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GrainGenes Reference Report: SFA-79-1823

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Reference	SFA-79-1823
Title	Effects of cultivar and soil fertility on grain protein yield, grain protein content, flour yield and breadmaking quality of wheat
Journal	Journal of the Science of Food and Agriculture
Year	1999
Volume	79
Pages	1823-1831
Author	Metho LA Taylor JRN Hammes PS Randall PG
Abstract	Grain protein content affects the flour yield and breadmaking characteristics of wheat (Triticum aestivum L). In this study, grain protein yield, grain protein content, flour yield and loaf volume were quantified for four wheat cultivars (Inia, Carina, Kariega and SST 86) grown under six different soil fertility regimes in a long-term fertilisation and irrigation experiment at the University of Pretoria. The experimental design was a randomised complete block replicated four times, with fertility as the main plots and cultivars as the subplot treatments. Grain protein yield, flour yield, loaf volume and mixograph dough peak mixing time varied among cultivars and soil fertility situations. Grain protein content differed among cultivars, but mixograph water absorption and dough characteristics did not differ. The highest grain protein yield was 873 kg ha(-1) for Carina and the lowest 527 kg ha(-1) for SST 86. Grain protein content averaged 131g kg(-1) for Carina and 122g kg(-1) for Kariega. Breadmaking performance showed that in a well-balanced soil fertility situation, Kariega produced 1025 cm(3) of loaf volume while Inia averaged 950 cm(3). Grain protein yield increased with increasing soil fertility, but grain protein content, flour yield, loaf volume, water absorption and mixograph peak mixing time varied with soil fertility. The interaction between cultivar and soil fertility was significant for grain protein yield, grain protein content, flour yield, loaf volume and water absorption but not dough peak mixing time. The results indicate cultivar differences in breadmaking quality characteristics and that soil fertility status affects grain protein yield, grain protein content, flour yield, loaf volume potential and water absorption but not mixograph peak mixing time and dough characteristics
Keyword	[ Hide all but 1 of 34 ] ammonium baking quality breadmaking breadmaking quality crop yield cultivar differences design dough fertility flour glutenin grain protein mixing mixograph nitrate nitrogen nitrogen phosphorus fertilizers nitrogen potassium fertilizers npk fertilizers performance phosphorus phosphorus potassium fertilizers potassium protein content quality rheology soil soil fertility triticum aestivum volume water wheat cultivar wheat flour yield

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