Varijabilnost visine stabla i prečnika glave različitih inbred linija suncokreta

Abstract

Gajeni suncokret (Helianthus annuus L.) poseduje usku genetičku varijabilnost usled malog broja predaka od kojih je nastao. Povećanje genetičke varijabilnosti suncokreta postiže se ukrštanjem postojećih genotipova u cilju rekombinacije gena. Cilj ovog rada je bio da se ispita varijabilnost visine stabla i prečnika glave 93 inbred linije suncokreta stvorene na Institutu za ratarstvo i povrtarstvo u Novim Sadu, i da se formiraju grupe odabranih inbred linija na osnovu njihove sličnosti. Ogled je postavljen u blok sistemu sa tri ponavljanja, na oglednom polju Rimski Šanĉevi, Instituta za ratarstvo i povrtarstvo, a merenje visine stabla i prečnika glave je vršeno tokom faze fiziološke zrelosti za svaku liniju.

Cultivated sunflower (Helianthus annuus L.) has narrow genetic variability as the result of a small number of ancestors. It is possible to increase genetic variability by crossing existing genotypes in order to achieve new gene recombination. The aim of this research was to examine variability and create groups for stem height and head diameter of 93 sunflower lines created in Institute of Field and Vegetable Crops in Novi Sad (IFVCNS). The trial was organized in block design with three replications, at experimental field Rimski Šanĉevi of IFVCNS. Stem height and head diameter were measured during the phase of physiological maturity for each line separately.