Effects of soil-borneRhizoctonia solani Kühn on yield and quality of ten potato cultivars

Schölte, K.

doi:10.1007/bf02357850

Cited by 41 publications

(25 citation statements)

References 9 publications

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“…Planting time, tuber treatments and time of emergence were equal for both cultivars. Differences between cultivars for susceptibility to stem canker were also found for other cultivars (Scholte, 1989b). In experiment 3 each plot was divided into two: one half received a yearly quantity of 170 kg N ha -1 and the other half yearly 230 kg.…”

Section: Resultsmentioning

confidence: 99%

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Effect of crop rotation on the incidence of soil-borne fungal diseases of potato

Schölte

1992

Netherlands Journal of Plant Pathology

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Effects of crop rotation on the incidence of soil-borne pathogens and on the performance of potato were investigated in five field experiments. Rotations differed in cropping frequency of potato and in crop sequence.Incidence of stem canker caused by Rhizoctonia solani was strongly influenced by the cropping frequency of potato and not by crops with which the potato was alternated in the rotation. Cropping frequency of potato also affected the occurrence of black scurf, but less pronounced than for stem canker. The antagonist Verticillium biguttatum slightly reduced R. solani (black scurf) in plots on sandy soil continuously cropped with potato. Incidence of stem canker was also strongly affected by granular nematicides applied to the soil, nitrogen level and the cultivar grown.Stem infections by Verticillium dahliae depended on the cropping frequency of potato, by the crop with which the potato was alternated in the rotation and by the density and virulence of endoparasitic nematodes, especially Meloidogyne spp.Crop rotation had no effect at all on incidence of common scab on tubers, whereas the effect of cropping frequency of potato on netted scab was highly significant. When cultivars were grown susceptible to both scab types, netted scab supressed common scab.

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Section: Resultsmentioning

confidence: 99%

“…Incidence of stem canker was assessed in all experiments ca 10 weeks after planting by visible rating (Scholte, 1989b) of the 18-30 harvested plants per plot. From these results an index (0-100) was calculated (see under scab).…”

Section: Assessment Of Diseasesmentioning

confidence: 99%

Effect of crop rotation on the incidence of soil-borne fungal diseases of potato

Schölte

1992

Netherlands Journal of Plant Pathology

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“…The infection from the soil was not a problem when potatoes were grown at intervals of five years or more. As cultivation of potatoes became more profitable, the frequency of potato growing increased and also the damage from R. solani (Schölte, 1987(Schölte, , 1989Lamers, 1989). Besides, the formation of sclerotia on young tubers was aggravated by chemical haulm destruction (Mulder et al, 1979;Dijst, 1985), a common farm practice that should be replaced by a method of harvesting that does not stimulate formation of sclerotia (Dijst, 1985;Turkensteen et al, 1989).…”

Section: Rhizoctoniamentioning

confidence: 99%

Biological, Chemical and Integrated Control of Rhizoctonia Solani in Potato

Jager¹,

Velvis²,

Lamers³

et al. 1991

Biotic Interactions and Soil-Borne Diseases

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“…Simons and Gilligan 1997). It may however substantially degrade tuber quality and marketability, which is the consequence of one or more of the following: (a) hard sclerotia on tuber surfaces (black scurf), (b) greater numbers of non-target size tubers, (c) tuber greening, (d) sessile tubers or 'little potato' and (e) malformed tubers (Scholte 1989;Simons and Gilligan 1997).…”

Section: Introductionmentioning

confidence: 96%

Modifications in the potato rhizosphere during infestations of Globodera rostochiensis and subsequent effects on the growth of Rhizoctonia solani

et al. 2010

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Two controlled environment experiments were conducted to explore the hypothesis that invasion and damage caused to potato roots by the potato cyst nematode Globodera rostochiensis might result in quantitative or qualitative changes in the release of root exudates to subsequently affect the growth of Rhizoctonia solani (AG3) in the potato rhizosphere. The growth of five R. solani isolates was compared on media amended either with root exudates from G. rostochiensis-infested or uninfested potato (cv. Désirée) plants at different time intervals after the introduction of the nematodes. In Experiment 1, the growth of R. solani was higher on medium amended with potato root exudates from G. rostochiensis-infested compared to uninfested plants, collected 4, 6, 8 and 12 days after the G. rostochiensis treatments were administered. Similarly, in Experiment 2, R. solani isolates grew faster on medium amended with potato root exudates from G. rostochiensis-infested than uninfested plants. This trend was particularly pronounced at the 12-day collection.At this time, 49% of the G. rostochiensis juveniles in roots were found to belong to the juvenile moults J2 and J3, indicating that root exudates were modified during the earlier stages of juvenile invasion. Carbohydrate analysis of root exudates indicated significantly higher levels of sucrose in root exudates from G. rostochiensis-infested than uninfested plants, whereas no significant differences were found in total nitrogen content. The results are discussed to help elucidate the mechanism behind the disease complex found between G. rostochiensis and R. solani in previous field research.

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Effects of soil-borneRhizoctonia solani Kühn on yield and quality of ten potato cultivars

Cited by 41 publications

References 9 publications

Effect of crop rotation on the incidence of soil-borne fungal diseases of potato

Effect of crop rotation on the incidence of soil-borne fungal diseases of potato

Biological, Chemical and Integrated Control of Rhizoctonia Solani in Potato

Modifications in the potato rhizosphere during infestations of Globodera rostochiensis and subsequent effects on the growth of Rhizoctonia solani

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