<i>Rhizoctonia</i> species and anastomosis groups isolated from barley and wheat in Erzurum, Turkey

Demirci, E.

doi:10.1046/j.1365-3059.1998.00214.x

Cited by 51 publications

(43 citation statements)

References 18 publications

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“…comm.). Its strong virulence on cereals (Mazzola et al 1996;Demirci 1998;Okubara et al 2008) and its common occurrence determined its use in the present study on triticale cultivars.…”

Section: Discussionmentioning

confidence: 90%

“…The symptoms produced by R. solani were not typical of sharp eyespot. Lesions did not have the sharply defined dark brown borders which are formed on plants infected by R. cerealis (Ogoshi et al 1990;Mazzola et al 1996;Demirci 1998;Wachowska 2000;Tewoldemedhin et al 2006;Bockus et al 2010). Different reactions to R. cerealis may occur in the field, however.…”

Section: Discussionmentioning

confidence: 99%

“…The anastomosis groups of R. solani that occur and are significant in cereals include AG-2, AG-4, AG-5 (Mazzola et al 1996;Demirci 1998;Okubara et al 2008) and AG-8 (Ogoshi et al 1990;Mazzola et al 1996;Bockus et al 2010). Group AG-5 is currently the most pathogenic on cereals in Europe (Schade-Schütze pers.…”

Section: Discussionmentioning

confidence: 99%

“…Grain of each of the 30 cultivars was surface-disinfected in mercury (II) chloride (1% HgCl 2 ) for 5 min, rinsed in sterile distilled water 6x10 min, placed on sterile wet blotting paper in Petri dishes and incubated at 20-22°C for 72 h. Germinated grains were transferred to 10-mm PDA discs, cut from 10-day-old R. cerealis or R. solani cultures, on three sheets of sterile, wet (with 16 ml of water) blotting paper in Petri dishes (200x30 mm) and incubated at 20°C. Infection on coleoptiles, leaves, and roots was assessed after 14 days for R. cerealis and after 10 days for R. solani according to a 0-4 severity scale (Demirci 1998). A disease index (DI) was calculated on a % scale using the Townsend and Heuberger formula (Wenzel 1948).…”

Section: Isolation and Identification Of Fungimentioning

confidence: 99%

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Susceptibility of winter Triticale Cultivars to Rhizoctonia Cerealis (sharp eyespot) and R. Solani

Lemańczyk¹

2012

Journal of Plant Protection Research

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Abstract:In the field study period from 2006 to 2010, the incidence and severity of sharp eyespot caused by Rhizoctonia were recorded on 36 cultivars of triticale at the milk ripe growth stage. Four localities in north-central Poland were included: Chrząstowo, Dębina, Kończewice and Minikowo. The susceptibility of the seedlings of 30 cultivars of triticale to R. cerealis (AG-D subgroup I) and R. solani (AG-5) was studied in the laboratory. There was much variation in incidence and severity of sharp eyespot between years and locations. The disease was most intense at Chrząstowo. At this location, the mean percentage of diseased stems on 28 cultivars was Most symptoms developed on coleoptiles, with less symptoms on the leaves and the least on the roots. There was much variation in susceptibility of triticale cultivars to both Rhizoctonia species. Cultivars were grouped into six categories according to the intensity of seedling infection. Categories 1, 2 and 3, representing low, moderate and high susceptibility to R. cerealis, included 17, 10 and 3 cultivars, respectively. Categories 4, 5 and 6, representing low, moderate and high susceptibility to R. solani, included 3, 12 and 15 cultivars, respectively. Cultivars Baltiko and Zorro had low, and cv. Cultivo had high susceptibility to both Rhizoctonia species. No cultivar was resistant to Rhizoctonia. There was a positive correlation between infection by R. cerealis and R. solani. Infection of coleoptiles by R. cerealis or R. solani was significantly correlated with infection of leaves. No correlation between intensity of sharp eyespot on triticale plants in the field and on seedlings in controlled conditions was found.

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“…comm.). Its strong virulence on cereals (Mazzola et al 1996;Demirci 1998;Okubara et al 2008) and its common occurrence determined its use in the present study on triticale cultivars.…”

Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Isolation and Identification Of Fungimentioning

confidence: 99%

See 2 more Smart Citations

Susceptibility of winter Triticale Cultivars to Rhizoctonia Cerealis (sharp eyespot) and R. Solani

Lemańczyk¹

2012

Journal of Plant Protection Research

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“…However, according to Mazzola et al (1996), R. solani anastomosis group 4 (AG-4) is also the causal agent of sharp eyespot. In the cereals, a role can also be played by the following AGs: AG-8 (Ogoshi et al 1990;Bockus et al 2010), AG-2 and AG-5 (Mazzola et al 1996;Demerci 1998;Okubara et al 2008) as well as AG-11 and AG-3 (Demerci 1998;Tewoldemedhin et al 2006), AG-9 and AG-10 (Ogoshi et al 1990).…”

Section: Introductionmentioning

confidence: 99%

The Role of the Preceding Crop and Weed Control in the Transmission of Rhizoctonia Cerealis and R. Solani to Winter Cereals

Lemańczyk¹

2012

Journal of Plant Protection Research

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Abstract:Winter cereals (wheat, triticale, rye, barley) grown in experimental fields were assessed for sharp eyespot. Preceding crops (spring cereals and fallow) and weed control (herbicides application, no control) were taken into account. The health status evaluation was carried out at the stem elongation phase and at the milk maturity stage. The macroscopic estimation was accompanied by the analysis of fungal species identified on stem bases and roots, which showed various disease symptoms. The analysis of fungal species from the genus Rhizoctonia were especially noted. Mycological analysis of roots was carried out at the seedling growth and stem elongation phase, and stem bases at the seedling growth and milk maturity stage. Infection caused by Rhizoctonia spp. was confirmed by polymeraze chain reaction (PCR) assay. The highest infection was noted on wheat followed by triticale, rye and barley.Occurrence of sharp eyespot depended more on weed control than on what the preceding crop had been. At the milk maturity stage, lower severity of sharp eyespot of triticale, rye and barley was noted on plots not treated with herbicides, and on wheat with herbicide application. The research showed a significant effect of the preceding crop only on the health status of wheat. At the milk maturity stage, the highest infection was noted after spring triticale and the lowest after oats. Stems of cereals with sharp eyespot symptoms and healthy stems were settled mainly by Rhizoctonia cerealis (wheat -25.6%, triticale -12.0%, rye -22.2%, barley -11.3%), rarely by R. solani (respectively 6.0, 4.0, 2.9 and 1.8%). Rhizoctonia solani was isolated more often from roots with true eyespot and Fusarium foot rot symptoms. It may suggest that R. cerealis was the main causal agent of sharp eyespot on all tested cereals. The preceding crop did not affect the composition of Rhizoctonia species.

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Identification and pathogenicity ofFusarium spp. from stem bases of winter wheat in Erzurum, Turkey

Demirci

Dane

2003

Phytoparasitica

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Rhizoctonia species and anastomosis groups isolated from barley and wheat in Erzurum, Turkey

Cited by 51 publications

References 18 publications

Susceptibility of winter Triticale Cultivars to Rhizoctonia Cerealis (sharp eyespot) and R. Solani

Susceptibility of winter Triticale Cultivars to Rhizoctonia Cerealis (sharp eyespot) and R. Solani

The Role of the Preceding Crop and Weed Control in the Transmission of Rhizoctonia Cerealis and R. Solani to Winter Cereals

Identification and pathogenicity ofFusarium spp. from stem bases of winter wheat in Erzurum, Turkey

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