Efficacy of nano-silicon in the control of chocolate spot disease of Vicia faba L. caused by Botrytis fabae

Faba bean (Vicia faba L.) is an important legume crop used as a major source of dietary protein for subsistence farmers and of foreign currency for Ethiopia. However, yields have remained low, thus threatening food security. The objectives of this study were to assess major threats to faba bean production, determine farmers’ varietal preferences and selection criteria, and assess farmers’ perceptions of faba bean diseases. Data were collected from 240 households through a survey and participatory rural appraisal methodology. Major threats to faba bean production were chocolate spot disease, which was a persistent problem in the Ethiopian highlands, and lack of improved seed. Many farmers (>85%) recognised symptoms of chocolate spot disease but had various names for it. Disease severity was associated with growing susceptible local landrace varieties which resulted in low yields (0.56 to 2.8 t ha-1). About 66.4% of the farmers preferred local landraces for their adaptability to the environment, tolerance to frost, early maturity, good food taste and straw yield, while improved varieties grown by 10% of the farmers were preferred for high grain yield and bigger grain size. Therefore, opportunities exist to improve the preferred landraces for yield and disease resistance through breeding.

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Synergistic effect of Trichoderma and Rhizobium on Both Biocontrol of Chocolate Spot Disease and Induction of Nodulation, Physiological Activities and Productivity of Vicia faba

Research Journal of Microbiology ◽

10.3923/jm.2009.286.300 ◽

2009 ◽

Vol 4 (8) ◽

pp. 286-300 ◽

Cited By ~ 13

Author(s):

W.I.A. Saber ◽

K.M. Abd El-Hai ◽

K.M. Ghoneem

Keyword(s):

Synergistic Effect ◽

Vicia Faba ◽

Spot Disease ◽

Chocolate Spot ◽

Chocolate Spot Disease

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Screening of Faba Bean (Vicia faba L.) Germplasm Accessions against Grey Mould Disease Caused by Botrytis fabae Sard

Agricultural Science Digest - A Research Journal ◽

10.18805/ag.d-265 ◽

2020 ◽

Author(s):

Ibrahim Elkhalil Benzohra ◽

Hakima Belaidi

Keyword(s):

Vicia Faba ◽

Faba Bean ◽

Grey Mould ◽

Grain Legume ◽

Sources Of Resistance ◽

Significant Difference ◽

Botrytis Fabae ◽

Vicia Faba L ◽

Faba Beans ◽

Chocolate Spot Disease

Background: Faba bean (Vicia faba L.) is thirst most important grain legume in the world and the first one in Algeria. The chocolate spot disease caused by Botrytis fabae Sard (BF), is the major constraint of this culture in Algeria when caused a destructive damages.Methods: The aim of this study is to find the sources of resistance for Seven varieties of faba beans (Giza 02, Giza 40, Giza 461, Sakha 02, Sakha 03, Precoce de Seville), by using the detached leaflet inoculation test for resistance to the two isolates from BF represent two different regions of northwest Algeria (Mascara and Relizane). Result: A significant difference (P less than 0.05) was observed in the reaction of the varieties which manifest themselves by a different reaction vis-à-vis the isolates of BF. Total sensitivity was observed in the four (4) varieties Giza02, Sakha01, Sakha02 and Sakha03, two (2) varieties (Giza40 and Ziban), are tolerant, while the variety named ‘Precoce de Seville’ showed significant resistance to both isolates from BF. These results showed a similar pathogenic behavior of two isolates of BF and variability in the level of reactions of the varieties of beans. The variety ‘Precoce de Seville’ showed promising results to be valued and cultivated in order to reduce the damage caused by this disease and reduce the use of chemicals.

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