Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças

Studies on the determination of genetic divergence among genotypes are important tools in breeding programs, contributing to the identification of parents with considerable productive potential. However, little is known about the combinatorial capacity of sweet potato (Ipomoea batatas) accessions an...

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Main Authors: Rosa maria de Deus de Sousa, José Ricardo Peixoto, Geovani Bernardo Amaro, Michelle Sousa Vilela, Paula Andrea Osorio Carmona
Format: Article
Language:English
Published: Universidade Federal de Uberlândia 2019-10-01
Series:Bioscience Journal
Subjects:
Online Access:http://www.seer.ufu.br/index.php/biosciencejournal/article/view/42434
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author Rosa maria de Deus de Sousa
José Ricardo Peixoto
Geovani Bernardo Amaro
Michelle Sousa Vilela
Paula Andrea Osorio Carmona
author_facet Rosa maria de Deus de Sousa
José Ricardo Peixoto
Geovani Bernardo Amaro
Michelle Sousa Vilela
Paula Andrea Osorio Carmona
author_sort Rosa maria de Deus de Sousa
collection DOAJ
description Studies on the determination of genetic divergence among genotypes are important tools in breeding programs, contributing to the identification of parents with considerable productive potential. However, little is known about the combinatorial capacity of sweet potato (Ipomoea batatas) accessions and its adaptation to the different regions of Brazil. The objective of this study was to evaluate the morpho-agronomic traits from 102 sweet potato accessions from the Germplasm Bank of Embrapa Hortaliças. The experiment was laid out as an augmented block design comprised of 102 treatments. Nineteen above ground traits were measured using descriptors for the respective parts. Estimated values of broad sense heritability were high for the traits mean branch length (95.75%), immature leaf color (85.06%), and predominant branch  color (90.57%). Coefficients of environmental variation were below 30.00% for all variables, except for branch weight (51.62%). The 102 clones analyzed presented broad genetic variability for the different traits evaluated, especially for branch weight, and branch length, and mature leaf color.
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spelling doaj.art-e3f93bc9927144d1b8426ae0f7710ae82022-12-21T22:21:50ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632019-10-0135610.14393/BJ-v35n6a2019-4243442434Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliçasRosa maria de Deus de Sousa0José Ricardo Peixoto1Geovani Bernardo Amaro2Michelle Sousa Vilela3Paula Andrea Osorio Carmona4Universidade de Brasília UnBUniversidade de Brasília- UnBCentro Nacional de Pesquisas em Hortaliças-CNPHUniversidade de Brasília- UnBUniversidade de Brasília UnBStudies on the determination of genetic divergence among genotypes are important tools in breeding programs, contributing to the identification of parents with considerable productive potential. However, little is known about the combinatorial capacity of sweet potato (Ipomoea batatas) accessions and its adaptation to the different regions of Brazil. The objective of this study was to evaluate the morpho-agronomic traits from 102 sweet potato accessions from the Germplasm Bank of Embrapa Hortaliças. The experiment was laid out as an augmented block design comprised of 102 treatments. Nineteen above ground traits were measured using descriptors for the respective parts. Estimated values of broad sense heritability were high for the traits mean branch length (95.75%), immature leaf color (85.06%), and predominant branch  color (90.57%). Coefficients of environmental variation were below 30.00% for all variables, except for branch weight (51.62%). The 102 clones analyzed presented broad genetic variability for the different traits evaluated, especially for branch weight, and branch length, and mature leaf color.http://www.seer.ufu.br/index.php/biosciencejournal/article/view/42434genetic parametersgenotypessweet potato vegetative organs
spellingShingle Rosa maria de Deus de Sousa
José Ricardo Peixoto
Geovani Bernardo Amaro
Michelle Sousa Vilela
Paula Andrea Osorio Carmona
Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
Bioscience Journal
genetic parameters
genotypes
sweet potato vegetative organs
title Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
title_full Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
title_fullStr Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
title_full_unstemmed Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
title_short Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
title_sort morphoagronomic characterization of sweet potato accessions from the germplasm bank of embrapa hortalicas
topic genetic parameters
genotypes
sweet potato vegetative organs
url http://www.seer.ufu.br/index.php/biosciencejournal/article/view/42434
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