Influence of sowing date on seed yield and quality in onion (Allium cepa L.) by production Seed to Seed method | Uticaj vremena setve na prinos i kvalitet semena crnog luka (Allium cepa L.) u proizvodnji sistemom seme-seme
2006
Ilic, Z., Poljoprivredni fakultet, Lesak (Serbia) | Sunic, Lj., Poljoprivredni fakultet, Lesak (Serbia) | Milenkovic, L., Poljoprivredni fakultet, Lesak (Serbia) | Gvozdanovic-Varga, J., Institut za ratarstvo i povrtarstvo, Novi Sad (Serbia)
The experiment took into account four cultivars origin from different agroclimatic regions, usually grown in Serbia (Prizrenski Pogacar, Kupusinski Jabucar, Trebinjska Kapula and Holandski Zuti). The sowing dates are realised on: July 15, August 5, and August 25. Flowering percentage in the two years was affected by sowing date. Sowing postponment from July to August caused a reduction in the flowered plant from 90% to 40%, which produced only one umbel per plant. Sowing-flowering-seed ripening was reached almost simultaneously after 405-370 days. Seed production was the highest in the first term sowing from July 15 for all cultivars. The cultivars showed differences in both years. Cultivar Kupusinski Jabucar obtained the highest yield in the first term sowing - 440.4 kg/ha (in the first year), while Holandski Zuti obtained significantly lower in the third term from August 25 with only 140.6 kg/ha (in the first year).
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