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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
29/03/2012 |
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Data da última atualização: |
29/03/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
-- - -- |
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Autoria: |
LAJÚS, C. R.; SCHEFFER-BASSO, S. M.; MIRANDA, M.; DERNARDIN, R. B. N.; VALLS, J. F. M. |
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Afiliação: |
Epagri |
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Título: |
Morphophysiological characterization of giant missionary grass accessions. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia , Viçosa, Minas Gerais, v. 40, n. 11, p. 2302-2307, 2011. |
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Idioma: |
Português |
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Notas: |
ISSN, 1806-9290 |
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Conteúdo: |
In this study, the phenotypic diversity of five accessions of giant missionary grass (Axonopus jesuiticus × A. scoparius) was evaluated by using morphophysiological traits. Accessions V 14337, V 14403, V 14404, V 14405 and V 14406 are hybrids derived from spontaneous crossing that occurred in Vale do Itajaí, Santa Catarina, Brazil. Plants were
cultivated in greenhouse and evaluated at 60, 90, 120, 150, 180, 210 and 240 days of growth. Variation was observed for dry matter production, phenology and morphological traits, showing the possibility of selection. Flowering started at 210 days of growth and only in accessions V 14337 and V 14404. The Mahalanobis distance among accessions ranged from 35.64 (V 14403 and V 14405) to 183.38 (V 14337 and V 14405), and three groups were formed, based on 17 vegetative morphophysiological traits evaluated in plants with 180 days of growth: G1 (V 14403, V 14405), G2 (V 14406) and G3
(V 14337, V 14404). Group I presented the greatest dry matter production of stolon and aboveground, which were the traits with the largest relative contribution to genetic divergence, 38.67% and 38.31%, respectively. Accessions V 14403 and V 14405 are the most promising for agronomic evaluations that address their records as forage cultivars.
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Palavras-Chave: |
A. catharinensis; Dry matter production; Growth analysis; Phenoloy. |
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Categoria do assunto: |
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Marc: |
LEADER 01817naa a2200181 a 4500
001 1084191
005 2012-03-29
008 2011 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aMorphophysiological characterization of giant missionary grass accessions.
260 $c2011
500 $aISSN, 1806-9290
520 $aIn this study, the phenotypic diversity of five accessions of giant missionary grass (Axonopus jesuiticus × A. scoparius) was evaluated by using morphophysiological traits. Accessions V 14337, V 14403, V 14404, V 14405 and V 14406 are hybrids derived from spontaneous crossing that occurred in Vale do Itajaí, Santa Catarina, Brazil. Plants were cultivated in greenhouse and evaluated at 60, 90, 120, 150, 180, 210 and 240 days of growth. Variation was observed for dry matter production, phenology and morphological traits, showing the possibility of selection. Flowering started at 210 days of growth and only in accessions V 14337 and V 14404. The Mahalanobis distance among accessions ranged from 35.64 (V 14403 and V 14405) to 183.38 (V 14337 and V 14405), and three groups were formed, based on 17 vegetative morphophysiological traits evaluated in plants with 180 days of growth: G1 (V 14403, V 14405), G2 (V 14406) and G3 (V 14337, V 14404). Group I presented the greatest dry matter production of stolon and aboveground, which were the traits with the largest relative contribution to genetic divergence, 38.67% and 38.31%, respectively. Accessions V 14403 and V 14405 are the most promising for agronomic evaluations that address their records as forage cultivars.
653 $aA. catharinensis
653 $aDry matter production
653 $aGrowth analysis
653 $aPhenoloy
773 $tRevista Brasileira de Zootecnia , Viçosa, Minas Gerais$gv. 40, n. 11, p. 2302-2307, 2011.
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