{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,31]],"date-time":"2026-07-31T03:10:28Z","timestamp":1785467428343,"version":"3.56.0"},"reference-count":37,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,4,7]],"date-time":"2022-04-07T00:00:00Z","timestamp":1649289600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>It was previously shown that spraying with CaCl2, MgCl2, KCl, and K2SO4 and high N and Mg concentrations in the irrigation water of potted cucumber plants reduced powdery mildew, while medium P and high K concentrations increased powdery mildew. In the present work, we tested the effect of irrigation with N, P, K, Ca, and Mg and spraying with salts on downy mildew (Pseudoperonospora cubensis) of cucumber (CDM). In potted plants, an increase in N concentration in the irrigation water resulted in a major increase in CDM severity, while an increase in K or Ca concentrations resulted in a gradual increase in CDM severity. An increase in P and Mg concentrations in the irrigation water resulted in a major CDM decrease. Spraying with Ca, Mg, and K salts with Cl and SO4 anions resulted in CDM suppression in most cases, and a negative correlation was obtained between the salt and anion molar concentrations and the CDM severity. Using NaCl sprays, both Na and Cl concentrations were negatively related to the CDM severity. MgCl2 (0.1 M Cl), K2SO4 (0.1 M SO4), MgCl2 + K2SO4, and monopotassium phosphate (MKP, 1%) sprayed under commercial-like (CL) conditions significantly reduced CDM by 36.6% to 62.6% in one disease cycle, while, in a second cycle, CDM was significantly reduced only by K2SO4 and MKP. In conclusion, fertigation with P and Mg, and salt spraying decreased CDM, while only spraying under CL resulted in CDM suppression.<\/jats:p>","DOI":"10.3390\/plants11081007","type":"journal-article","created":{"date-parts":[[2022,4,7]],"date-time":"2022-04-07T21:08:22Z","timestamp":1649365702000},"page":"1007","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Effect of Mineral Nutrition and Salt Spray on Cucumber Downy Mildew (Pseudoperonospora cubensis)"],"prefix":"10.3390","volume":"11","author":[{"given":"Dor","family":"Barnea","sequence":"first","affiliation":[{"name":"Department Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Institute, 68 Hamakabim Rd, Rishon LeZion 7534509, Israel"},{"name":"The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel"},{"name":"Agricultural Research Organization, Gilat Research Center, D.N. Negev 2, Bet-Dagan 8528001, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8326-7365","authenticated-orcid":false,"given":"Uri","family":"Yermiyahu","sequence":"additional","affiliation":[{"name":"Agricultural Research Organization, Gilat Research Center, D.N. Negev 2, Bet-Dagan 8528001, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dalia","family":"Rav-David","sequence":"additional","affiliation":[{"name":"Department Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Institute, 68 Hamakabim Rd, Rishon LeZion 7534509, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9000-8214","authenticated-orcid":false,"given":"Yigal","family":"Elad","sequence":"additional","affiliation":[{"name":"Department Plant Pathology and Weed Research, Agricultural Research Organization, The Volcani Institute, 68 Hamakabim Rd, Rishon LeZion 7534509, Israel"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,4,7]]},"reference":[{"key":"ref_1","unstructured":"Marschner, H. (2011). Marschner\u2019s Mineral Nutrition of Higher Plants, Academic Press."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1111\/1365-3040.ep11604921","article-title":"Mineral nutrition of higher plants","volume":"11","author":"Marschner","year":"1988","journal-title":"Plant Cell Environ."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"33","DOI":"10.1051\/agro:2007051","article-title":"Role of nutrients in controlling plant diseases in sustainable agriculture","volume":"28","author":"Dordas","year":"2008","journal-title":"A review. Agron. Sustain. Dev."},{"key":"ref_4","first-page":"329","article-title":"Micronutrients and disease resistance and tolerance in plants","volume":"2","author":"Graham","year":"1991","journal-title":"Micronutr. Agric."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1016\/S0065-2296(08)60261-X","article-title":"Effects of nutrient stress on susceptibility of plants to disease with particular reference to the trace elements","volume":"10","author":"Huber","year":"1983","journal-title":"Adv. Bot. Res."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1111\/j.1744-7348.2007.00176.x","article-title":"Influence of nutrition on disease development caused by fungal pathogens: Implications for plant disease control","volume":"151","author":"Walters","year":"2007","journal-title":"Ann. Appl. Biol."},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Elad, Y., Barnea, D., Rav-David, D., and Yermiyahu, U. (2021). Nutrient status of cucumber plants affects powdery mildew (Podosphaera xanthii). Plants, 10.","DOI":"10.3390\/plants10102216"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Elad, Y., Kleinman, Z., Nisan, Z., Rav-David, D., and Yermiyahu, U. (2021). Effects of calcium, magnesium and potassium on sweet basil downy mildew (Peronospora belbahrii). Agronomy, 11.","DOI":"10.3390\/agronomy11040688"},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Elad, Y., Nisan, Z., Kleinman, Z., Rav-David, D., and Yermiyahu, U. (2021). Effects of microelements on downy mildew (Peronospora belbahrii) of sweet basil. Plants, 10.","DOI":"10.3390\/plants10091793"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1007\/s12600-019-00716-3","article-title":"Plant nutrition for management of white mold in sweet basil","volume":"47","author":"Yermiyahu","year":"2019","journal-title":"Phytoparasitica"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.1094\/PHYTO-09-14-0256-R","article-title":"Higher potassium concentration in shoots reduces gray mold in sweet basil","volume":"105","author":"Yermiyahu","year":"2015","journal-title":"Phytopathology"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1013","DOI":"10.1007\/s12600-021-00922-y","article-title":"The effect of nitrogen and NH4+ fertilization on Peronospora belbahrii downy mildew of sweet basil","volume":"49","author":"Elad","year":"2021","journal-title":"Phytoparasitica"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"239","DOI":"10.1023\/A:1014960507981","article-title":"Effect of nitrogen supply rate on disease resistance in tomato depends on the pathogen","volume":"218","author":"Hoffland","year":"2000","journal-title":"Plant Soil"},{"key":"ref_14","unstructured":"Spencer, D.M. (1981). Downy mildew of cucurbits. The Downy Mildews, Academic Press."},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Colucci, S.J., and Holmes, G.J. (2010). Downy Mildew of Cucurbits. Plant Health Instr.","DOI":"10.1094\/PHI-I-2010-0825-01"},{"key":"ref_16","unstructured":"McGrath, M.T., Gugino, B., Everts, K., Rideout, S., Kleczewski, N., and Wyenandt, A. (2021, May 23). Effectively Managing Cucurbit Downy Mildew in the Northeast and Mid-Atlantic Regions of the US in 2013. Penn State Extension. Available online: http:\/\/extension.psu.edu\/plants\/vegetable-fruit\/news\/2013\/effectively-managing-cucurbit-downy-mildew-in-the-mid-atlantic-and-northeast-regions-in-2013."},{"key":"ref_17","unstructured":"Zitter, T.A., Hopkins, D.L., and Thomas, C.E. (1996). Compendium of Cucurbit Diseases, American Phytopathological Society Press."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"31","DOI":"10.37855\/jah.2019.v21i01.05","article-title":"Effect of nitrogen fertilization on cucumber downy mildew","volume":"21","author":"Papadaki","year":"2019","journal-title":"J. Appl. Hortic."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1016\/0261-2194(95)00109-3","article-title":"Controlling powdery mildew caused by Sphaerotheca fuliginea in cucumber by foliar sprays of phosphate and potassium salts","volume":"15","author":"Reuveni","year":"1996","journal-title":"Crop Prot."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1007\/BF02149910","article-title":"Relationship between mineral nutrition of muskmelon and development of downy mildew caused by Pseudoperonospora cubensis","volume":"49","author":"Bains","year":"1978","journal-title":"Plant Soil"},{"key":"ref_21","first-page":"91","article-title":"Influence of host nutrition on downy mildew of blond psyllium","volume":"56","author":"Rathore","year":"2003","journal-title":"Indian Phytopathol."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1569","DOI":"10.1080\/03235408.2021.1929041","article-title":"Nitrogen application accelerates the downy mildew disease severity with leaf age in canola plants","volume":"54","author":"Kamran","year":"2021","journal-title":"Arch. Phytopathol. Plant Protect."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1139\/cjps-2014-0348","article-title":"Effect of nitrogen fertilization on camelina seed yield, yield components, and downy mildew infection","volume":"96","author":"Yunfei","year":"2016","journal-title":"Can. J. Plant Sci."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"527","DOI":"10.17660\/ActaHortic.2006.712.65","article-title":"Effect of different nutrition solution programs on reducing vegetables fungal diseases to produce high quality and safety vegetables products","volume":"712","author":"Shama","year":"2006","journal-title":"Acta Hortic."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"70","DOI":"10.21273\/JASHS.104.1.70","article-title":"Effect of nutrient stress on elemental concentrations and powdery mildew growth with cucumber","volume":"104","author":"Tomesh","year":"1979","journal-title":"J. Am. Soc. Hortic. Sci."},{"key":"ref_26","first-page":"1551","article-title":"Mineral salts for control of powdery mildew (Oidium sp.) in cucumber","volume":"7","year":"2016","journal-title":"Rev. Mex. Cienc. Agr\u00edcolas"},{"key":"ref_27","first-page":"200","article-title":"Biological and chemical resistance inducers approaches for controlling foliar diseases of some vegetables under protected cultivation system","volume":"4","author":"Lashin","year":"2013","journal-title":"J. Plant Pathol. Microbiol."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1111\/j.1365-3059.1995.tb02713.x","article-title":"Suppression of cucumber powdery mildew (Sphaerotheca fuliginea) by foliar sprays of phosphate and potassium salts","volume":"44","author":"Reuveni","year":"1995","journal-title":"Plant Pathol."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1016\/S0261-2194(00)00029-6","article-title":"Systemic resistance against Sphaerotheca fuliginea in cucumber plants exposed to phosphate in hydroponics system, and its control by foliar spray of mono-potassium phosphate","volume":"19","author":"Reuveni","year":"2000","journal-title":"Crop Prot."},{"key":"ref_30","first-page":"S1","article-title":"Mono potassium phosphate (MKP) as part of an integrated pest management program to control powdery mildew","volume":"49","author":"Napier","year":"1999","journal-title":"Deciduous Fruit Grow."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1016\/S0261-2194(01)00150-8","article-title":"Induction of resistance in pearl millet against downy mildew disease caused by Sclerospora graminicola using benzothiadiazole, calcium chloride and hydrogen peroxide\u2014A comparative evaluation","volume":"21","author":"Geetha","year":"2002","journal-title":"Crop Prot."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"49","DOI":"10.1556\/038.52.2017.011","article-title":"Chemical inducers for resistance induction against powdery mildew of cucumber under greenhouse conditions","volume":"52","author":"Hamza","year":"2017","journal-title":"Acta Phytopathol. Entomol. Hung."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1080\/01904167.2011.533325","article-title":"Effects of silicon on the activities of defense-related enzymes in cucumber inoculated with Pseudoperonospora cubensis","volume":"34","author":"Yu","year":"2011","journal-title":"J. Plant Nutr."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"639","DOI":"10.21273\/JASHS.133.5.639","article-title":"Flowering and fruit-set of young olive (Olea europea L. cv. Barnea) trees in response to nitrogen, phosphorus and potassium","volume":"133","author":"Erel","year":"2008","journal-title":"J. Am. Soc. Hort. Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1163\/22238980-06401001","article-title":"Polyhalite as a multi nutrient fertilizer\u2014Potassium, magnesium, calcium and sulfate","volume":"64","author":"Yermiyahu","year":"2017","journal-title":"Isr. J. Plant Sci."},{"key":"ref_36","first-page":"1950","article-title":"Colorimetric methods of analysis including some turbidimetric and nephelometric methods","volume":"Volume 2","author":"Snell","year":"1949","journal-title":"Inorganic Chemistry"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1146\/annurev.arplant.58.032806.103750","article-title":"Nutrient sensing and signaling: NPKS","volume":"58","author":"Schachtman","year":"2006","journal-title":"Annu. Rev. Plant Biol."}],"container-title":["Plants"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2223-7747\/11\/8\/1007\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T22:50:00Z","timestamp":1760136600000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2223-7747\/11\/8\/1007"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,4,7]]},"references-count":37,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2022,4]]}},"alternative-id":["plants11081007"],"URL":"https:\/\/doi.org\/10.3390\/plants11081007","relation":{},"ISSN":["2223-7747"],"issn-type":[{"value":"2223-7747","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,4,7]]}}}