Characteristics of one-year-old shoots of peach hybrids from the crossing combination Flaminia x Hale Tardiva Spadoni

Abstract

The results of two-year research (2011-2012) of the most important morphological characteristics of 1-year-old shoots in eight peach hybrids obtained from a crossing combination Flaminia x Hale Tardiva Spadoni were shown in this paper. The following characteristics were studied in tested hybrids: length and diameter of shoots, internode length, number of flowers and vegetative buds per shoot, ratio of flower to vegetative buds, number of flower buds per node and 1-m length of a shoot. The properties of sylleptic shoots on one-year-old shoots have also been studied. The significant differences were determined among the hybrids for parameters such as the diameter of shoots, internode length, number of flower and vegetative buds per shoot. Hybrids FH1 and FH6 were characterized by the highest density of flower buds, so that they are singled out as potentially the most yielding. These hybrids may be of interest for growing in areas where there is a risk of frost and in the domain of breeding when creating new peach cultivars of high yield potential.

U ovom radu prikazani su rezultati dvogodišnjih istraživanja (2011­2012) najvažnijih morfoloških osobina mešovitih rodnih grančica kod osam hibrida breskve dobijenih iz kombinacije ukrštanja Flaminia x Hale Tardiva Spadoni. Kod ispitivanih hibrida proučavane su sledeće osobine: dužina i prečnik grančica, dužina internodija, broj cvetnih i vegetativnih pupoljka po grančici, odnos cvetnih i vegetativnih pupoljaka, broj cvetnih pupoljaka po nodusu i 1 m dužine grančice. Takođe su proučavane i osobine prevremenih grančica koje se nalaze na mešovitim rodnim grančicama. Za parametre kao što su prečnik grančice, dužina internodija, broj cvetnih i vegetativnih pupoljaka na grančici utvrđene su značajne razlike između ispitivanih hibrida. Hibridi FH1 i FH6 su se odlikovali najvećom gustinom cvetnih pupoljaka, tako da su oni izdvojeni kao potencijalno najrodniji. Ovi hibridi mogu biti interesantni za gajenje u područjima gde postoji opasnost od pojave mrazeva i u oplemenjivanju prilikom stvaranja novih sorti breskve visokog rodnog potencijala.