Citation
Poswal M.A.T., . (1990) Progress in breeding cotton cultivars resistant to bacterial blight in Nigeria. [Proceedings Paper]
Abstract
Bacterial blight of cotton is the most economically important disease of cotton in Nigeria. The disease is estimated to cause an annual yield loss of 10-20 percent. The development and use of resistant cultivars is the most economic means of disease control. Breeding cotton cultivars resistant to bacterial blight has been an integral part of the cotton improvement programme in Nigeria. Over the last 60 years eight commercial cultivars varying in levels of resistance to bacterial blight were released. The current two commercial cultivars Samaru 71 and Samaru 77 are presently susceptible to the evolution of virulent strains of the pathogen. Over the past two decades six cotton hybrid pools ASA AASA ACSA RSA RASA and SMSA were developed and now form the genetic pool for the current cotton varietal improvement programme. Advanced breeding lines with improved levels of bacterial blight resistance yield and fibre qualities have been identified within some of the hybrid pools. The recent introductions of the short-seasoned multi-adversity resistant MAR cotton from Texas U.S.A. and the cultivar S295 from Chad will be valuable in reinforcing and enhancing the progress in developing cotton cultivars resistant to bacterial blight other diseases insect pests and environmental stresses in Nigeria
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Abstract
Bacterial blight of cotton is the most economically important disease of cotton in Nigeria. The disease is estimated to cause an annual yield loss of 10-20 percent. The development and use of resistant cultivars is the most economic means of disease control. Breeding cotton cultivars resistant to bacterial blight has been an integral part of the cotton improvement programme in Nigeria. Over the last 60 years eight commercial cultivars varying in levels of resistance to bacterial blight were released. The current two commercial cultivars Samaru 71 and Samaru 77 are presently susceptible to the evolution of virulent strains of the pathogen. Over the past two decades six cotton hybrid pools ASA AASA ACSA RSA RASA and SMSA were developed and now form the genetic pool for the current cotton varietal improvement programme. Advanced breeding lines with improved levels of bacterial blight resistance yield and fibre qualities have been identified within some of the hybrid pools. The recent introductions of the short-seasoned multi-adversity resistant MAR cotton from Texas U.S.A. and the cultivar S295 from Chad will be valuable in reinforcing and enhancing the progress in developing cotton cultivars resistant to bacterial blight other diseases insect pests and environmental stresses in Nigeria
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | 5 tables; 15 refs. Summary En |
| AGROVOC Term: | GOSSYPIUM |
| AGROVOC Term: | CONTROL DE ENFERMEDADES |
| AGROVOC Term: | TIZON |
| AGROVOC Term: | RESISTENCIA A LA ENFERMEDAD |
| AGROVOC Term: | NIGERIA |
| AGROVOC Term: | ESTADOS UNIDOS DE AMERICA |
| AGROVOC Term: | CHAD/ FITOMEJORAMIENTO |
| AGROVOC Term: | VARIEDADES NATURALIZADAS |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:26 |
| URI: | http://webagris.upm.edu.my/id/eprint/14876 |
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