Results of a two-year study of Novi Sad sunflower hybrids in small: Plot trials

Abstract

In 2004, conditions for sunflower production were highly favorable and high yields were obtained both in trials and large-scale production (2.34 t/ha). In 2005, however, abundant precipitation throughout the growing season and across most of Vojvodina brought about high incidence of sunflower head rot (Sclerotinia), resulting in yield losses in trials as well as large-scale production (1.8 t/ha). In both study years, when growing season precipitation was close to the long-term average, high yields (over 3 t/ha) were obtained with NS hybrids grown in large-scale production, most notably NS-H-111,NS-H-45, Velja, Banaćanin, Bačvanin, Rimi and others. Even in an unfavorable year such as 2005, the new hybrids Sremac, Somborac and Šumadinac produced significantly higher yields in trials in Vojvodina than the standard sunflower hybrids used in large-scale commercial production. In 2007, the results of the study indicate, there is going to be a significant change in the percentage contribution of individual sunflower hybrids to overall large-scale production of this crop in our country.

Uslovi za proizvodnju suncokreta u 2004. godini su bili veoma povoljni i zato su ostvareni visoki prinosi na nivou ogleda i masovne proizvodnje (2,34 t/ha). Dok, su obilne padavine u toku celog vegetacionog perioda u većem delu Vojvodine dovele do velikog stepena oboljenja suncokreta od bele truleži glave (Sclerotinia) i smanjenja prinosa u ogledima i u masovnoj proizvodnji (1,8 t/ha). U obe godine ispitivanja gde su bile padavine u toku vegetacionog perioda bliske višegodišnjim prosecima ostvareni su visoki prinosi (preko 3 t/ha) sa hibridima koji se nalaze u masovnoj proizvodnji, a pre svega sa NS-H-111, NS-H-45, Velja, Banaćanin, Bačvanin, Rimi i drugim. Sa novim hibridima Sremac, Somborac i Šumadinac i u nepovoljnoj 2005. godini u ogledima u Vojvodini su ostvareni značajno veći prinosi od standardnih hibrida koji se nalaze u masovnoj proizvodnji. Na osnovu ovih rezultata treba istaći da će doći u 2007. godini do značajne izmene zastupljenosti pojedinih hibrida u masovnoj proizvodnji suncokreta u našoj zemlji.