Prinosi i važnije pomološko-tehnološke osobine novijihsorti trešnje na podlozi Gisela 5

Abstract

Ispitivane su produktivne i važnije pomološko-tehnološke osobine novijih sorti trešnje i to: Burlat, Summit, New Star, Sunburst, Teranivi, Silvia, Sanburst Sun i Merchant. Navedene sorte su okalemljene na podlozi Gisela 5 i zasađene na rastojanju 5 x 2,2 m (909,1 sadnica/ha). Prosečna krupnoća plodova (visina, širina, debljina) za sve ispitivane sorte bila je 23,9 x 26,2 x 22,7 mm, a koštice 12,2 x 10,3 x 7,9 mm. Prosečna masa plodova za sve ispitivane sorte bila je 8,6 g. Najmanja masa plodova je bila kod sorte New Star (5,7 g), a najveća kod sorte Sunburst i Sanburst Sun (10,0 g). Najmanji randman bio je 88,6% (New Star), a najveći 95,5% (Sanburst Sun). Sadržaj ukupno rastvorljivih suvih materija za ispitivane sorte bio je u proseku 13,7%. Najmanji sadržaj je utrvđen kod sorte New Star (12%), a najveći (15,8%) kod sorte Teranivi. Prosečni prinosi za sve ispitivane sorte je od 15,7 kg/stablu, odnosno 14,3 t/ha. Najmanji prinos je utvrđen kod sorte Teranivi (12,6 kg/stablu) ili 11,40 t/ha, a najveći kod sorte Merchant od 20,7 kg/stablu ili 18,8 t/ha. Prosečni prinosi u prvoj godini ispitivanja bili su veći za 23,1% u odnosu na prinose u drugoj godini.

Some productive and major pomo-tehnological properties of newly bred sweet cherry cultivars 'Burlat', 'Summit', 'New Star', 'Sunburst', 'Teranivi', 'Silvia', 'Sanburst Sun', 'Merchant' have been investigated. The cultivars were grafted on Gisela 5 rootstock, planting distance being 5 x 2.2 m (909.1 plants /ha). The average size of the studied fruits and kernel, which includes length, width and thickness, was as follows: 23.9 x 26.2 x 22.7 mm and 12.2 x 10.3 x 7.9 mm, respectively. The average fruit weight in the studied cultivars was 8.6 g, whereas the lowest and highest fruit weight were evidenced in 'New Star' (5.7 g), and 'Sunburst' and 'Sanburst Sun' (10.0 g) respectively. The lowest fruit ratio was found in 'New Star' (88.6%), and highest in 'Sanburst Sun' (95.5%). Soluble solids content in all the studied cultivars was averagely 13.7%, whereas SSC was lowest in 'New Star' (12%), and highest in 'Teranivi' (15.8%). The average yield in all the studied cultivars was 15.7 kg/tree (14.3 t/ha). The lowest yield was observed in 'Teranivi' (12.6 kg/tree, 11,40 t/ha) and the highest in 'Merchant'(20.7 kg/tree, 18.8 t/ha). The average yield in the first year of investigation was higher by some 23.1% as compared with that in the second year of study.