ANALYSISOF DISTINCTNESS, UNIFORMITYANDSTABILITY INCROATIANWHEAT VARIETIES

Abstract

Cilj provedenog istraţivanja bio je ispitati, prema DUS vodiču za pšenicu, osam svojstava biljke i klasa u djelu hrvatskog sortimenta pšenice. U istraţivanje je uključeno 20 hrvatskih sorata pšenice priznatih u razdoblju od 1936. godine do 2008. godine. Morfološka svojstva mjerena su na 25 slučajno odabranih biljaka. Osam mjerenih svojstava uključivalo je: tip busanja, voštanu prevlaku na rukavcu lista zastavičara, voštanost klasa, visinu biljke, gustoću klasa, duljinu klasa, boju klasa i boju zrna. Sorte su se razlikovale u svim mjerenim svojstvima osim u svojstvu boje klasa za koje je kod svih sorata zabiljeţena bijela boja. Analizom dobivenih rezultata utvrĎena je najveća sličnost, obzirom na ispitivana morfološka svojstva, izmeĎu sorti Katarina i Divana, Srpanjka i Renata, Superţitarka i Zlata te Ţitarka i Sana. U odnosu na ostale sorte uključene u istraţivanje, sorte BC Elvira, U1, Ruţica i Felix izdvojeni su kao najrazličitiji obzirom na ispitivana morfološka svojstva.The aim of this study was to examine eight plant and ear traits in some Croatian wheat varieties, acccording to DUS testing guidelines for wheat. The study included 20 Croatian wheat varieties released between 1936 and 2008. Morphological traits were measured on 25 randomly selected plants. Measured traits were: growth habit, flag leaf blade glaucosity, earglaucosity, plant height,ear density, ear length, ear colour and grain colour. Analysed wheat varieties differed in all examined traits except of ear colour, for which white colour was determined in all analysed varieties. Based on examined morphological traits the greatest similiarity was obtained between wheat varieties Katarina and Divana, Srpanjka and Renata, Superţitarka and Zlata, Ţitarka and Sana. Regarding to other analysed varieties, wheat varieties BC Elvira, U1, Ruţica and Felix were determined as the most diverse, based on the examined morphological traits