Stability of Quality Traits in Spring Cereals Cultivated under the Growing Conditions of Southern Finland
Titel:
Stability of Quality Traits in Spring Cereals Cultivated under the Growing Conditions of Southern Finland
Auteur:
Peltonen-Sainio, Pirjo Peltonen, Jari
Verschenen in:
Acta agriculturae Scandinavica. Section B, Soil and plant science
Paginering:
Jaargang 43 (1993) nr. 1 pagina's 45-52
Jaar:
1993-03-01
Inhoud:
High-quality cereal grains are annually required for processing in the food and feed industry. Therefore, the present study focuses on the evaluation of the phenotypic stability of some important quality characteristics of barley, oats and spring wheat cultivars on the basis of 41, 38 and 21 field experiments, respectively. Field trials were carried out at the Experimental Farms of Hankkija Plant Breeding Institute (Anttila and Nikkila) over seven successive years (1982-88). The stability of the quality characteristics was examined using the Finlay-Wilkinson regression method and the Eberhart-Russell stability analysis, both widely used in evaluations of yield stability. In the present study genotype × environment (G × E) interaction was insignificant in the protein concentration of barley; 1000 grain weight, hectolitre weight, protein yield and husk content of oats; as well as hectolitre weight, Zeleny sedimentation volume, and falling number of wheat. Therefore, for these particular quality traits, the cultivars included in this study responded in a similar fashion to varying growing conditions. In contrast, 1000 grain weight, hectolitre weight and protein yield of barley, protein concentration of oats, and 1000 grain weight, protein concentration and protein yield of wheat indicated a significant G × E interaction. Phenotypic stability of these latter quality traits in different spring cereal cultivars is compared and discussed in more detail.
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