Estimates of genetic parameters and path analysis of crambe: An important oil plant for biofuel production

Crambe is an oilseed plant producing oil that can be used for various industrial purposes, including the production of biofuel. It is a short-cycle, non-food plant that can be grown as a second crop following soybean or corn crops and using the same agricultural machinery. This work aimed to estimat...

Descripción completa

Detalles Bibliográficos
Autores: Vasconcelos, Ubieli Alves Araújo, Dias, Luiz Antônio dos Santos, Corrêa, Thais Roseli, Rosmaninho, Lucas Barbosa de Castro, Silva, Dandara Rêgo Muniz da, Zaidan, Iasmine Ramos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Institución:Universidade Estadual de Maringá (UEM)
Repositorio:Acta Scientiarum. Agronomy (Online)
Idioma:inglés
OAI Identifier:oai:periodicos.uem.br/ojs:article/42490
Acceso en línea:http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/42490
Access Level:acceso abierto
Palabra clave:breeding; biofuels; oleaginous plants; brassicaceae
Descripción
Sumario:Crambe is an oilseed plant producing oil that can be used for various industrial purposes, including the production of biofuel. It is a short-cycle, non-food plant that can be grown as a second crop following soybean or corn crops and using the same agricultural machinery. This work aimed to estimate genetic parameters and correlations between traits of genotypes grown for two years in seven locations in two Brazilian states. The cultivar FMS Brilhante and the lines CR 1101, CR 1102, CR 1105, CR 1202, CR 1303, and CR 1304 were used. The traits evaluated were grain yield (YD), plant height (PH), stem diameter (SD), first fruiting branch height (BH), 1,000-seed weight (SW), and number of branches (NB). The correlations between traits were identified from the phenotypic covariance matrix through path analysis. Based on the joint analysis, the interaction of genotypes x years x locations was observed. Expressive genetic variability was verified for all evaluated traits, which allows gains to be made with the selection of genotypes. High broad-sense heritabilities based on plot means were verified for YD, BH, and SW (82, 84 and 77%, respectively), which indicates the possibility of directly selecting them. SW and SD showed the greatest direct effects and strongest correlations with YD.