Cultivation technology influences the occurrence of potato early blight (Alternaria solani) in an organic farming system

Runno-Paurson, Eve; Hansen, Merili; Tein, Berit; Loit, Kaire; Jõgi, Kätlin; Luik, Anne; Metspalu, L.; Eremeev, Viacheslav; Williams, I. H.; Mänd, Marika

doi:10.13080/z-a.2014.101.026

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…The products tested in the cited study (Bioilsa Fertil NC, EM Farma Plus, UGmax) delayed the onset of disease, prolonged the growing season (in particular when disease severity was low) and protected crops. Runno-Paurson et al (2014) reported higher tuber yields in treatments where intercropping and manure fertilizers were used. Potato leaves were more severely infected with Alternaria spp.…”

Section: Assessment Of Potato Tuber Yield By Linear Regression Analysismentioning

confidence: 95%

The Effect of Growth Regulators and a Biostimulator on the Health Status, Yield and Yield Components of Potatoes (Solanum tuberosum L.)

2017

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In this study, the influence of potato cultivars Irga, Satina, Valfi, Blaue St. Galler and Highland Burgundy Red (HB Red), growth regulators: Bio-Algeen S-90, Kelpak SL and Trifender WP, and the biostimulator Asahi SL on the health status of potato plants and tuber yield was investigated. The severity of late blight and early blight was estimated during the growing season. After harvest, potato tuber yield was determined according to size fractions. The applied treatments significantly reduced the severity of late blight in cv. Irga (Kelpak SL), Valfi (Bio-Algeen S-90, Kelpak SL, Trifender WP) and Blaue St. Galler (Trifender WP) in 2013. In 2015, the symptoms of early blight were significantly reduced in cv. Irga after the application of all tested bioregulators. HB Red was characterized by the best health status among the evaluated cultivars. Kelpak SL and BioAlgeen S-90 increased the tuber yield of cvs. Irga and HB Red, respectively, in 2013, and Trifender WP increased the tuber yield of cv. Satina in 2014. In the first year of the study, the applied growth regulators and biostimulator significantly increased the percentage of medium-sized tubers of cv. Blaue St. Galler, and Bio-Algeen S-90 increased the percentage of medium-sized tubers of cv. HB Red.

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Section: Assessment Of Potato Tuber Yield By Linear Regression Analysismentioning

confidence: 95%

The Effect of Growth Regulators and a Biostimulator on the Health Status, Yield and Yield Components of Potatoes (Solanum tuberosum L.)

2017

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“…Long-term organic crop rotation systems can have even more nitrogen in the soil than the conventional farming systems [34]. Runno-Paurson et al [35] also reported that the addition of manure will increase the early blight pressure, but it does not affect the yield.…”

Section: Resultsmentioning

confidence: 99%

Impact of Farming System on Potato Yield and Tuber Quality in Northern Baltic Sea Climate Conditions

et al. 2022

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For finding more sustainable cropping systems, this study on how the farming system influences the yield and quality of potato tubers was carried out with long-term crop rotation experiment. The long-term five-field crop rotation field trial was established with the following farming system treatments: organic farming system treatments: Org I (organic control), Org II (organic crop rotation with winter cover crops) and Org III (organic crop rotation with winter cover crops and the addition of composted cattle manure); conventional farming system treatments: N0 (conventional system without fertilizers), N50 (conventional system with fertilization, N50P25K95), N100 (conventional system, N100P25K95) and N150 (conventional system, N150P25K95). The average yield (based on 3 trial years) of conventional systems was 25% higher, compared to organic systems. However, in organic systems, the yield was the most stable. The most fluctuating cropping system was the most intensively managed N150. In each trial year, the yield differed statistically and it varied from 4.7 t ha−1 up to 10.9 t ha−1. Org I had the same dry matter yield as the N0 system, where chemicals were used, meaning that using chemicals for plant protection but no fertilizer for growth improvement had no positive effect. In each year, the yield in Org III system was similar to N50 system. Regarding the tubers per plant, there were no differences between farming systems but there was a significant difference between the trial years. The tubers in conventional systems had a lower starch content than the organic systems. It is possible to conclude that if cover crops and manure are used, organic farming practices provide just as good results as the conventional farming with low nitrogen level.

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“…Different cruciferous crops like winter oilseed rape, white mustard (Sinapis alba L.) and oilseed radish (Raphanus sativus (L.)) have been used quite successfully as green manure and cover crops to supress soilborne pathogens and reduce foliar disease progression (Larkin et al, 2010;Larkin, 2017;Olanya et al, 2014;Runno-Paurson et al, 2014, 2019. Use of cover crops could be a promising alternative disease control strategy for environmentally friendly producers.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Downy Mildew (Hyaloperonospora Brassicae) Infection Severity on Different Cruciferous Oilseed Crops

Runno-Paurson¹,

Lääniste²,

Eremeev³

et al. 2020

Rural Development 2019

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Diseases constitute an important economic problem in oilseed rape (Brassica napus) cultivation. Although downy mildew has been counted so far as a minor disease, under intensive cultivation system and short rotation interval, the impact of diseases could increase in the future, especially under predicted more humid northern climatic conditions. This research study is the first report about the severity of downy mildew infection on cruciferous crops in Estonia. During two years (2010 − 2011), downy mildew infection severity was assessed in six different cruciferous crops (B. napus, B. juncea, B. nigra, Sinapis alba, Raphanus sativus, Eruca sativa) in field trials located in Eerika, Tartu County, Estonia. On both study years, four disease assessments were done. Downy mildew infection started a week earlier in 2010, but the overall disease pressure was lower compared to 2011. Based on our field trial results, S. alba, E. sativa and R. sativus plants were significantly more resistant to downy mildew compared to other tested crops. Furthermore, in 2010 downy mildew symptoms were not recorded on two cruciferous species E. sativa and R. sativus. Brassica nigra and B. napus plants were the most susceptible to downy mildew, with especially severe infection in 2011. Based on our two years data, downy mildew can damage foliage on spring oilseed rape (B. napus) and black mustard (B. nigra) in a notable extent. We conclude that downy mildew is an important pathogen, which should be monitored on different oilseed cruciferous crops in Estonia.

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Cultivation technology influences the occurrence of potato early blight (Alternaria solani) in an organic farming system

Cited by 9 publications

References 16 publications

The Effect of Growth Regulators and a Biostimulator on the Health Status, Yield and Yield Components of Potatoes (Solanum tuberosum L.)

The Effect of Growth Regulators and a Biostimulator on the Health Status, Yield and Yield Components of Potatoes (Solanum tuberosum L.)

Impact of Farming System on Potato Yield and Tuber Quality in Northern Baltic Sea Climate Conditions

Evaluation of Downy Mildew (Hyaloperonospora Brassicae) Infection Severity on Different Cruciferous Oilseed Crops

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