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Osetljivost uljane repice prema količini soli u zemljištu nije ista u svim fazama njenog porasta. Najosetljivije su biljke u fazi klijanja i nicanja. Cilj ovog istraživanja je bio da se utvrdi uticaj različitih koncentracija soli NaCl (0 mmol/l,125 mmol/l,175 mmol/l,250 mmol/l) na klijavost semena, srednje vreme klijanja semena, vigor indeks, dužinu ponika i svežu masu ponika kod semena tri genotipa uljane repice (Anna, Slavica, Ilia). Iz dobijenih rezultata se uočava da niže koncentracije NaCl biljke mogu da tolerišu i one ne utiču negativno, dok visoke koncentracije ispoljavaju negativan uticaj na ispitivane parametare. Sensitivity of oilrape towards the quantity of the salt in the soil is not the same in all its growth stages. The most sensitive are the plants in the initial stages – germination and emergence. The aim of this investigation was to determine the influence of various NaCl concentrations (0 mmol/l,125 mmol/l,175 mmol/l,250 mmol/l) to seed germination, means daily germination seed, vigor index, seedling length and fresh mass of seedling in the seed of three oilrape genotypes (Anna, Slavica and Ilia). From the obtained results it can be seen that plants can tolerate lower NaCl concentrations, which have no negative effects, while high NaCl concentrations exert negative effects on the tested parameters.

Due to its composition the oilseed rape is widely used in the production of oil, animal feed and biodisel production. Due to a wide range of rapeseed use, the aim of this paper was to determine the influence of genotype, production year and planting density on seed germination, seed moisture content, mass of 1000 seed, hectoliter mass, seed yield per plot, and oil and protein content in the seed. Tests were carried out on four rapeseed genotypes sown at a distance of 5 cm (80 plants/m2), 10 cm (40 plants/m2), 15 cm (27 plants/m2) and 20 cm (20 plants/m2) within the raw during 2007/2008 and 2008/2009 vegetation period. Seed germination, hectoliter mass and seed yield depended on production year, mass of 1000 seeds depended on genotype, plant density and production year, while the oil and protein content depended on genotype and production year. Uljana repica, zbog svog sirovinskog sastava nalazi veliku primenu u proizvodnji ulja, ishrani domaćih životinja i proizvodnji biodizela. Cilj istraživanja je bio da se utvrdi uticaj gustine setve, tj. različitog razmaka biljaka unutar reda na kvalitet semena i komponente prinosa četiri sorte ozime uljane repice proizvedene u dve vegetacione sezone. Ispitivanja su izvršena na četiri genotipa uljane repice (Slavica, NS-L-7, Artus, NS-L-21), posejane sa razmakom u redu od 5 cm (80 biljaka /m2), 10 cm (40 Biljaka /m2), 15 cm (27 biljaka /m2) i 20 cm (20 biljaka /m2) u vegetacionim sezonama 2007/2008. i 2008/2009. godina. Nakon žetve utvrđeni su prinos semena po parceli, hektolitarska masa, masa 1000 semena, sadržaj vlage u semenu, klijavost semena, sadržaj ulja i sadržaj ukupnih proteina. Klijavost semena ispitivanih genotipova uljane repice proizvedene u vegetacionoj sezoni 2007/2008. je bila viša od klijavosti semena proizvedenog 2008/2009. Uticaj različitih gustina setve, na ispitivani parametar, nije utvrđen. Sadržaj vlage nije zavisio od genotipa, niti od gustine setve. Masa 1000 semena zavisila je od godine proizvodnje i genotipa. U zavisnosti od godine proizvodnje, ispitivani genotipovi, su različito reagovali na gustinu setve i dobijeno je seme sa različitom masom 1000 semena. Prinos semena uljane repice nije zavisio od genotipa i gustine setve, a zavisili su od godine proizvodnje. Sadržaj ulja i proteina u semenu zavisio je od genotipa i godine proizvodnje.

Great fluctuations of yield and quality of seed among localities, as well as between the years, most often due to water lacking during formation and filling of seed, are present under our production conditions. Since soybean seed is produced under different agroecological conditions, the aim of this paper was to determine the parameters relating to quality seed (purity, germination, moisture content, and mass of 1000 seeds) produced in 2006. and 2007, respectively. Production conditions in 2006. were relatively favorable for soybean seed production, which resulted in high quality seeds. Seed purity of tested varieties ranged from 98,8% to 99,6%. Germination of seed was high above the prescribed minimal value (75%), and ranged from 91 to 95%. Agro-meteorological conditions in 2007. were unfavorable for soybean production due to lacking and poor distribution of rainfalls, and high temperatures, especially during formation, and filling of seed. Unfavorable production conditions had negative influence on seed purity which ranged from 97,9 to 98,9%. Germination of seed ranged from 78% to 89% and depended on the variety. The data showed that drought significantly reduces the quality of soybean seed (seed purity, germination viability, germinability and mass of 1000 seeds). Visina prinosa i kvalitet semena soje varira iz godine u godinu i u direktnoj je zavisnosti od količine padavina i temperature vazduha u vreme cvetanja, formiranja mahuna i nalivanja zrna. Sušnih godina prinosi soje su manji, a samim tim i kvalitet semena je lošiji. Stoga je cilj ovog istraživanja da se analizira uticaj agrometeoroloških uslova na kvalitet semena soje (čistoća, klijavost, sadržaj vlage i masa 1000 semena) proizvedenog u 2006. i 2007. godini. Proizvodni uslovi u 2006. godini bili su relativno povoljni za proizvodnju soje, što se odrazilo i na visok kvalitet semena. Čistoća semena, kod ispitivanih sorti, bila je 98,8 do 99,6%. Klijavost semena je bila znatno iznad propisane minimalne vrednosti (75%) i iznosila je 91% do 95%. Agrometeorološki uslovi u 2007. godini bili su nepovoljni za proizvodnju soje zbog nedostatka i lošeg rasporeda padavina, kao i visokih temperatura, posebno u vreme formiranja i nalivanja zrna. Nepovoljni uslovi proizvodnje negativno su uticali na čistoću semena koja je bila 97,9 do 98,9%. Klijavost semena se kretala od 78 do 89%, a zavisila je od sorte. Dobijeni podaci pokazuju da suša značajno snižava kvalitet semena soje (čistoća semena, energija klijanja, klijavost i masa 1000 semena).