Technological characteristics of roots of F1 sugar beet hybrids and their correlations with the technological characteristics of their parents roots

Abstract

Used in this study were 16 F1 hybrids of sugar and their parents. The roots were analyzed to determine sugar content and levels of non-sugars (potassium, sodium, a-amino nitrogen), and these data were then used to calculate the sugar utilization percentage. Correlation analysis was used to determine to what extent the studied traits of the F1 hybrids were connected with those of the parents. Sugar content, sugar utilization percentage, and potassium content of the F1 hybrids were strongly positively correlated with the same traits of the male parent (r>0.60), while their correlation with these traits in the female parent was very weak (r lt 0.15). Sodium and a-amino nitrogen contents of the F1 hybrids were equally positively, though not too strongly, correlated with the same traits of both parental components (r=0.32-0.42). Sugar content and sugar utilization percentage of the F1 hybrids were more strongly correlated with these traits in the tetraploid parents (r=0.88 and 0.89) than in the diploid ones (r=0.73 and 0.79). Potassium and a-amino nitrogen contents of the F1 hybrids were equally correlated with these traits in both groups of male parents, while the sodium content of the F1 hybrids was in a considerably stronger correlation with the same content of the diploid male parents.

Korelacionom analizom utvrđen je stepen povezanosti tehnoloških svojstava korena F1 hibrida šećerne repe sa istim svojstvima roditelja. Sadržaj šećera, iskorišćenje šećera na repu i sadržaj kalijuma F1 hibrida bili su u veoma jakoj pozitivnoj korelaciji sa istim svojstvima očevih komponenti, dok je njihova korelacija sa istim svojstvima majčinskih komponenti bila veoma slaba. Sadržaj natrijuma i a-amino azota F1 hibrida bili su u podjednako pozitivnoj korelaciji sa istim svojstvima obe roditeljske komponente. Sadržaj šećera i iskorišćenje šećera na repu F1 hibrida bili su u jačoj korelacionoj vezi sa istim svojstvima tetraploidnih očeva nego sa navedenim svojstvima diploidnih očeva. Sadržaj kalijuma i a-amino azota F1 hibrida bili su u podjednakoj korelacionoj vezi sa istim svojstvima obe grupe očeva, dok je sadržaj natrijuma F1 hibrida bio u znatno jačoj korelaciji sa istim svojstvima diploidnih očeva.