Maria Tendaj

University of Life Sciences in Lublin

Barbara Mysiak

University of Life Sciences in Lublin


Up-to-date production of shallots for commercial purposes was limited due to low supply of the seeding material as well as no breeding cultivars that would produce seeds. Local populations commonly grown in various countries are reproduced mainly in vegetative way, because they usually do not produce generative shoots nor seeds, or they are formed, but in a very reduced number. The aim of this study, conducted in the period 2009–2012, was to evaluate generative growth and seed production in shallot grown from seedlings planted in summer at different dates, without producing mother bulbs. The study included 4 shallot cultivars – ‘Toto’, ‘Ambition F1’, ‘Bonilla F1’, and ‘Matador F`1’. Seedlings (4 weeks old) were planted in the field on three dates – 3rd decade of July, 1st decade of August, and 3rd decade of August. In the second year of cultivation, after the plants had overwintered in the ground, losses in plants, the percentage of plants producing seed
stalks and some traits of these stalks as well as seed yield in the true breeding cultivar ‘Toto’ were determined. Plants of the other cultivars were not allowed to produce seeds (inflorescence umbels were topped before flower opening), since these were hybrids and undesired cross-breeding could occur. The study showed that overwintering losses in plants were on average 26.3%, but they were the lowest in cv. ‘Toto’, in particular among plants obtained from the first date of planting seedlings. Irrespective of the cultivar, the largest amount of plants with developed seed stalks and with their highest number per plant were recorded in the treatments where the first planting date was used. A delay in planting seedlings in the first year of cultivation by 2–4 weeks had a significant effect on
reducing the percentage of plants developing seed stalks in the second year, while in cv. ‘Toto” it resulted in a very high decrease in seed yield.


shallot cultivars, characteristics of seed stalks, seed yield

Anisuzzaman M., Mohd R.I., Uddin M.K., Rahim M.A., 2009. Planting time and mulching effect on onion development and seed production. Afric. J. Biotech. 8(3), 412–416.
Awale D., Alamerew S., Tabor G., 2011. Genetic variability and association of bulb yield and related traits in shallot (Allium cepa var. aggregatum) Don. in Ethiopia. Int. J. Agric. Res. 6(7), 515–536.
Brewster J.L., 1994. Onion and other vegetable Alliums. CAB, INT., Wallingford, UK, 5–40.
Brink L., Basuki R.S., 2012. Production of true seed shallots in Indonesia. Acta Hort. 958, 115–120.
Cohat J., Chauvin J.E., Le Nard M., 2001. Shallot (Allium cepa var. aggregatum) production and breeding in France. Acta Hort. 555, 221–225.
Kotlińska T., 1995. Zróżnicowanie cech użytkowych populacji szalotki (Allium cepa var. aggregatum). Mater. Konf. 5 Ogólnopol. Zjazdu Hod. Rośl. Ogrod., 24–25 lutego 1995, Skierniewice, 1, 148–155.
Krontal Y., Kamenetsky R., Rabinowitch H.D., 1998. Lateral development and floregenesis of a tropi cal shallot: a comparison with bulb onion. Int. J. Plant Sci. 159(1), 57–64.
Morozowska M., Hołubowicz R., 2009. Effect of bulb size on selected morphological characteristics of seed stalks, seed yield and quality of onion (Allium cepa L.) seeds. Folia Hort. 21/1, 27–38.
McDonald M.R., Jaime M., Hovius M.H.Y., 2004. Management of diseases of onion and garlic. Diseases of fruits and vegetables, Naqvi S.A.M.H. (ed.). Vol. 2, Kluwer Acad. Publ., 149–200.
Permadi A.H., 1994. Growing shallot from true seed-research results and problems. Onion Newslet. Tropics 5, 35–38.
Răduica D.V., Popescu V., 2010. Research on the biology, technology and use of shallots (Allium ascalonicum). J. Hort. Forest. Biotech. 14(2), 250–257.
Sumami N., Soetiarso T.A., 1998. Effect of planting time and seed bulb size on the growth, yield and cost of true shallot seed production. J. Hort. 8(2), 1085–1094.
Sumanaratne J.P., Palipane W.M.U., Sujeewa Kumary L.G., 2002. Feasibility of small onion Allium cepa L. Aggregatum Group cultivation from true seeds. Ann. Sri Lanka Dep. Agric. 4, 39–46.
Tabor G., 2004. Manipulation of flowering for seed production of shallot (Allium cepa L. var. ascalonicum Backer). Ph. Thesis, Univ. Hannover. Germany, 78 pp.
Tabor G., Stüetzel H., Zelleke A., 2005. Juvenility and bolting in shallot (Allium cepa L. var. ascalonicum Backer). J. Hort. Sci. Biotech. 80(6), 751–759.
Tabor G., Stüetzel H., Zelleke A., 2006. Influence of planting material and duration of bulb vernalisation on bolting of shallot (Allium cepa L. var. ascalonicum Backer). Hort. Sci. Biotech. 81(5), 797–802.
Tendaj M., 2005. Shallot production and research in Poland. Veg. Crops Res. Bull. 62, 55–60.
Tendaj M., Piusińska-Siedlecka M., 1999. Ocena kilku populacji szalotki (Allium cepa L. var. aggregatum group). Zesz. Probl. Post. Nauk Roln. 466, 101–108.
Tendaj M., Mysiak B., 2012. Charakterystyka wzrostu i plonowania cebuli szalotki w zależności od metody uprawy. Annales UMCS, sec. EEE, Horticultura 22(2), 23–30.
Tomar B.S., 2004. Quality seed production of onion. Proc. Amer. Soc. Hort. Sci. 29, 572–581.


Maria Tendaj 
University of Life Sciences in Lublin
Barbara Mysiak 
University of Life Sciences in Lublin



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