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EVALUATION OF GRAIN SORGHUM CULTIVARS FOR DOUBLE CROPPING IN THE SOUTHWEST OF GOIÁS STATE, BRAZIL AVALIAÇÃO DE CULTIVARES DE SORGO GRANÍFERO NA SAFRINHA NO SUDOESTE DO ESTADO DE GOIÁS

By Eduardo Bezerra de Morães, Rodrigo Pires, Luis Henrique Silva Carregal Pereira da Silva, Alexandre Stremel Barros and Alessandro Guerra da Silva

Abstract

&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="justify"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: x-small;"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-size: small;"&gt;&lt;span style="font-size: small;"&gt;&lt;span lang="en-US"&gt;Sorghum is a crop of great importance for double cropping, in the Brazilian Central-West region. Within this region, in the Southwestern Goiás State, a research was conducted to select sorghum (&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="font-size: small;"&gt;&lt;span lang="en-US"&gt;&lt;em&gt;Sorghum bicolor&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-size: small;"&gt;&lt;span style="font-size: small;"&gt;&lt;span lang="en-US"&gt; (L.) &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-size: small;"&gt;&lt;span style="font-size: small;"&gt;Moench) cultivars, in the municipalities of Montividiu, Rio Verde, and Santa Helena de Goiás. &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-size: small;"&gt;&lt;span style="font-size: small;"&gt;&lt;span lang="en-US"&gt;A randomized blocks design, with four replications, was used. The grain sorghum cultivars tested were: BR 304, 741, 822, Catuy, and the experimental hybrid V 00069. The cultivars were sown on March 5, 2005. The evaluated characteristics were: yield, weight of thousand grains, plant height, and flowering and maturation dates. The results showed the interaction genotype x environment for all evaluated characteristics. The region of Montividiu presented better potential for sorghum grain production. Early flowering and harvest allowed higher grain yields.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="text-indent: 1cm; margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="justify"&gt; &lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="en-US" align="justify"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;KEY-WORDS: &lt;em&gt;Sorghum bicolor&lt;/em&gt;; grain yield; interaction genotype x environment.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;<br>&lt;!-- @page { margin: 2cm } P { margin-bottom: 0.21cm } --&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="justify"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;O sorgo é uma cultura de grande importância nos cultivos de safrinha na região Centro-Oeste. Com o objetivo de selecionar cultivares de melhor desempenho agronômico, para a safrinha na região sudoeste de Goiás, foram instalados ensaios nos municípios de Montividiu, Rio Verde e Santa Helena de Goiás. Foi empregado o delineamento experimental de blocos casualizados, com quatro repetições, utilizando-se as cultivares de sorgo BR 304, Catuy, 741, 822 e o híbrido experimental V 00069. A semeadura foi realizada no dia 05 de março de 2005. As características avaliadas foram: rendimento de grãos e peso de mil grãos, altura de plantas e datas de florescimento e maturidade fisiológica. Foi constatada a presença da interação genótipo x ambiente, em todas as características avaliadas. O município de Montividiu apresentou maior potencial para o cultivo de sorgo. A maior precocidade para floração e colheita possibilitou a obtenção de maior rendimento de grãos. &lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt; &lt;p style="text-indent: 1cm; margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="justify"&gt; &lt;/p&gt; &lt;p style="margin-bottom: 0cm; font-style: normal; line-height: 120%; text-decoration: none;" lang="pt-BR" align="justify"&gt;&lt;span style="color: #000000;"&gt;&lt;span style="font-family: Times New Roman,serif;"&gt;&lt;span style="font-size: small;"&gt;PALAVRAS-CHAVE: &lt;em&gt;Sorghum bicolor&lt;/em&gt;; rendimento de grãos; interação genótipo x ambiente.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt

Topics: Sorghum bicolor, rendimento de grãos, interação genótipo x ambiente, Agriculture (General), S1-972, Agriculture, S, DOAJ:Agriculture (General), DOAJ:Agriculture and Food Sciences
Publisher: Universidade Federal de Goiás
Year: 2009
DOI identifier: 10.5216/pat.v39i2.3320
OAI identifier: oai:doaj.org/article:0cae899077d248ca910f20e868ce20bb
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