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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Milho e Sorgo; Embrapa Semiárido. |
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Data corrente: |
26/02/1997 |
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Data da última atualização: |
24/09/2003 |
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Autoria: |
TIMOTHY, D. H.; HATHEWAY, W. H.; GRANT, U. J.; TORRE GROZA C. M.; SARRIA V. D.; VARELA. D. |
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Título: |
Races of maize in Ecuador. |
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Ano de publicação: |
1963 |
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Fonte/Imprenta: |
Washington, D.C.: National Academy of Science, 1963. |
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Páginas: |
147p. |
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Descrição Física: |
il. |
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Série: |
(National Academy of Science. Publication, 975). |
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Idioma: |
Inglês |
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Conteúdo: |
1. In this report we recognize 29 races of maize, of which six are "poorly defined". This classification is based on 675 collections, which were studied with respect to ear characteristics and geographical distribution. A provisional arrangement made on this basis was revised by study of plant, tassel, and other characteristics. 2. General descriptions, tabular data on ears, tassels and other characters, internode diagrams, ear cross-sectional diagrams, and ear photographs and distribution maps ar presented for each race. 3. The great diversity of Ecuadorian maize is related to the complex geography and history of that country. Races have been introduced from the north and south; hybridization between races has occurred; and geographical isolation haspermitted the development of new forms in cental highland Ecuador. 4. Positions of chromosome knobs were determined for 14 of the 29 races described. The Andean knob pattern, first discovered in the races of highland Bolivia, is extended at least to northern Ecuador. Knob patterns are more variable in lowland races, and total knob number is generally higher. |
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Palavras-Chave: |
Característica agronomica; Caracteristicas; Characters; Classificacao; Descricao; Description; Equador; Maize; Pessoas indigenas; Racas. |
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Thesagro: |
Clima; Distribuição Geográfica; Geografia; Milho. |
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Thesaurus Nal: |
classification; climate; corn; geography; indigenous peoples; races. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02213nam a2200433 a 4500
001 1404281
005 2003-09-24
008 1963 bl uuuu 00u1 u #d
100 1 $aTIMOTHY, D. H.
245 $aRaces of maize in Ecuador.
260 $aWashington, D.C.: National Academy of Science$c1963
300 $a147p.$cil.
490 $a(National Academy of Science. Publication, 975).
520 $a1. In this report we recognize 29 races of maize, of which six are "poorly defined". This classification is based on 675 collections, which were studied with respect to ear characteristics and geographical distribution. A provisional arrangement made on this basis was revised by study of plant, tassel, and other characteristics. 2. General descriptions, tabular data on ears, tassels and other characters, internode diagrams, ear cross-sectional diagrams, and ear photographs and distribution maps ar presented for each race. 3. The great diversity of Ecuadorian maize is related to the complex geography and history of that country. Races have been introduced from the north and south; hybridization between races has occurred; and geographical isolation haspermitted the development of new forms in cental highland Ecuador. 4. Positions of chromosome knobs were determined for 14 of the 29 races described. The Andean knob pattern, first discovered in the races of highland Bolivia, is extended at least to northern Ecuador. Knob patterns are more variable in lowland races, and total knob number is generally higher.
650 $aclassification
650 $aclimate
650 $acorn
650 $ageography
650 $aindigenous peoples
650 $araces
650 $aClima
650 $aDistribuição Geográfica
650 $aGeografia
650 $aMilho
653 $aCaracterística agronomica
653 $aCaracteristicas
653 $aCharacters
653 $aClassificacao
653 $aDescricao
653 $aDescription
653 $aEquador
653 $aMaize
653 $aPessoas indigenas
653 $aRacas
700 1 $aHATHEWAY, W. H.
700 1 $aGRANT, U. J.
700 1 $aTORRE GROZA C. M.
700 1 $aSARRIA V. D.
700 1 $aVARELA. D.
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Embrapa Amazônia Oriental (CPATU) |
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