Realized genetic gain in Urochloa hybrids pipeline using ERA trial data
The genetic gain of biomass cover and height in the interspecific Urochloa pipeline was estimated by establishing an ERA trial in two locations in Colombia. Each trial included 150 genotypes from seven cycles of selection in different stages, along with genebank accessions and cultivars. The assessed traits were visual biomass, biomass cover calculated from drone images and height. For the genetic gain estimation, we used a two-stage approach considering only the hybrids in the stage 4, selected after multi location trials in Latin America by the Group Papalotla. All the genetic gain rates were positive in the two sites, with higher values for biomass cover in Llanos. Also, the rates were lower when compared to the ones estimated for resistance to spittlebugs (Hemiptera: Cercopidae), suggesting that the main breeding objective for those selection cycles was increasing the antibiosis and tolerance of the hybrids to this pest. The next step is to perform this assessment for nutritional quality parameters.
Main Authors: | , , , , |
---|---|
Format: | Report biblioteca |
Language: | English |
Published: |
International Center for Tropical Agriculture
2023-11
|
Subjects: | genotypes, biomass, pest resistance, data collection, urochloa, |
Online Access: | https://hdl.handle.net/10568/134851 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-cgspace-10568-134851 |
---|---|
record_format |
koha |
spelling |
dig-cgspace-10568-1348512023-12-23T08:54:23Z Realized genetic gain in Urochloa hybrids pipeline using ERA trial data Espitia, Paula Camelo, Rodrigo Hernández, Luis Miguel Aparicio, Johan Jauregui, Rosa genotypes biomass pest resistance data collection urochloa The genetic gain of biomass cover and height in the interspecific Urochloa pipeline was estimated by establishing an ERA trial in two locations in Colombia. Each trial included 150 genotypes from seven cycles of selection in different stages, along with genebank accessions and cultivars. The assessed traits were visual biomass, biomass cover calculated from drone images and height. For the genetic gain estimation, we used a two-stage approach considering only the hybrids in the stage 4, selected after multi location trials in Latin America by the Group Papalotla. All the genetic gain rates were positive in the two sites, with higher values for biomass cover in Llanos. Also, the rates were lower when compared to the ones estimated for resistance to spittlebugs (Hemiptera: Cercopidae), suggesting that the main breeding objective for those selection cycles was increasing the antibiosis and tolerance of the hybrids to this pest. The next step is to perform this assessment for nutritional quality parameters. 2023-11 2023-11-29T14:20:35Z 2023-11-29T14:20:35Z Report Espitia,P.; Camelo, R.; Hernández, L.M.; Aparicio, J.; Jauregui, R. (2023) Realized genetic gain in Urochloa hybrids pipeline using ERA trial data. Cali (Colombia): International Center for Tropical Agriculture. 8 p. https://hdl.handle.net/10568/134851 en CC-BY-4.0 Open Access 8 p. application/pdf International Center for Tropical Agriculture |
institution |
CGIAR |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-cgspace |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Biblioteca del CGIAR |
language |
English |
topic |
genotypes biomass pest resistance data collection urochloa genotypes biomass pest resistance data collection urochloa |
spellingShingle |
genotypes biomass pest resistance data collection urochloa genotypes biomass pest resistance data collection urochloa Espitia, Paula Camelo, Rodrigo Hernández, Luis Miguel Aparicio, Johan Jauregui, Rosa Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
description |
The genetic gain of biomass cover and height in the interspecific Urochloa pipeline was estimated by establishing an ERA trial in two locations in Colombia. Each trial included 150 genotypes from seven cycles of selection in different stages, along with genebank accessions and cultivars. The assessed traits were visual biomass, biomass cover calculated from drone images and height. For the genetic gain estimation, we used a two-stage approach considering only the hybrids in the stage 4, selected after multi location trials in Latin America by the Group Papalotla. All the genetic gain rates were positive in the two sites, with higher values for biomass cover in Llanos. Also, the rates were lower when compared to the ones estimated for resistance to spittlebugs (Hemiptera: Cercopidae), suggesting that the main breeding objective for those selection cycles was increasing the antibiosis and tolerance of the hybrids to this pest. The next step is to perform this assessment for nutritional quality parameters. |
format |
Report |
topic_facet |
genotypes biomass pest resistance data collection urochloa |
author |
Espitia, Paula Camelo, Rodrigo Hernández, Luis Miguel Aparicio, Johan Jauregui, Rosa |
author_facet |
Espitia, Paula Camelo, Rodrigo Hernández, Luis Miguel Aparicio, Johan Jauregui, Rosa |
author_sort |
Espitia, Paula |
title |
Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
title_short |
Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
title_full |
Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
title_fullStr |
Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
title_full_unstemmed |
Realized genetic gain in Urochloa hybrids pipeline using ERA trial data |
title_sort |
realized genetic gain in urochloa hybrids pipeline using era trial data |
publisher |
International Center for Tropical Agriculture |
publishDate |
2023-11 |
url |
https://hdl.handle.net/10568/134851 |
work_keys_str_mv |
AT espitiapaula realizedgeneticgaininurochloahybridspipelineusingeratrialdata AT camelorodrigo realizedgeneticgaininurochloahybridspipelineusingeratrialdata AT hernandezluismiguel realizedgeneticgaininurochloahybridspipelineusingeratrialdata AT apariciojohan realizedgeneticgaininurochloahybridspipelineusingeratrialdata AT jaureguirosa realizedgeneticgaininurochloahybridspipelineusingeratrialdata |
_version_ |
1787229954893676544 |