Comparison of the ability of fifteen onion (Allium cepa L.) cultivars to accumulate nitrates

Renata Wojciechowska, Anna Kołton

Abstract


The aim of a two-year study was to characterise selected Allium cepa L. genotypes with regard to their ability to accumulate nitrates in bulbs as well as to search for a possible relation between NO3- concentration and dry matter content. Fifteen cultivars of edible onion, mostly of long-day genotype with different growing periods, bulb size and skin colour, were taken for the experiment. Seeds of particular cultivars were obtained from the following seed companies: Spójnia Nochowo (‘Labrador’, ‘Takstar F1’,‘Tęcza’, ‘Warna’, ‘Zorza’), Polan (‘Polanowska’, ‘Topolska’), PlantiCo Gołębiew (‘Alibaba’, ‘Efekt’, ‘Kristine’, ‘Niagara F1’),and PlantiCo Zielonki (‘Bila’, ‘Irka’, ‘Wenta’, ‘Zeta’). Plants produced from seedlings were grown in the experimental field of the University of Agriculture in Kraków. After crop harvesting and additional drying, nitrate and dry matter content in bulbs of all cultivars were measured.

The following cultivars: ‘Efekt’, ‘Labrador’ and red-skinned ‘Wenta’, were characterized by the lowest ability to accumulate NO3- in bulbs. The highest nitrate content was noted in bulbs of ‘Takstar F1’ (a very early-season cultivar), followed by ‘Bila’ and ‘Tęcza’. A weak, yet statistically significant negative correlation between nitrate and dry matter content was observed. The highest dry matter content was determined in bulbs of white-skinned ‘Alibaba’, while the lowest – in brown-skinned ‘Labrador’.


Keywords


Allium cepa L.; cultivars; bulbs; nitrate content; dry matter

Full Text:

PDF

References


Chohura P, Kołota E. Effect of nitrogen fertilization on the yield and quality of field-grown leaf lettuce for spring harvest. Veg Crops Res Bull. 2009; 71: 41–49. http://dx.doi.org/10.2478/v10032-009-0025-8

Wojciechowska R. Some aspects of nitrate metabolism in vegetables with special reference to butterhead lettuce “Sprinter.”Zesz Nauk AR W Krakowie. 2004; 297: 102.

Santamaria P. Nitrate in vegetables: toxicity, content, intake and EC regulation. J Sci Food Agric. 2006; 86(1): 10–17. http://dx.doi.org/10.1002/jsfa.2351

Commission Regulation EU No 1258/2011 [Internet]. 2011 [cited 2013 Oct 31]; Available from: http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2011:320:0015:0017:EN:PDF

Wang YY, Hsu PK, Tsay YF. Uptake, allocation and signaling of nitrate. Trends Plant Sci. 2012; 17(8): 458–467. http://dx.doi.org/10.1016/j.tplants.2012.04.006

Guo S, Brück H, Sattelmacher B. Effects of supplied nitrogen form on growth and water uptake of French bean (Phaseolus vulgaris L.) plants. Plant Soil. 2002; 239(2): 267–275. http://dx.doi.org/10.1023/A:1015014417018

Cardenas-Navarro R, Adamowicz S, Robin P. Nitrate accumulation in plants: a role for water. J Exp Bot. 1999; 50(334): 613–624. http://dx.doi.org/10.1093/jxb/50.334.613

Reinink K, Nes M, Groenwold R. Genetic variation for nitrate content between cultivars of endive (Cichorium endiviae L.). Euphytica. 1994; 75(1–2): 41–48. http://dx.doi.org/10.1007/BF00024530

Leja M, Kołton A, Kamińska I, Wyżgolik G, Matuszak W. Some nutritional constituents in bulbs of selected Allium cultivars. Folia Hort. 2008; 20(2): 39–46. http://dx.doi.org/10.2478/fhort-2013-0112

Ionescu V, Catana M, Catana L, Neigoita M, Iorga E, Balea A, et al. Evaluation of nitrates content of some vegetable species cultivated in open field using enzymatic method. Chem Bull Politeh Univ Timisoara. 2010; 55(69): 91–94.

Jurgiel-Malecka G, Suchorska-Orlowska J. Effect of differentiated nitrogen fertilization on N-NO3 content in selected onion cultivars. Zesz Probl Post Nauk Rol. 2006;513:161–166.

Soleymani A, Shahrajbian MH. Effects of different levels of nitrogen on field and nitrate content of four spring onion genotypes. Int J Agric Crop Sci. 2012; 4(4): 179–182.

Dziennik Ustaw, nr 37, poz. 326. 2003.

Dapoigny L, de Tourdonnet S, Roger-Estrade J, Jeuffroy MH, Fleury A. Effect of nitrogen nutrition on growth and nitrate accumulation in lettuce (Lactuca sativa L.) under various conditions of radiation and temperature. Agronomie. 2000; 20(8): 843–855. http://dx.doi.org/10.1051/agro:2000162