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Genetic parameters and gain from selection in sweet potato genotypes with high beta-carotene content

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Title Genetic parameters and gain from selection in sweet potato genotypes with high beta-carotene content
 
Creator Otoboni, M.E.F.
Oliveira, D.J.L.S.F. de
Vargas, P.F.
Pavan, B.E.
Andrade, M.I.
 
Subject ipomoea batatas
genetic variation
yields
population
genotypes
sweet potatoes
genes
 
Description Estimating genetic parameters is an essential procedure to define strategies for breeding and selection of higher yielding genotypes. The use of a selection index can assist in decision making by combining the high yield trait with other desirable traits. The objective of this study was to verify the possibility of gains from selection in a sweet potato population to select potentially promising genotypes. The experiment was conducted in a randomized block design, with three plants per plot and two replications, consisting of 255 sweet potato genotypes and a commercial cultivar (256 treatments). The data were analyzed through REML/BLUP. Genetic gains were evaluated using selection indexes based on the rank sun. The plant population tested showed high genetic variability; 81.25% of the traits had genotypic coefficients of variation above 20%, which indicates conditions favorable to selection with considerable genetic advances. CERAT31-01, CERAT21-02, and CERAT51-30 can be recommended as the most promising genotypes.
 
Date 2020
2021-03-15T03:23:48Z
2021-03-15T03:23:48Z
 
Type Journal Article
 
Identifier Otoboni, M. E. F., Oliveira, D. J. L. S. F., Vargas, P. F., Pavan, B. E., & Andrade, M. I. (2020). Genetic parameters and gain from selection in sweet potato genotypes with high beta-carotene content. Crop Breeding and Applied Biotechnology. ISSN: 1984-7033. 20(3), 9 p.
1984-7033
https://hdl.handle.net/10568/112999
https://doi.org/10.1590/1984-70332020v20n3a42
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 9 p.
 
Publisher FapUNIFESP (SciELO)
 
Source Crop Breeding and Applied Biotechnology