U četverogodišnjim istraživanjima ispitivan je utjecaj vremena sjetve u četiri roka (prvi rok 20.-25. travnja, drugi rok 01.-05. svibnja, treći rok 10.-15. svibnja i četvrti rok 20.-25. svibnja) i masa tisuću sjemenki u tri varijante (do 300 grama, 300-400 grama i preko 400 grama). U prvom roku sjetve bilo je potrebno najviše dana od sjetve do nicanja, a najmanje u zadnjem roku sjetve, pa je razlika 2,00 dana. Postotak niknulih biljaka i broj biljaka u berbi bio je najniži u prvom roku sjetve, a najveći u zadnjem roku sjetve, pa je razlika iznosila 2,58%, odnosno 3327 biljaka po hektaru. Najveći prirod zrna je dobiven u prvom roku sjetve i iznosio je 8724 kg/ha, u kasnijim rokovima je bio sve manji, a najmanji u zadnjem roku sjetve i iznosio je 8344 kg/ha, pa je razlika iznosila 380 kg/ha. Kod mase sjemena do 300 grama bilo je potrebno najviše dana od sjetve do nicanja, a najmanje kod mase preko 400 grama, pa je razlika iznosila 1,56 dana. Postotak niknulih biljaka i broj biljaka u berbi bio je najmanji kod najmanje mase sjemena do 300 grama, a najveći kod najveće mase sjemena preko 400 grama, pa je razlika iznosila 3,06%, odnosno 3406 biljaka po hektaru. Najveći prirod zrna dobiven je s najvećom masom sjemena od preko 400 grama, a iznosio je 8674 kg/ha, dok je najmanji prinos zrna dobiven kod najmanje mase sjemena do 300 grama i iznosio je 8391 kg/ha, pa je dobivena razlika od 283 kg/ha.In four-year trials we investigated impact of sowing time in four of anting dates (first date 20-25 April, second date 1-5 May, third date 10-15 May and fourth date 20-25 May) and mass of thousand grains in three variants (to 300 gr, 300-400 gr and over 400 gr). In the first planting date the highest number of days was needed between sowing and sprouting, and the lowest number of days was needed in the last planting date, the difference was 2.00 days. Percentage of sprouted plants and number of plants at harvest was the lowest in the first planting date and the highest in the last planting date, difference was 2.58% and 3327 plants per ha respectively. The highest grain yield was obtained in the first planting date and it was 8724 kg/ha, in later dates it was lower and in the last planting date it was the lowest and was 8344 kg/ha, difference was 380 kg/ha. At mass of 300 gr of grains the highest number of days was needed between planting and sprouting, and the lowest number of days was needed at mass of over 400 gr, difference was 1.56 days. Percentage of sprouted plants and number of plants at harvest was the lowest at the lowest mass of grains to 300 gr, and the highest at the highest mass of over 400 gr, difference was 3.06% and 3406 plants per ha respectively. The highest grain yield was obtained with the highest mass grains over 400 gr and it was 8674 kg/ha, while the lowest yield was obtained with the lowest mass of grains to 300 gr and it was 8391 kg/ha, the difference was 283 kg/ha
