Efficiency of methods for conducting segregating populations in the breeding of common beans for protein quality
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Data
2008
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Resumo
Common bean (Phaseolus vulgaris L.) is part of the daily diet of over 300 million people in the world and is a
staple food of low-income populations, due to its high protein content. Many authors have proposed a further improvement
by breeding methods that exploit the existing genetic variability. The objective of this research was to evaluate the genetic
potential of segregating bean populations with variability for several traits and conducted by different breeding methods. The
F2 segregating population was developed from a cross of the parental genotypes CNFC 7812 and CNFC 8056. One hundred
and fifty randomly taken F2 plants originated the segregating populations, which were conducted until the fifth generation by
the following breeding procedures: Single Seed Descent (SSD), Bulk and Bulk within F2. The total grain protein content of the
F5 families was then analyzed. It was concluded that there was enough genetic variability in the cross under study. The Bulk
method proved to be the most efficient since it generated families with superior averages for the trait protein content in
comparison with the other breeding methods.
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Protein content, Bulk, SSD, Bulk within F2 families
Citação
SILVA, Gláucio Freitas Oliveira e et al. Efficiency of methods for conducting segregating populations in the breeding of common beans for protein for protein quality. Crop Breeding and Applied Biotechnology, Viçosa, v. 8, p. 149-154, 2008.