Estimation of Genetic Parameters of Turiacu Pineapple Clones and Genetic Correlation between Traits  

作　　者：Guilherme Barbosa Abreu Marcos Miranda Toledo Marcelo Mattos Cavallari Jose Ribamar Gusmao Araujo Antonia Alice Costa Rodrigues Luiz Gustavo de Lima Melo Augusto Cesar Vieira Neves Junior 

机构地区：[1]Embrapa Cocais(CPACP),Sao Luis,Brazil [2]Embrapa Pecuária Sudeste(CPPSE),Sao Carlos,Brazil [3]Universidade Estadual do Maranhao(UEMA),Sao Luis,Brazil [4]Universidade Federal Rural de Pernambuco(UFRPE),Recife,Brazil

出　　处：《Agricultural Sciences》2017年第11期1253-1262,共10页农业科学（英文）

基　　金：FAPEMA for financial support

摘　　要：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.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.

关 键 词：Quantitative Genetics Plant Breeding Ananas comosus 

分 类 号：R73[医药卫生—肿瘤]