Faculty of Agrobiotechnical Sciences Osijek and Agricultural Institute Osijek
Abstract
An experiment was conducted aiming to find out the seed production potentiality of 19 local and exotic onion cultivars. The analysis of variance showed significant differences among the genotypes for all characters except sprouting percentage, number of flowers per umbel and number of umbel per bulb. Maximum number of days to 50% bolting (52.67) was exhibited by the genotype G2 and minimum by G6 (27.00 days). The larger bulb size after harvest was obtained from G14 and G19 (18.11 g). Genotypes G4 and G11 required the maximum (16.66) and the minimum (9.00) days for 100% sprouting, respectively. The highest stalk length was found in the genotype G1 (67.23 cm) and the lowest in G8 (38.47 cm). Maximum number (5.75) of stalk was produced by the genotype G7 and minimum number (2.09) of stalk by the genotype G11. The genotype G1 produced the highest number of seeds per umbel (1395.92) and seed yield per plant (4.29 g). The lowest (0.45 g) seed yield per plant and maximum bulb weight was obtained by the genotype G8.Istraživanje je provedeno s ciljem utvrđivanja potencijala sjemenske proizvodnje 19 domaćih i stranih kultivara luka. Analiza varijance pokazala je signifikantne razlike između genotipova za sva svojstva, osim postotka naklijavanja, broja cvjetova po štitastom cvatu i broja štitastog cvata po lukovici. Maksimalan broj dana do 50% naklijavanja (52,67) je svojstvo genotipa G2, a minimalan (27,00 dana) je svojstvo genotipa G6. Nakon vađenja utvrđena je veća lukovica kod genotipova 14 i 19 (18,11 g). Genotipovi G4 i G11 trebali su maksimalno 16,66 dana, odnosno minimalno 9,00 dana za 100% naklijavanja, redosljedom. Genotip G1 imao je najdulju (67,23 cm), a G8 najkraću (38,47 cm) stabljiku. Maksimalan broj stabljika (5,75) ustanovljen je kod genotipa G7, a minimalan (2,09) kod genotipa G11. Ustanovljeno je da G1 ima najveći broj sjemena po štitastom cvatu (1395,92) i prinosa sjemena po biljci (4,29 g). Najniži prinos sjemena (0,45 g), kao i najteža lukovica po biljci dobiveni su od genotipa G8
