Transmission of Fusarium graminearum from seed to stems of winter wheat

Duthie, J.; Hall, Robert

doi:10.1111/j.1365-3059.1987.tb02174.x

Cited by 27 publications

(20 citation statements)

References 11 publications

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“…Seedling blight incidence in plantings of Fusariumdamaged spring wheat seed increased as the soil temperature increased during emergence (Jones 1999). In winter wheat trials, Duthie and Hall (1987) reported no seedling blight attributed to Fusarium infection in the fall, whereas Halfon-Meiri et al (1979) reported that seed-borne F. graminearum was more active at high than at low temperatures. Although cold temperatures might inhibit the growth of F. graminearum resulting in better seed germination (Gilbert and Tekauz 1995), seedling emergence from Fusarium-infected seed in the field will be determined by the combined effect of temperature and moisture.…”

Section: Discussionmentioning

confidence: 96%

“…1, plants derived from Fusarium-infected seed that germinated, emerged and survived throughout the early stages of plant growth, whether the seeds had been treated with fungicides or not, developed as many leaves and tillers as those from the uninfected controls. In field trials, Duthie and Hall (1987) also reported no relationship between Fusarium seed infection and number of tillers for the winter wheat plants derived from them. Dry weights of plant tissue were also reported to be similar for seedlings from F. graminearum-damaged than undamaged seed lots (Jones 1999), and were not increased by the use of fungicide seed treatments (Halfon-Meiri et al 1979;Gilbert and Tekauz 1995).…”

Section: Discussionmentioning

confidence: 99%

“…Previous work has indicated that transmission of F. graminearum from infected seed to plants was high but variable. For winter wheat in the field, Duthie and Hall (1987) reported that the efficiency of transmission of this pathogen from seed to stems ranged from 55 to 94%. Germination and emergence of severely infected (chalky) durum wheat seeds in exp.…”

Section: Discussionmentioning

confidence: 99%

“…Seed-to-seedling transmission of F. graminearum was demonstrated by Duthie and Hall (1987), Klein and Burgess (1987), and Halfon-Meiri et al (1979). However, studies have shown no association between seed infection and FHB development in the year the infected seed was planted (Wong et al 1992;Gilbert et al 2003).…”

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confidence: 99%

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Effectiveness of fungicide seed treatments for preventing seed-to-seedling transmission of Fusarium graminearum under controlled-environment conditions

Fernandez¹,

Turkington²,

May³

2009

Can. J. Plant Sci.

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Fusarium head blight (FHB) is well established in the eastern prairies, but for the most part it has been absent from western regions, especially under dryland conditions. This has been largely attributed to dry and hot conditions during some years, and the limited occurrence of F. graminearum in the western prairies. It is of importance to prevent the movement of F. graminearum, the most important FHB pathogen in North America, to areas where this pathogen is not commonly found. Three controlled-environment studies, using different Fusarium-infected common and durum wheat seed lots, were conducted to determine the effectiveness of currently registered fungicide seed treatments in improving seedling emergence and plant development, and preventing the growth of F. graminearum from infected seed to plant tissue. Fungicide treatments improved seedling emergence from the most infected seed over the untreated infected control, but most treatments did not improve emergence in the other experiments. Plant growth in the fungicide treatments was either similar to or slower than in the untreated controls. Fusarium graminearum was isolated from discoloured tissue in all treatments and was generally more common in crowns than in subcrown internodes. No fungicide treatment reduced discolouration of plant tissue or percentage isolation of F. graminearum or other Fusarium spp. consistently. We conclude that while currently registered seed treatments might be effective in improving seedling emergence in some infected wheat seed lots, they do not prevent the growth of F. graminearum from seeds to plant tissue. For the western prairies, the use of fungicide seed treatments as a strategy in the prevention of spread of FHB would require that they be effective primarily against F. graminearum. Performance of fungicide seed treatments against Fusarium-infected wheat seed should also be determined under typical growing conditions across the western prairies.Key words: Seed treatments, fungicides, wheat, root rot, crown rot, Fusarium graminearum, Fusarium avenaceum

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effectiveness of fungicide seed treatments for preventing seed-to-seedling transmission of Fusarium graminearum under controlled-environment conditions

Fernandez¹,

Turkington²,

May³

2009

Can. J. Plant Sci.

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“…Seed-to-seedling transmission of F. graminearum was demonstrated by Halfron-Meiri et al (1979), Duthie and Hall (1987), and Klein and Burgess (1987). Duthie and Hall (1987) reported that F. graminearum was transmitted from the seed to wheat stem bases with an efficiency of 55 to 94%.…”

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confidence: 99%

Effect of fungicide seed treatments on root pathogens of cereal crops under field conditions

Fernandez¹,

May²,

Lafond³

2010

Can. J. Plant Sci.

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Fernandez, M. R., May W. E. and Lafond, G. P. 2010. Effect of fungicide seed treatments on root pathogens of cereal crops under field conditions. Can. J. Plant. Sci. 90: 905Á917. It is of importance to reduce the spread of Fusarium graminearum to western regions of the Canadian prairies where Fusarium head blight has so far occurred to a limited extent. Determining the effectiveness of fungicides against F. graminearum in infected seed under various growing conditions will help design a comprehensive strategy for preventing the spread of this pathogen. Field trials at various locations in eastern Saskatchewan were conducted (2003Á2005) to examine the performance of registered and experimental fungicides on Fusarium colonization of subcrown internodes (SIs) of plants derived from Fusarium-infected barley (Hordeum vulgare L.), common (Triticum aestivum L.) and durum [T. turgidum L. ssp. durum (Desf.) Husn.] wheat seed, and on SI discoloration. Among the fungi isolated from discolored SIs were Fusarium spp., including F. graminearum, and Cochliobolus sativus. Fusarium graminearum infections were mostly seed-borne whereas infection by other fungi appeared to be mostly soilborne. Compared with the untreated infected control, the combined seed treatments reduced discoloration of SIs, but no single fungicide reduced discoloration consistently across site-years or crops. Similarly, no product consistently reduced the isolation of F. graminearum or other Fusarium pathogens, although some fungicides appeared to be more effective than others in reducing isolation of F. graminearum or C. sativus. Our observations agree with results from a controlledenvironment study of effects of seed treatments on F. graminearum colonization of plants derived from infected common and durum wheat seed, thus confirming that treatment of F. graminearum-infected seed with fungicides will not likely prevent the spread of this pathogen.Key words: Root rot, Fusarium head blight, fungicides, seed treatments, Fusarium spp., Fusarium avenaceum, Fusarium culmorum, Fusarium graminearum, Cochliobolus sativus Fernandez, M. R., May W. E. et Lafond, G. P. 2010. Incidence du traitement des semences avec des fongicides sur la pre´sence de microorganismes pathoge`nes dans les racines des ce´re´ales au champ. Can. J. Plant. Sci. 90: 905Á917. Il est capital de freiner la propagation de Fusarium graminearum dans les re´gions des Prairies canadiennes, dans l'Ouest, ou`la bruˆlure de l'e´pi par Fusarium n'est encore que restreinte. Il sera plus facile d'e´chafauder une strate´gie ge´ne´rale pour pre´venir la propagation de ce pathoge`ne si on pre´cise l'action des fongicides contre F. graminearum dans les graines infecte´es, dans diverses conditions de croissance. Les auteurs ont proce´de´a`des essais sur le terrain a`divers endroits de l'est de la Saskatchewan (2003Á2005) afin d'e´tablir l'efficacite´des fongicides homologue´s et expe´rimentaux sur la colonisation des entrenoeuds infe´rieurs au collet par Fusarium chez les plants issus de graines d'orge (Hordeum...

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The effect of a mixture of seed-borne Microdochium nivale var. majus and Microdochium nivale var. nivale infection on Fusarium seedling blight severity and subsequent stem colonisation and growth of winter wheat in pot experiments

Haigh

Jenkinson²,

Hare

2008

Eur J Plant Pathol

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Greenhouse experiments were conducted in order to determine the impact of seed-borne Microdochium nivale var. nivale and var. majus inoculum, and seed treatment with a carboxin+thiram mixture, on the development of seedling blight, and on subsequent stem colonisation and growth of winter wheat (cv. Cadenza). Experiments were conducted at temperatures favourable (3°C) and unfavourable (22°C) to M. nivale. Seed-borne inoculum resulted in seedling blight symptom development when plants were grown at 3°C, but not when plants were grown at 22°C. For seedlings grown at 3°C, plants arising from heavily blighted seedlings developed more severe symptoms of stem colonisation, when compared with those arising from seedlings from carboxin+thiram treated seeds. In addition, the vigour of such plants (assessed by determining the number of tillers and ears per plant, stem length, green leaf area, dry weight and yield) was also significantly lower than for plants arising from carboxin+thiram treated seeds. Microdochium nivale var. majus and var. nivale appeared to have little effect on plant vigour from seedlings grown at 22°C. This is the first recorded incidence of seedling blight affecting subsequent plant growth. Microdochium nivale var. majus and var. nivale stem colonisation increased from growth stage (GS) 40-49 to harvest in plants raised from seedlings grown at both temperatures. Microdochium nivale var. majus and var. nivale were isolated from the second node at GS 40-49 and the third node at harvest of plants from seedlings grown at 3°C. For plants from seedlings raised at 22°C, M. nivale var. majus and var. nivale were isolated from the first node at GS 40-49 and the second node at harvest. Carboxin+thiram seed treatment decreased the extent and severity of stem colonisation on plants from seedlings grown at 22°C.

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Transmission of Fusarium graminearum from seed to stems of winter wheat

Cited by 27 publications

References 11 publications

Effectiveness of fungicide seed treatments for preventing seed-to-seedling transmission of Fusarium graminearum under controlled-environment conditions

Effectiveness of fungicide seed treatments for preventing seed-to-seedling transmission of Fusarium graminearum under controlled-environment conditions

Effect of fungicide seed treatments on root pathogens of cereal crops under field conditions

The effect of a mixture of seed-borne Microdochium nivale var. majus and Microdochium nivale var. nivale infection on Fusarium seedling blight severity and subsequent stem colonisation and growth of winter wheat in pot experiments

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