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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
14/12/1998 |
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Data da última atualização: |
14/12/1998 |
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Autoria: |
ANDRADE, R. P. de; THOMAS, D.; FERGUSON, J. E. |
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Título: |
Seed production of pasture species in a tropical savanna region of Brazil. II. Grasses. |
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Ano de publicação: |
1983 |
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Fonte/Imprenta: |
Tropical Grasslands, Brisbane, v.17, n.2, p.59-64, 1983. |
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Idioma: |
Inglês |
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Conteúdo: |
The seed yields and limitations to seed production for four tropical grasses cultivars were defined replicated field experiment conducted over years the Cerrados Agricultural Research Centre near Brasilia (15o36'S; longitude 47o42'W) in a tropical savanna region. The four grasses were Brachiaria humidicola, B. decumbens cv. Brasilisk, Panicum maximam var. trichoglume cv. Planaltina. The lighest pure seed yields obtained range from 330 kg ha for A. gayanus cv.Planaltina, to 501 kg for B. humidicola. Observation on flowering behaviour suggestd that Brachiaria species and P. maximum cv. Petrie were day-neutral in their photoperiodic responses. A. gayanus cv. Planaltina had a short-day flowering response. Yields were not limited by diseases or weeds. Under the relatively high soil fertility conditions, undefoliated stands of A. gayanus cv. Planaltina lodged badly in the second season and seed yield was reduced by 65 per cent. In the following year, however, cutting in January prevented lodging significantly increased seed yield. Results indicated that the region is potentially suitable for seed production of all the grasses studied. |
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Palavras-Chave: |
Brasil; Seed production. |
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Thesagro: |
Andropogon Gayanus; Brachiaria Decumbens; Brachiaria Humidicola; Cerrado; Gramínea; Panicum Maximum; Produção; Semente. |
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Thesaurus Nal: |
Brazil; grasses. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01921naa a2200289 a 4500
001 1544236
005 1998-12-14
008 1983 bl --- 0-- u #d
100 1 $aANDRADE, R. P. de
245 $aSeed production of pasture species in a tropical savanna region of Brazil. II. Grasses.
260 $c1983
520 $aThe seed yields and limitations to seed production for four tropical grasses cultivars were defined replicated field experiment conducted over years the Cerrados Agricultural Research Centre near Brasilia (15o36'S; longitude 47o42'W) in a tropical savanna region. The four grasses were Brachiaria humidicola, B. decumbens cv. Brasilisk, Panicum maximam var. trichoglume cv. Planaltina. The lighest pure seed yields obtained range from 330 kg ha for A. gayanus cv.Planaltina, to 501 kg for B. humidicola. Observation on flowering behaviour suggestd that Brachiaria species and P. maximum cv. Petrie were day-neutral in their photoperiodic responses. A. gayanus cv. Planaltina had a short-day flowering response. Yields were not limited by diseases or weeds. Under the relatively high soil fertility conditions, undefoliated stands of A. gayanus cv. Planaltina lodged badly in the second season and seed yield was reduced by 65 per cent. In the following year, however, cutting in January prevented lodging significantly increased seed yield. Results indicated that the region is potentially suitable for seed production of all the grasses studied.
650 $aBrazil
650 $agrasses
650 $aAndropogon Gayanus
650 $aBrachiaria Decumbens
650 $aBrachiaria Humidicola
650 $aCerrado
650 $aGramínea
650 $aPanicum Maximum
650 $aProdução
650 $aSemente
653 $aBrasil
653 $aSeed production
700 1 $aTHOMAS, D.
700 1 $aFERGUSON, J. E.
773 $tTropical Grasslands, Brisbane$gv.17, n.2, p.59-64, 1983.
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Registro original: |
Embrapa Cerrados (CPAC) |
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