Effect of inorganic fertilizers on the Incidence of potato blackleg disease

Graham, D. C.; Harper, Peter C.

doi:10.1007/bf02364300

Cited by 12 publications

(7 citation statements)

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“…, 1982). The effect of nitrogen levels on blackleg and soft rot in potato has not been explored, apart from a study by Graham & Harper (1966), who showed that blackleg incidence caused by Pa was lower in field plots treated with high than with low levels of N fertilizers.…”

Section: Control Strategiesmentioning

confidence: 99%

Control of blackleg and tuber soft rot of potato caused by Pectobacterium and Dickeya species: a review

et al. 2011

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This paper briefly reviews research on the causative agents of blackleg and soft rot diseases of potato, namely Pectobacterium and Dickeya species, and the disease syndrome, including epidemiological and aetiological aspects. It critically evaluates control methods used in practice based on the avoidance of the contamination of plants, in particular the use of seed testing programmes and the application of hygienic procedures during crop production. It considers the perspective of breeding and genetic modification to introduce resistance. It also evaluates the application of physical and chemical tuber treatments to reduce inoculum load and examines the possibility of biocontrol using antagonistic bacteria and bacteriophages.

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Section: Control Strategiesmentioning

confidence: 99%

Control of blackleg and tuber soft rot of potato caused by Pectobacterium and Dickeya species: a review

et al. 2011

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“…UK. 1980;Perombelon et ai, 1987a) and soil nutrient status (Graham & Harper, 1966) as well as cultivar resistance and the synergistic or antagonistic effects of other pathogens and microorganisms (Perombelon et ai, 1989) but the number of viable cells of E. c. subsp. atroseptiea contaminating the seed tubers at planting is of primary importance, as first proposed in the 1970s (Perombelon, 1973;Maas Geesteranus & Vruggink, 1976;Aleck & Harrison.…”

Section: Introductionmentioning

confidence: 99%

Blackleg development and tuber yield in relation to numbers of Erwinia carotovora subsp. atroseptica on seed potatoes

Bain

Pérombelon²,

Tsror

et al. 1990

Plant Pathology

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The relationship between number of viable cells of Erwinia carotovora subsp. atroseptica on inoculated potato seed tubers and blackleg development was investigated in 2 years for five cultivars grown in the contrasting climates of Scotland and Israel. Blackleg, and to a lesser extent non‐emergence, increased with higher numbers of bacteria on the seed tubers at planting. This relationship was also found for several commercial seed stocks of one cultivar naturally contaminated with different numbers of E. carotovora subsp. atroseptica.The threshold number of bacteria necessary for the development of blackleg declined during the growing season and was also higher for the cultivar Pentland Crown in comparison with the others. In general, yield declined linearly with blackleg incidence and there was a 0.8% reduction in yield for every 1 % blackleg at 13 weeks after planting. Yield loss was positively related to the incidence of blackleg late in the season, whereas the relationship between yield loss and the incidence of non‐emergence was poor.

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“…With a low amount of 56 kgN/ha, an average of 25% of blackleg was observed at the end of the growing season, while with a high amount of 224 kg N/ha the percentage of blackleg was about 10% lower (16%). Graham and Harper (1966) observed that there was no interaction between variety and nitrogen supply, suggesting that this tendency holds whatever the variety. Others found that a high nitrogen supply promotes blackleg.…”

Section: Effect Of Plant Nutrition On Blackleg and Soft Rotmentioning

confidence: 93%

“…N is a component of proteins, enzymes, hormones, phenolics and phytoalexins, which all affect disease development (Huber and Thompson 2007;Elmer and Datnoff 2014). The effect of nitrogen levels on blackleg has been explored by Graham and Harper (1966), who showed that blackleg incidence caused by P. atrosepticum was lower in field plots with a relatively high N supply (Fig. 6.1).…”

Section: Effect Of Plant Nutrition On Blackleg and Soft Rotmentioning

confidence: 99%

Management of Diseases Caused by Pectobacterium and Dickeya Species

Wolf

Boer

Czajkowski

et al. 2021

Plant Diseases Caused by Dickeya and Pectobacterium Species

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Article 25fa states that the author of a short scientific work funded either wholly or partially by Dutch public funds is entitled to make that work publicly available for no consideration following a reasonable period of time after the work was first published, provided that clear reference is made to the source of the first publication of the work.This publication is distributed under The Association of Universities in the Netherlands (VSNU) 'Article 25fa implementation' project. In this project research outputs of researchers employed by Dutch Universities that comply with the legal requirements of Article 25fa of the Dutch Copyright Act are distributed online and free of cost or other barriers in institutional repositories. Research outputs are distributed six months after their first online publication in the original published version and with proper attribution to the source of the original publication.

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Effect of inorganic fertilizers on the Incidence of potato blackleg disease

Cited by 12 publications

References 1 publication

Control of blackleg and tuber soft rot of potato caused by Pectobacterium and Dickeya species: a review

Control of blackleg and tuber soft rot of potato caused by Pectobacterium and Dickeya species: a review

Blackleg development and tuber yield in relation to numbers of Erwinia carotovora subsp. atroseptica on seed potatoes

Management of Diseases Caused by Pectobacterium and Dickeya Species

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