A Study on the Rheological Properties of T. aestivum Germplasm from Different Geographic Areas

D. BOYADJIEVA, V. DACHEVA and M. MUNGOVA

Institute of Plant Genetic Resources, Wheat Breeding Department, BG-4122 Sadovo-Plovdiv, Bulgaria

Abstract

BOYADJIEVA, D., V. DACHEVA and M. MUNGOVA, 1999. A study of the rheological properties of T. aestivum germplasm from different geographic areas. Bulg. J. Agric. Sci., 5: 703-712

The rheological properties of 64 T. aestivum L. cultivars from different geographic areas have been studied in 1996 and 1997 by Valorigraph and Alveograph analysis.
The cultivars with best quality characteristics were : for East Europe Russian cultivars group Nika Kubani, 85-108a146, 87-28ag-38; Rumanian cultivars Flamura 80 and F 4105-W-2-1; Bulgarian lines and cultivars OT1613/86-64, Pobeda, 86-52, KC 550 /Gratchija and the Hungarian cultivar Mv 08-85. From West Europe those were the French cultivars Bonpain 15, Goya, Fornie, Chopin and the Swiss cultivar Arina. From North America a. USA, Canada- SxL/Glennson (USA) and b. Mexico- Tepoca and from the United group Tugella-DN( South Africa) and 85- Zhong 56 (China).
Hierarchical cluster analysis, single linkage, Euclidian distances were used for establishing the similarity between the cultivars for the characters under study and their classification.
Cultivars with high quality characteristics and genetically distant like Tugella DN (South Africa), Andain, Bonpain 15, Goya and Fornie (France), Flamura 80 (Romania), and Nika Kubany, 85-08a146 and 87-28ag-38 (Russia) migh be of interest to future breeding programes.

Key words: T. aestivum L., rheological properties, geographic groups, cluster analysis