Performance and reaction of faba bean genotypes to chocolate spot disease

Abstract Background This study aimed to development new faba bean hybrids resistant to chocolate spot disease and using them in breeding programs. Six faba bean genotypes were crossed in a diallel system excluding reciprocals during three growing seasons of 2017/18, 2018/19 and 2019/20 growing seasons. Results Results scored high variability among genotypes (parents and their crosses) in most studied characters. All characters were affected by inbreeding and most crosses recorded high significant in all characters especially the positive significance of resistance to chocolate spot disease (gain) was 5 for all studied resistance characters. Conclusions All studied plant growth and yield characters were affected negatively by chocolate spot disease. Moreover, it can be concluded that the commercial cost of producing hybrid seed can be reduced by growing F1 or directly.

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Application of benzothiadiazole and Trichoderma harzianum to control faba bean chocolate spot disease and their effect on some physiological and biochemical traits

Acta Physiologiae Plantarum ◽

10.1007/s11738-013-1416-5 ◽

2013 ◽

Vol 36 (2) ◽

pp. 343-354 ◽

Cited By ~ 5

Author(s):

Saieda S. Abd El-Rahman ◽

Heba I. Mohamed

Keyword(s):

Faba Bean ◽

Trichoderma Harzianum ◽

Biochemical Traits ◽

Spot Disease ◽

Chocolate Spot ◽

Chocolate Spot Disease ◽

Physiological And Biochemical

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Biocontrol of chocolate spot disease (Botrytis cinerea) in faba bean using endophytic actinomycetes Streptomyces: a field study to compare application techniques

PeerJ ◽

10.7717/peerj.8582 ◽

2020 ◽

Vol 8 ◽

pp. e8582

Author(s):

Sahar A. El-Shatoury ◽

Fuad Ameen ◽

Heba Moussa ◽

Omar Abdul Wahid ◽

Ahmed Dewedar ◽

...

Keyword(s):

Sustainable Agriculture ◽

Botrytis Cinerea ◽

Faba Bean ◽

Control Technique ◽

Disease Symptoms ◽

Spot Disease ◽

Link Type ◽

Chocolate Spot ◽

Medical Plants ◽

Chocolate Spot Disease

Sustainable agriculture is needing economic applications for disease control. One possibility is offered by local medical plants. Endophytes of medical plants, such as actinomycetes Streptomyces sp. have previously shown antagonistic activities against fungal phytopathogens. In the present field experiment, we aimed to verify the efficiency of endophytic Streptomyces against one of the common pathogens, Botrytis cinerea, causing chocolate spot disease for faba bean (Vicia fabae L.). We tested two strains of Streptomyces (MG788011, MG788012) and three techniques to apply the biocontrol agent: (1) coating the seeds with spores, (2) spraying mycelia and (3) spraying the crude metabolites over the plants. The technique using the crude metabolites was the most efficient to prevent the disease symptoms. Both of the endophytic strains diminished the disease symptoms and improved the plant growth. The study offers a potential biological control technique to prevent chocolate spot disease and, at the same time, increase the yields of faba bean in sustainable agriculture.

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