GrainGenes Reference Report: CRS-39-649
Reference
CRS-39-649
Title
End-use quality performance and stability of 1A vs. 1AL.1RS genotypes derived from winter wheat 'Nekota'.
Journal
Crop Science
Year
1999
Volume
39
Pages
649-654
Author
[ Hide all but 1 of 6 ] Espitia-Rangel E Baenziger PS Shelton DR Graybosch RA Moreno-Sevilla B Peterson CJ
Abstract
Summary: Chromosomal translocations between wheat (Triticum aestivum L.) and rye (Secale cereale L.) have been associated with an increase in grain yield and a decrease in end-use quality in hard red winter wheat. Although demonstrated with a 1BL.1RS translocation, less information is available regarding the effect of 1AL.1RS translocations. The objective of this study was to determine the effect of a 1AL.1RS translocation in hard red winter wheat on end-use quality traits and their stability across environments. From the heterogeneous 1AL.1RS wheat cultivar Nekota, 18 homogeneous 1A lines (non-1RS), 16 1AL.1RS lines, four composites (1A, 1AL.1RS, 1AL.1RS+1A, and Nekota), and six cultivars were tested in eight Nebraska environments. The 1AL.1RS translocation increased flour protein content (5.5 mg g(-1)), but decreased flour yield (14.2 g kg(-1)), Mixograph mixing time (from 2.9-2.7 min), and Mixograph mixing tolerance rating (from 3.5-3.1). Despite higher flour protein content in 1AL.1RS lines, the 1AL.1RS translocation did not enhance other end-use quality traits. On the basis of linear regression, the 1A and 1AL.1RS lines had similar stability values for flour yield and flour protein content. The 1A lines showed higher flour yield in all environments, while the 1AL-1RS lines had higher flour protein content in all environments. For Mixograph mixing time and mixing tolerance, the 1A lines were more responsive to the environment, while the 1AL.1RS lines had exceptional stability over all environments. The end-use quality of Nekota can be explained by a mixture of 1A lines with acceptable to good quality and 1AL.1RS lines with poor to acceptable quality
External Databases
http://link.springer.de/link/service/journals/10088/bibs/39n3p649.html
Keyword
crop quality
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: CRS-39-649
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||