Ispitivanje korelacionih veza nekih parametara biologije cvetanja sorti trešnje (Prunus avium L.)

Abstract

U radu su predstavljeni trogodišnji rezultati ispitivanja karakteristika fenofaze cvetanja i klijavosti polena in vitro 23 sorte trešnje: Asenova rana, Bianca di Verona, Burlat, Čarna, Diana, Durone Nero I, Early Compact Van, Inge, Junskaja ranaja, Kordia, Lambert, Lapins, Margit, Merchant, Negre de Bistrita, Priusadebnaja, Stark Hardy Giant, Stella, Summit, Sunburst, Uriase de Bistrita, Vega i Vista. Izvršena je klasifikacija ispitivanih sorti prema vremenu cvetanja na ranocvetne, srednjeranocvetne, srednjepoznocvetne i poznocvetne sorte. Utvrđena je umerena negativna korelacija između vremena i dužine trajanja fenofaze cvetanja (r = -0,65), i umerena pozitivna korelacija između vremena cvetanja i klijavosti polena in vitro (r = 0,63).

The paper presents three-year results of examination of characteristics of flowering phenophase and in vitro pollen germination in 23 sweet cherry cultivars, viz. 'Asenova Rana', 'Bianca di Verona', 'Burlat', 'Čarna', 'Diana', 'Durone Nero I', 'Early Compact Van', 'Inge', 'Junskaja ranaja', 'Kordia', 'Lambert', 'Lapins', 'Margit', 'Merchant', 'Negre de Bistrita', 'Priusadebnaja', 'Stark Hardy Giant', 'Stella', 'Summit', 'Sunburst', 'Uriase de Bistrita', 'Vega' and 'Vista'. The cultivars were classified based on flowering time as early-flowering, mid-early flowering, mid-late flowering and late-flowering cultivars. Moderate negative correlation between flowering time and duration of phenophase of flowering was identified (r = -0.65) as well as moderate positive correlation between flowering time and in vitro pollen germination (r = 0.63).