Qualitative and Quantitative Stability of Winter Wheat Varieties at Different Locations

Abstract

Owing to the significant differences in the adaptability of the Hungarian state-registered varieties, those, which can adapt well to the local conditions, should be given preference. There are several high-yielding varieties available in Hungary with excellent agronomic properties, good adaptability and satisfactory baking quality. This study was conducted to analyse the adaptability of 16 state-registered winter wheat varieties tested in the small plot trials of the National Institute for Agricultural Quality Control (NIAQC) between 1995 and 1997 based on their grain yield and wet gluten content. For the comparison of the varieties the evaluation method of Eberhart and Russel (1966) was applied as modified by Bedő and Balla (1977). The qualitative stability and adaptability values of the varieties differ from the adaptability and stability values calculated from the grain yields.