Multivariate assessment of environmental effects on hard red winter wheat. II. Canonical correlation and canonical variate analysis of yield, biochemical and bread-making characteristics
作者:
van LiliD.,
PurchaseJ.L.,
SmithMarieF.,
AgenbagG.A.,
De VilliersO.T.,
期刊:
South African Journal of Plant and Soil
(Taylor Available online 1995)
卷期:
Volume 12,
issue 4
页码: 164-169
ISSN:0257-1862
年代: 1995
DOI:10.1080/02571862.1995.10634358
出版商: Taylor&Francis Group
关键词: Bread-making quality;canonical correlation;canonical variates;protein composition;genotype×environment interaction;yield
数据来源: Taylor
摘要:
The inconsistent production of winter wheat with acceptable bread-making quality in the Free State reduces the commercial value of the wheat crop. In the second part of this study, canonical correlation analysis was used to determine to what extent variation of biochemical components in wheat flours was responsible for differences in bread-making quality. In addition, the effects of environmental variables such as climate, crop history and edaphic attributes on yield, rheological and biochemical traits were examined by means of canonical variate analysis. It appeared that climatic factors contributed most to variation in yield and quality characteristics. Favourable conditions during the grain-filling period improved yield and modified storage and monomeric protein ratios. Modifications under stress-related conditions, however, were not sufficient to influence mixing requirement or baking quality.
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