Potential of soybean crosses in early inbreeding generations for grain yield

Potential of soybean crosses in early inbreeding generations for grain yield

Abstract The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number of days to flowering (NDF), number of days to maturity (NDM), plant height at maturity (PHM), and grain yield (GY). Results indicated genetic variability between the parents and between the crosses. For GY, six (37.5%) parents stood out with high yield. The GCA and SCA estimates were significant for all traits, revealing additive and non-additive effects. The parent USP 04-17.027 (4) was superior for presenting the highest means, heritability, and GCA. The cross (4x13 = USP 04-17.027 x USP 231-2224-12) stood out owing to the highest SCA for GY.

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Main Authors: Rocha,Gabriela Antônia de Freitas, Pereira,Fernanda Aparecida de Castro, Vello,Natal Antonio
Format: Digital revista
Language:English
Published: Crop Breeding and Applied Biotechnology 2018
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000300267
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spelling oai:scielo:S1984-703320180003002672018-07-05Potential of soybean crosses in early inbreeding generations for grain yieldRocha,Gabriela Antônia de FreitasPereira,Fernanda Aparecida de CastroVello,Natal Antonio Glycine max diallel analysis combining ability partial diallel genetics parameters Abstract The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number of days to flowering (NDF), number of days to maturity (NDM), plant height at maturity (PHM), and grain yield (GY). Results indicated genetic variability between the parents and between the crosses. For GY, six (37.5%) parents stood out with high yield. The GCA and SCA estimates were significant for all traits, revealing additive and non-additive effects. The parent USP 04-17.027 (4) was superior for presenting the highest means, heritability, and GCA. The cross (4x13 = USP 04-17.027 x USP 231-2224-12) stood out owing to the highest SCA for GY.info:eu-repo/semantics/openAccessCrop Breeding and Applied BiotechnologyCrop Breeding and Applied Biotechnology v.18 n.3 20182018-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000300267en10.1590/1984-70332018v18n3a40
institution SCIELO
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country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language English
format Digital
author Rocha,Gabriela Antônia de Freitas
Pereira,Fernanda Aparecida de Castro
Vello,Natal Antonio
spellingShingle Rocha,Gabriela Antônia de Freitas
Pereira,Fernanda Aparecida de Castro
Vello,Natal Antonio
Potential of soybean crosses in early inbreeding generations for grain yield
author_facet Rocha,Gabriela Antônia de Freitas
Pereira,Fernanda Aparecida de Castro
Vello,Natal Antonio
author_sort Rocha,Gabriela Antônia de Freitas
title Potential of soybean crosses in early inbreeding generations for grain yield
title_short Potential of soybean crosses in early inbreeding generations for grain yield
title_full Potential of soybean crosses in early inbreeding generations for grain yield
title_fullStr Potential of soybean crosses in early inbreeding generations for grain yield
title_full_unstemmed Potential of soybean crosses in early inbreeding generations for grain yield
title_sort potential of soybean crosses in early inbreeding generations for grain yield
description Abstract The present study aimed to evaluate the combining ability of 16 soybean genotypes using a partial diallel. Two experiments were carried out to estimate the general (GCA) and specific (SCA) combining ability, one with 64 crosses and the other with 16 parents. At the R8 stage, F2 plants and the parents were evaluated for the following traits: number of days to flowering (NDF), number of days to maturity (NDM), plant height at maturity (PHM), and grain yield (GY). Results indicated genetic variability between the parents and between the crosses. For GY, six (37.5%) parents stood out with high yield. The GCA and SCA estimates were significant for all traits, revealing additive and non-additive effects. The parent USP 04-17.027 (4) was superior for presenting the highest means, heritability, and GCA. The cross (4x13 = USP 04-17.027 x USP 231-2224-12) stood out owing to the highest SCA for GY.
publisher Crop Breeding and Applied Biotechnology
publishDate 2018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332018000300267
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