Artigo

Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil

The study aimed to estimate parameters and breeding values for the traits number of bunches (NC), average weight of bunch (PMC) and total weight of the bunch (PTC) in palm-trees on six years, by the method of mixed models (REML/BLUP). The progeny test was established under a randomized block design...

ver descrição completa

Autor principal: Farias-Neto, João Tomé de
Outros Autores: Clement, Charles Roland, Resende, Marcos Deon Vilela de
Grau: Artigo
Idioma: pt_BR
Publicado em: Bragantia 2020
Assuntos:
Fruit
Fruit Production
Heritability
Pollination
Weight
Brasil
Para [brazil]
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/16068
id oai:repositorio:1-16068
recordtype dspace
spelling oai:repositorio:1-16068 Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil Estimativas de parâmetros genéticos e ganho de seleção para produção de frutos em progênies de polinização aberta de pupunheira no Estado do Pará, Brasil Farias-Neto, João Tomé de Clement, Charles Roland Resende, Marcos Deon Vilela de Fruit Fruit Production Heritability Pollination Weight Brasil Para [brazil] The study aimed to estimate parameters and breeding values for the traits number of bunches (NC), average weight of bunch (PMC) and total weight of the bunch (PTC) in palm-trees on six years, by the method of mixed models (REML/BLUP). The progeny test was established under a randomized block design with 50 treatments (progeny), 10 blocks and one plant per plot, spaced 5 × 5 m, and an outer boundary to the experiment. Magnitudes of heritability estimates at the individual level and averages in the narrow sense for PTC (0.21 and 0.36) and NC (0.286 and 0.435) were good. The coefficient of genetic variation at the level of individual exhibited moderate values for PTC (19.86) and NC (17.59). The square root of heritability for the average of the progeny results in selective accuracy in the order of 0.60 to 0.66 for PTC and NC, confirming good accuracy and confidence in genetic parameters estimated by promoting security in the selection. The potential fo the population for improvement can be observed by means of genetic gains for PTC that ranged from 8.3 to 19.9 kg, increasing the mean of the new population for the character, after one cycle of selection to 40.4 kg, equivalent to 25.8%. 2020-05-22T21:12:16Z 2020-05-22T21:12:16Z 2013 Artigo https://repositorio.inpa.gov.br/handle/1/16068 10.1590/S0006-87052013000200002 pt_BR Volume 72, Número 2, Pags. 122-126 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Bragantia
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language pt_BR
topic Fruit
Fruit Production
Heritability
Pollination
Weight
Brasil
Para [brazil]
spellingShingle Fruit
Fruit Production
Heritability
Pollination
Weight
Brasil
Para [brazil]
Farias-Neto, João Tomé de
Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
topic_facet Fruit
Fruit Production
Heritability
Pollination
Weight
Brasil
Para [brazil]
description The study aimed to estimate parameters and breeding values for the traits number of bunches (NC), average weight of bunch (PMC) and total weight of the bunch (PTC) in palm-trees on six years, by the method of mixed models (REML/BLUP). The progeny test was established under a randomized block design with 50 treatments (progeny), 10 blocks and one plant per plot, spaced 5 × 5 m, and an outer boundary to the experiment. Magnitudes of heritability estimates at the individual level and averages in the narrow sense for PTC (0.21 and 0.36) and NC (0.286 and 0.435) were good. The coefficient of genetic variation at the level of individual exhibited moderate values for PTC (19.86) and NC (17.59). The square root of heritability for the average of the progeny results in selective accuracy in the order of 0.60 to 0.66 for PTC and NC, confirming good accuracy and confidence in genetic parameters estimated by promoting security in the selection. The potential fo the population for improvement can be observed by means of genetic gains for PTC that ranged from 8.3 to 19.9 kg, increasing the mean of the new population for the character, after one cycle of selection to 40.4 kg, equivalent to 25.8%.
format Artigo
author Farias-Neto, João Tomé de
author2 Clement, Charles Roland
Resende, Marcos Deon Vilela de
author2Str Clement, Charles Roland
Resende, Marcos Deon Vilela de
title Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
title_short Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
title_full Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
title_fullStr Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
title_full_unstemmed Estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the State of Pará, Brazil
title_sort estimates of genetic parameters and selection gain for fruit production in open-pollinated progenies of peach palm in the state of pará, brazil
publisher Bragantia
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/16068
_version_ 1787142094819688448
score 11.755432

Registros relacionados