Virus Diseases of Faba Beans in Manitoba and Their Effects on Plant Growth and Yield

Frowd, J. A.; Bernier, C. C.

doi:10.4141/cjps77-122

Cited by 14 publications

(4 citation statements)

References 2 publications

(2 reference statements)

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“…Such values are similar to previous reports for plants infected at pre-or earlybloom, e.g. 59-96% yield decreases have been recorded for BYMV (Frowd & Bernier. 1977), 76 to 89% for EAMV (Cockbain.…”

Section: Discussionsupporting

confidence: 92%

“…Faba bean {Vicia faba L.) is susceptible to a number of viruses that cause substantial yield losses in this crop in Europe (Cockbain, 1980), the Middle East (Kaiser, 1973;Bos, 1982), the Sudan (Nour & Nour, 1962) and Nonh America (Frowd & Bernier, 1977). Htecreases in yield have usually been deternined at harvest using parameters such as ?od number and seed weight per plant, number of seeds per pod and the weight of individual seeds (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Htecreases in yield have usually been deternined at harvest using parameters such as ?od number and seed weight per plant, number of seeds per pod and the weight of individual seeds (e.g. Frowd & Bernier, 1977). Such data assess the impact of virus infection on crop productivity but provide limited information on those effects of the viruses on host growth and development which lead to these yield reductions.…”

Section: Introductionmentioning

confidence: 99%

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Virus infection and reproductive losses in faba bean (Vicia faba L.)

Bailiss

Senananyake

1984

Plant Pathology

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The viruses, bean yellow mosaic (BYMV), Echtes Ackerbohnenmosaik (EAMV) and bean (pea) leaf roll (BLRV) reduced seed yield in faba bean particularly when plants were infected at the pre‐and mid‐bloom stage. EAMV and BYMV, but not BLRV, delayed senescence and increased branching on glasshouse‐grown plants so that more inflorescences were produced on diseased plants; most of the additional flower buds necrosed. All three viruses increased the proportion of flower buds that became necrotic thus reducing the number of mature flowers available for pollination. This, together with enhanced abscission of recently set flowers, diminished pod production. Flower set per se was unaffected by infection. The number of ovule sites per pod and weight of individual mature seeds were also unaffected by these diseases but productivity per pod declined because of increased ovule abortions. Patterns of pod production on the inflorescence and location of mature seeds within the pod were unaffected by virus infection.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Virus infection and reproductive losses in faba bean (Vicia faba L.)

Bailiss

Senananyake

1984

Plant Pathology

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“…Nodule weight decreased by 18.5-34.4%. The effects of the time of infection have also been reported for other viruses (Franz et al 1997;Frowd and Bernier 1977;Tu 1970;Tu and Ford 1984). Naturally occurring PNYDV foci are attributable to single infections by alate aphids, introduced in the core and spread over time from plant to plant, resulting in the perimeter (Saucke et al 2019).…”

Section: Nodule Number and Weightsupporting

confidence: 53%

Impact of Pea necrotic yellow dwarf virus (PNYDV) on nodulation, N2 fixation and yield in faba bean (Vicia faba, L.)

2022

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Pea necrotic yellow dwarf virus (PNYDV) is a novel nanovirus in Europe, affecting various grain legumes. The impact of PNYDV on nodulation, symbiotic N2 fixation and yield parameters in faba bean (Vicia faba L.) was investigated at controlled conditions in the greenhouse (2017), on-farm in natural infection foci (2018, 2019) and in a small-scale field experiment (2020). In the latter, the standard variety ‘Fuego’ was compared with the variety ‘GL Sunrise’ in early and late infections. In addition, the analogous effects for Pea enation mosaic virus (PEMV) were investigated under greenhouse conditions and the naturally occurring virus spectrum was recorded on-farm and in the field experiment. Results showed a much more severe impact of PNYDV than PEMV on nodulation, leghemoglobin status, N2 fixation and finally yield, especially in early infections. Although ‘GL Sunrise’ was rated for a less symptomatic field performance toward PNYDV than ‘Fuego’, it showed a similar susceptibility in our field experiment where PNYDV was artificially inoculated to individual plants. Further research on the effect of plant varieties on susceptibility toward PNYDV infection and its spread in single or co-infection mainly with PEMV as a function of climate change acting upon their common aphid vector is required.

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