Seleção genética em progênies híbridas de coqueiro

Neto, J. T. Farias; Lins, P. M. P.; Resende, Marcos Deon Vilela de; Müller, Artur Gustavo

doi:10.1590/s0100-29452009000100026

Cited by 20 publications

(8 citation statements)

References 11 publications

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“…Entre as principais vantagens do método de modelos mistos, está a sua aplicação a dados desbalanceados, a correção de dados para os efeitos ambientais, a predição precisa e não viciada dos valores genotípicos, a maximização do ganho genético com seleção (RESENDE et al, 2001) e a maximização da acurácia seletiva (FARIAS NETO et al, 2009).…”

Section: Ciência Florestalunclassified

Seleção genética em progênies de Eucalyptus camaldulensis em área de cerrado matogrossense

et al. 2015

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Section: Ciência Florestalunclassified

Seleção genética em progênies de Eucalyptus camaldulensis em área de cerrado matogrossense

et al. 2015

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“…Currently, BLUP is most widely used in the latter. The REML/BLUP methodology has been frequently applied in fruit breeding aimed at selection of progeny and/or individuals in pequi trees (Giordani, Fernandes, Titon, & Santana, 2012), peach trees (Bruna , Moreto, & Dalbo, 2012), açaí trees (Farias Neto, Resende, & Oliveira, 2011) and coconut trees (Farias Neto, Lins, Resende, & Muller, 2009).…”

Section: Introductionmentioning

confidence: 99%

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

et al. 2017

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ABSTRACT. Breeding programmes must be improved to accelerate the development of new cultivars due to the commercial importance of passion fruit. This study compared four selection indexes and the REML/BLUP methodology in an assessment of predicted genetic gains in the traits of interest. A total of 81 full-sib progenies derived from the third cycle of recurrent selection were assessed for one harvest in one environment. The experiment was arranged in a randomized complete block design with five plants per plot. The following traits were assessed: number of fruits, total yield, fruit mass, fruit longitudinal diameter, fruit transverse diameter, fruit pulp percentage, shell thickness and content of soluble solids. The Mulamba & Mock index produced the best results for the selection of progenies. The REML/BLUP method was the most efficient and selected progenies with predicted genetic gains better than the selection indexes tested.Keywords: mixed models, Passiflora edulis Sims, predicted genotypic values, simultaneous selection.Predição de ganhos genéticos por índices de seleção e metodologia REML/BLUP em uma população de maracujá-azedo sob seleção recorrente RESUMO. Tendo em vista a importância do cultivo do maracujazeiro, é de grande relevância o aprimoramento dos trabalhos de melhoramento genético a fim de possibilitar com maior rapidez o desenvolvimento de novas cultivares. O objetivo do presente trabalho foi comparar quatro índices de seleção e o método REML/BLUP na avaliação de ganhos genéticos preditos das características de interesse. Foram avaliadas 81 progênies de irmãos-completos, oriundas do terceiro ciclo de seleção recorrente, em uma safra, em um ambiente. O delineamento experimental utilizado foi o de blocos ao acaso com parcelas constituídas por cinco plantas. As características avaliadas foram: número de frutos, produção total, massa do fruto, diâmetro longitudinal do fruto, diâmetro transversal do fruto, porcentagem de polpa do fruto, espessura da casca e teor de sólidos solúveis totais. O índice de seleção de Mulamba & Mock proporcionou os melhores resultados para a seleção das progênies. O método REML/BLUP mostrou-se mais eficiente, tendo selecionado progênies com ganhos genéticos preditos melhores que os dos índices de seleção testados.Palavras-chave: modelos mistos, Passiflora edulis Sims, valores genotípicos preditos, seleção simultânea.

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“…Several authors verified the scarcity of biometric studies in native species, which could give support in programs for recovery of degraded area and genetic improvement due to the great variability in seed size, coloration of seed tegument and others [10]- [12]- [19]- [13]- [28]. Thus, the results of biometric studies of fruits and seeds represent important subsides to the establishment of techniques of eatable fruits [26].…”

Section: Discussionmentioning

confidence: 99%

Biometrics seeds, emergence and vigor of camu-camu seedlings depending on the seed coat coloring

Smiderle

Chagas

Souza

et al. 2015

JAA

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In the Brazilian Amazon is significant diversity of fruit species, the agronomic characteristics of which are still little studied. The objective of this study was to evaluate the influence of tegument coloration on germination and vigor of camu-camu seeds. The seeds were obtained from ripe and healthy fruits coming from population of the Urubu River in Roraima and were classified visually according to the tegument coloration of green, red and brown color. 200 seeds for each class of colors were utilized, evaluating the following biometric characters: length, breadth, thickness and individual mass, obtained with the aid of a digital caliper and precision balance. The experimental design utilized was the completely randomized with three treatments and 10 replications of 20 seeds. The highest means of mass and volume were obtained from brown and red seeds. The brown seeds produce higher content of root dry mass than both the green and red seeds. The physiological quality of camu-camu seeds of the Urubu River is associated with tegument coloration. Seeds with brown tegument have better development, greater growth of seedlings with greater accumulation of dry matter both in the roots and shoots.

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Seleção genética em progênies híbridas de coqueiro

Cited by 20 publications

References 11 publications

Seleção genética em progênies de Eucalyptus camaldulensis em área de cerrado matogrossense

Seleção genética em progênies de Eucalyptus camaldulensis em área de cerrado matogrossense

<b>Prediction of genetic gains by selection indexes and REML/BLUP methodology in a population of sour passion fruit under recurrent selection

Biometrics seeds, emergence and vigor of camu-camu seedlings depending on the seed coat coloring

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