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Genetic evaluation and deviance analysis in an unbalanced provenance and progeny test of maté Avaliação genética e análise de deviance em um teste desbalanceado de procedência e progênie de Ilex paraguariensis

By José Alfredo Sturion and Marcos Deon Vilela de Resende

Abstract

&lt;p&gt;Likelihood ratio tests (LRT) were applied in an unbalanced provenance/progeny test of mate (Ilex paraguariensis A. St. Hil.). The trial was established in a randomized complete block design with seven provenances, 140 half sib families, ten blocks and six plants per linear plot. The spacing was 3 m x 2 m. The following conclusions were obtained from the deviance analysis (Anadev): all random effects and associated variance components and coefficients of determination (heritability and coefficients of determination of plots and provenances) were significant; there is enough genetic variability in both within and between provenance levels which can be adequately explored for breeding purposes.&lt;/p&gt;&lt;p&gt;doi: 10.4336/2010.pfb.30.62.157&lt;/p&gt;<br>&lt;!--[if gte mso 9]&gt;&lt;xml&gt; &lt;w:WordDocument&gt; &lt;w:View&gt;Normal&lt;/w:View&gt; &lt;w:Zoom&gt;0&lt;/w:Zoom&gt; &lt;w:HyphenationZone&gt;21&lt;/w:HyphenationZone&gt; &lt;w:PunctuationKerning /&gt; &lt;w:ValidateAgainstSchemas /&gt; &lt;w:SaveIfXMLInvalid&gt;false&lt;/w:SaveIfXMLInvalid&gt; &lt;w:IgnoreMixedContent&gt;false&lt;/w:IgnoreMixedContent&gt; &lt;w:AlwaysShowPlaceholderText&gt;false&lt;/w:AlwaysShowPlaceholderText&gt; &lt;w:Compatibility&gt; &lt;w:BreakWrappedTables /&gt; &lt;w:SnapToGridInCell /&gt; &lt;w:WrapTextWithPunct /&gt; &lt;w:UseAsianBreakRules /&gt; &lt;w:DontGrowAutofit /&gt; &lt;/w:Compatibility&gt; &lt;w:BrowserLevel&gt;MicrosoftInternetExplorer4&lt;/w:BrowserLevel&gt; &lt;/w:WordDocument&gt; &lt;/xml&gt;&lt;![endif]--&gt;&lt;!--[if gte mso 9]&gt;&lt;xml&gt; &lt;w:LatentStyles DefLockedState="false" LatentStyleCount="156"&gt; &lt;/w:LatentStyles&gt; &lt;/xml&gt;&lt;![endif]--&gt;&lt;!--[if !mso]&gt;&lt;object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui&gt;&lt;/object&gt; &lt;mce:style&gt;&lt;! st1:*{behavior:url(#ieooui) } --&gt; &lt;!--[endif]--&gt; &lt;!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} p.MsoBodyText, li.MsoBodyText, div.MsoBodyText {margin:0cm; margin-bottom:.0001pt; text-align:center; mso-pagination:widow-orphan; font-size:10.0pt; mso-bidi-font-size:12.0pt; font-family:Arial; mso-fareast-font-family:"Times New Roman"; font-weight:bold;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --&gt; &lt;!--[if gte mso 10]&gt; &lt;mce:style&gt;&lt;! /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabela normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} --&gt; &lt;!--[endif]--&gt; &lt;p class="MsoBodyText" style="text-align: justify;"&gt;Em um teste combinado de procedência e progênie de erva-mate (Ilex paraguariensis A. St. Hil.), os efeitos aleatórios do modelo foram testados pelo teste da razão de verossimilhança (LTR). Os dados referem-se&lt;br /&gt;ao peso de biomassa foliar obtido aos seis anos de idade, por ocasião da terceira poda, em um teste com&lt;br /&gt;sete procedências e 140 progênies de meios-irmãos instalado no delineamento de blocos ao acaso, com dez repetições de parcelas lineares com seis plantas no espaçamento de 3 m x 2 m. A análise de deviance (Anadev) foi realizada e as seguintes conclusões foram obtidas: os componentes de variância associados a todos os efeitos aleatórios do modelo e respectivos coeficientes de determinação (herdabilidades dos efeitos genéticos aditivos, dos efeitos de parcela e dos efeitos de procedência) foram significativamente diferentes de zero, indicando que existe variabilidade genética significativa a ser explorada pelo melhoramento, tanto entre como dentro de populações naturais.&lt;/p&gt;&lt;p class="MsoBodyText" style="text-align: justify;"&gt;doi: 10.4336/2010.pfb.30.62.157&lt;/p&gt

Topics: Anadev, Ilex paraguariensis, teste de progênie., Forestry, SD1-669.5, Agriculture, S, DOAJ:Forestry, DOAJ:Agriculture and Food Sciences
Publisher: Embrapa Florestas
Year: 2010
DOI identifier: 10.4336/2010.pfb.30.62.157
OAI identifier: oai:doaj.org/article:1cd51f70a8794faaa94a221ae50d1f81
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