TITLE:
Estimation of Genetic Parameters of Turiaçu Pineapple Clones and Genetic Correlation between Traits
AUTHORS:
Guilherme Barbosa Abreu, Marcos Miranda Toledo, Marcelo Mattos Cavallari, José Ribamar Gusmão Araújo, Antônia Alice Costa Rodrigues, Luiz Gustavo de Lima Melo, Augusto César Vieira Neves Júnior
KEYWORDS:
Quantitative Genetics, Plant Breeding, Ananas comosus
JOURNAL NAME:
Agricultural Sciences,
Vol.8 No.11,
November
13,
2017
ABSTRACT: This study aimed to estimate genetic parameters of Turiaçu pineapple clones using mixed models; and estimate genetic correlation coefficient between traits, to provide important information to breeding programs. For this, 19 pineapple plants were visually selected and its slips were collected and planted in a single environment and nine traits were evaluated. The genetic parameters of most evaluated traits presented significant differences between the 19 clones. Some traits, such as Fusarium wilt resistance, showed high magnitudes of heritability. Clones did not differ in relation to total titratable acidity (TTA) and total soluble solids (TSS). However, these traits, which have implications to fruit quality, showed to be negatively correlated to fruit mass (-0.46 and -0.67). The results indicate that the population of Turiaçu pineapple is suitable for selection, especially for Fusarium wilt resistance. Also, Turiaçu clones can be used in breeding programs of pineapple.