We'd like to understand how you use our websites in order to improve them. Register your interest. Faba bean Vicia faba L. One of the major fungal pathogens of faba bean is Botrytis fabae , the causative agent of chocolate spot. The disease affects significantly the leaf, stem, pod and seed of faba bean compromise its productivity in the smallholder farming sector. Therefore, it was prudent to evaluate faba bean landraces for chocolate spot resistance.
|Published (Last):||18 June 2012|
|PDF File Size:||10.57 Mb|
|ePub File Size:||18.10 Mb|
|Price:||Free* [*Free Regsitration Required]|
We'd like to understand how you use our websites in order to improve them. Register your interest. Faba bean Vicia faba L. One of the major fungal pathogens of faba bean is Botrytis fabae , the causative agent of chocolate spot. The disease affects significantly the leaf, stem, pod and seed of faba bean compromise its productivity in the smallholder farming sector.
Therefore, it was prudent to evaluate faba bean landraces for chocolate spot resistance. Fifty landraces together with ten improved varieties were evaluated both in the field and in the greenhouse under natural and artificial inoculation with previously selected aggressive Botrytis fabae isolate Iso from West Gojjam, in Ethiopia. Significant positive correlation was recorded between reaction of genotypes in the field and greenhouse disease data.
The overall mean disease epidemics varied from Of all 18 landrace collections displayed significantly lower disease reaction than the susceptible check. However the resistance was moderate. The selected eighteen landraces will be recommended for use in breeding for chocolate resistance. Overall, resistance was highly heritable, suggesting that phenotypic selection can be exploited to improve chocolate spot resistance in faba bean varieties. This is a preview of subscription content, log in to check access.
Rent this article via DeepDyve. Agegnehu G, Fessehaie R Response of faba bean to phosphate fertilizer and weed control on nitisols of Ethiopian highlands. Ital J Agron — Exp Agric — Plant Pathol — Google Scholar. Euphytica — J Agric Res 50 4 — Plant Dis — Afr J Biotech — CSA Report on area and production of crops. Crop Prot — J Am Sci — Ann Agric Sci — Genetics and breeding research in Ethiopia: a review.
In: Kemal A et al eds Food and forage legumes of Ethiopia: progress and prospects. Gorfu D Morphological, cultural and pathogenic variability among nine isolates of Botrytis fabae from Ethiopia. J Ethiop — Iowa State University Press, Ames. Harrison JG The biology of Botrytis sp p. Physiol Plant Pathol — Plant Sci —— Egypt J Agric Res — Technical Manual No. Ethiopian Institute of Agricultural Research, p Parlevliet JE Components of resistance that reduce the rate of epidemic development.
Annu Rev Phytopathol — Parry D Plant pathology in agriculture. Cambridge University Press, Cambridge. Field Crops Res — Kalyani Publishers, New Delhi, p Robinson RA Return to resistance—breeding crops to reduce pesticide dependence. AgAccess, Davis. Release 9. Schmidtke K, Rauber R Grain legumes and nitrogen cycling in organic crop systems. Grain Legumes — Phytopathology — Theor Appl Genet — Acta Agricalture Scandinavica — Res J Agric Environ Manag — Eur J Plant Pathol — Download references.
Correspondence to Asnakech T. Reprints and Permissions. Beyene, A. Genetic variability of faba bean genotypes for chocolate spot Botrytis fabae resistance and yield. Euphytica , Download citation. Received : 02 November Accepted : 03 July Published : 12 July Search SpringerLink Search. Abstract Faba bean Vicia faba L. Immediate online access to all issues from Subscription will auto renew annually.
References Agegnehu G, Fessehaie R Response of faba bean to phosphate fertilizer and weed control on nitisols of Ethiopian highlands. Ethiopian Institute of Agricultural Research, p 48 Parlevliet JE Components of resistance that reduce the rate of epidemic development.
Box 31, Holetta, Ethiopia Asnakech T. Beyene Authors Asnakech T. Beyene View author publications. You can also search for this author in PubMed Google Scholar. View author publications. Electronic supplementary material. Rights and permissions Reprints and Permissions.
About this article. Cite this article Beyene, A.
List of symptoms / signs
Botrytis fabae is a plant pathogen, a fungus that causes chocolate spot disease of broad or fava bean plants, Vicia faba. Chocolate spot disease caused by Botrytis fabae manifests itself as small red-brown spots on leaves , stems and flowers of broad bean plants. These enlarge and develop a grey, dead centre with a reddish-brown margin. Spores form on the dead tissue and spread the infection to other plants. In severe infections leaves and flowers may fall and badly affected stems may keel over. The pathogen survives as sclerotia in the soil or on crop stubble and residues.