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Milling and Baking Quality Attributes of Soft Red Winter Wheat Bulk Populations and Derived Lines
Author(s) -
Bruckner Philip L.,
Finney Patrick L.
Publication year - 1992
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1992.0011183x003200050023x
Subject(s) - quality (philosophy) , population , biology , tifton , microbiology and biotechnology , agronomy , physics , forage , demography , quantum mechanics , sociology
Little information is available concerning relationships between milling and baking quality of soft red winter (SRW) wheat ( Triticum aestivum L.) bulk populations and quality of lines derived in subsequent generations. Experiments were conducted to determine if quality evaluation of F 4 bulk populations could provide useful information on quality potential of F 5 lines. This would allow SRW wheat breeders using bulk systems of generation advance to develop appropriate selection strategies. Fifty‐eight F 4 SRW wheat bulk populations were grown at Plains, GA, in 1988–1989. Milling and baking quality of each population was evaluated at the USDA‐ARS Soft Wheat Quality Laboratory. Random F 4:5 headrows from eight populations with diverse F 4 bulk quality characteristics were grown in 1989–1990 at Tifton, GA, and similarly evaluated for milling and baking quality. Except for flour protein concentration, quality attributes of F 4 bulk populations were signficantly correlated with means of F 5 lines derived from each population. Bulk populations with quality deficiencies produced higher proportions of lines with similar quality deficiencies. Higher proportions of lines with adequate and superior quality were identified in progenies of bulk populations having good quality. Milling and baking qualities of F 5 lines derived from populations with only 50% SRW wheat parentage were more variable and less predictable based on F 4 bulk evaluation than quality of F 5 lines derived from populations of 100% SRW wheat parentage. Milling and baking quality of F 4 bulk populations was indicative of the quality and potential of F 5 lines derived from each bulk. Bulk evaluation could be used to cull lowquality‐potential populations before line derivation.