Title:	Selection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee.
Authors:	CARVALHO, H. F. SILVA, F. L. da RESENDE, M. D. V. de BHERING, L. L.
Affiliation:	Humberto Fanelli Carvalho, Instituto Agronômico; Felipe Lopes da Silva, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Leonardo Lopes Bhering, UFV.
Date Issued:	2019
Citation:	Bragantia, Campinas, v. 78, n. 1, p. 52-59, Jan./Mar. 2019.
Description:	Selection of hybrid coffee plants coming from crosses between divergent populations is particularly relevant for the success of breeding programs. This study aimed to outline the best selection strategy in a hybrid population of Coffea canephora var. kouilou and robusta by estimating intrapopulation genetic parameters. Twenty full-sib progenies obtained by North Caroline II were installed in a randomized complete blocks design, with one plant per elementary plot. The following traits were evaluated: vegetative vigor, reaction to rust, plant height, diameter of canopy projection, maturity time, and bean yield. Significant individual genotypic variance and heritability estimates lead to an effective selection. The multi-trait selection index carried out between progenies and at individual level provided 5% and 40% gain, respectively. Thus, intrapopulation selection in a hybrid population is a viable strategy for the selection of superior individuals to compose new crosses and clones for cultivars in the breeding program of C. canephora, even with unbalanced data.
Thesagro:	Coffea Canephora Café
Keywords:	Mixed models Multi-trait index Intrapopulation selection
DOI:	10.1590/1678-4499.2018124
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPF)