Sedimentation and amylase activity in triticale and wheat from six locations in Brazil
1991
Vargas, P.R. | Baier, A.C. (EMBRAPA-CNPT, Passo Fundo, RS (Brazil). National Wheat Research Center)
Samples of 18 triticale and two wheat genotypes grown at six different sites in Brazil were evaluated for amylase activity and gluten quality using Hagberg falling numbers and micro-sedimentation with sodium dodecyl sulphate, respectively. There were significant differences among locations and genotypes in both tests. Triticale scores were lower than those of wheat. Seeds from Passo Fundo (RS) and Cascavel (PR) produced higher sedimentation averages than those from Ponta Grossa (PR), Sao Borja (RS) and Campos Novos (SC). Samples harvested at Passo Fundo and Ponta Grossa had lower amylase activity. Falling numbers of most triticales were lower than 100, whereas wheat exceeded 300 in most samples. Falling numbers of triticale line PFT 8710 (TAPIR/YOGUI//2*MUS) were higher than all triticales at all locations, although wheat presented higher values in most cases. Triticale lines TCEP 851 and TCEP 852 (TATU) presented the highest sedimentation scores among the complete triticales, similar to the best substituted lines. There was significant genotype x environment interaction for sedimentation
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