Uticaj porekla sadnog materijala i veličine semenske krtole na produktivne osobine krompira

The aim of this study was to determine the impact of the size of tubers originating form different altitudes, on the yield of most commonly grown potato cultivars Cleopatra, Jaerla, Desiree and Kennebec in western Serbia (Macva). Potato seed-producing crop, from which the planting material came from, was grown during 2006 at two sites with different altitude: a plain region 72m a.s.l. and a mountainous region 1100m a.s.l. Evaluating the presence of the two most widespread potato virus (PYV) and (PLRV) in our conditions was performed by ELISA test. The investigation was carried out by planting the following mass of planted material: 50 ± 5g, 70 ± 5g, 90 ± 5g and 110 ± 5g in 2007 year. Higher yields of potato tubers in moist conditions in western Serbia (Macva) was achieved by planting larger mass of tubers originating from the lower altitude and shorter growing season varieties. Cilj rada je bio da se utvrdi uticaj porekla sadnog materijala i veličine semenske krtole na produktivne osobine četiri najčešće gajene sorte krompira Cleopatra, Jaerla, Desiree i Kennebec u uslovima zapadne Srbije (Mačve). Proizvodnja sadnog materijala krompira izvedena je 2006. godine u dva lokaliteta različite nadmorske visine (nv): ravničarskom 72m i planinskom regionu 1100m (nv). Ocena prisustva dva i najraširenija virusa krompira u našim uslovima (PYV) i (PLRV) izvršeno je ELISA testom. Istraživanja su izvedena sadnjom semenskih krtola mase 50 ± 5g, 70 ± 5g, 90 ± 5g i 110 ± 5g tokom 2007. godine. Najveći ukupan prinos krtola od 36,10 t/ha־¹ ostvarila je rana sorta Cleopatra na varijantama gde je sađena najkrupnija frakcije (110g) poreklo sa planinskog područja. Veći prinosi krtola krompira u uslovima prirodnog vodnog režima zapadne Srbije (Mačve) postižu se sadnjom zdravih semenskih krtola veće mase poreklom sa ravničarskog regiona i sorti kraće vegetacije.