Genetic potentials of wheat flour RVA pasting characteristics and cluster analysis
Tao Li, Xu ChenWu, Zhiqiu Hu, Sun Changsen, Gang Li, Shiliang Gu · Life Science Research · 2001
Seven RVA (Rapid Visco-Analyser) parameters of eighty-four wheat varieties (lines) were analyzed, the results showed: different varieties (lines) possessed significantly different RVA paste visco-properties; all the RVA paste visco-properties had high broad heretability; eighty0four varieties (lines) were clustered into three characteristically different groups based on seven RVA parameters, which had the similar clustering results if based on only peak viscosity, trough viscosity and final viscosity of them. Those varieties (lines) which had similar ecological origins clustered, that is, the majority of varieties from southern areas gathered, which exhibited higher RVA parameters and lower coefficients of variation, and mot of varieties from northern areas and Canada had similar tendency, but they were characteristics of lower RVA parameters and higher coefficients of variation. The rest flocked together, which showed the lowest RVA parameters and highest coefficients of variation, and in this group, final viscosity was higher than or close to peak viscosity. The RVA paste visco-properties of three different groups had the following tendency: Group I (mainly from southern areas)>Group II (mainly from northern areas)>Group III (special group).