PROTECTION DES VEGETAUX |
| Bull2 (Theme secondaire) : |
RAVAGEURS DES PLANTES |
Breeding for resistance to sorghum midge at ICRISAT Asia Center [texte imprimé] / Belum V.S. Reddy, Auteur ; H.C. Sharma, Auteur ; J.W. Stenhouse, Auteur . - 1995 . - p 159-169. Langues : Anglais ( eng)
| Catégories : |
SCIENCES AGRICOLES
|
| Mots-clés : |
ASIE RESISTANCE A LA CECIDOMYIE SORGHO INSECTE NUISIBLE |
| Résumé : |
Serghum bicolor is grown widely in the semi-arid tropics for food. The sorghum midge, Contarinia sorghicola, is one of the major pests that attack developing sorghum ovules causing chaffy sterile florets. Breeding for host-plant resistance to midge is considered an integrated part of achieving and maintaining higher yield levels.
In this paper, we summarize work related to screening techniques, identification of stable source lines and mechanisms and inheritance of resistance and breeding methods for improving restorers and female lines for resitance, grain yield and other agronomic traits. To a large extent, we have achieved the transfer of resistance into high-yielding backgrounds. However, pedigree analysis shows that the improved lines have mostly received resistance genes from a single parent. The need to diversify resistance sources used in breeding programs is emphasized.
|
| Numéro du document : |
A 96000/H00 |
| Niveau Bibliographique : |
2 |
| Bull1 (Theme principale) : |
PROTECTION DES VEGETAUX |
| Bull2 (Theme secondaire) : |
RAVAGEURS DES PLANTES |
|
Affiner la recherche Interroger des sources externes
