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Multi-seeded onions. I. Suitability of multi-seeded transplants for production of dry onions under Polish conditions

Tadeusz Wojtaszek, Franciszek Bednarz, Małgorzata Poniedziałek

Institute of Vegetables and Ornamental Plants
Faculty of Horticulture, Agricultural University
29 Listopada 54, 31-425 Kraków, Poland

The results of the first Polish trials on multi-seeded onions are reported. Seedlings were raised in peat blocks with a target population of 5 plants/block. In a two-year experiment there was for transplants an increase in marketable yield of 17.6 and 20.9 t/ha when planted at 50 and 66.6 plants per m2 respectively, as compared with direct drilling at a target density of 80-85 plants/m2. At a target density of 83.3 plants/m2 and with a 10-day interval in sowing and transplanting dates, no significant differences in yield were found between the crops transplanted on 19 and 29 April, but the crop direct drilled on 6 April gave a significantly higher yield than that drilled on 16 April. Early planting of transplants (26 April) and large block size (120 ccs) increased the marketable yield of multi-seeded onions by 6% and 8% respectively in comparison with late planting (6 May) and small block size (60 ccs).

Wojtaszek T., Bednarz F., Poniedziałek M., 1992. Multi-seeded onions. I. Suitability of multi-seeded transplants for production of dry onions under Polish conditions. Folia Horticulturae IV/1: 59-70.