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 | Acesso ao texto completo restrito à biblioteca da Embrapa Trigo. Para informações adicionais entre em contato com cnpt.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
10/01/2010 |
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Data da última atualização: |
17/10/2019 |
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Autoria: |
HARLAN, J. R.; DE WET, J. M. J. |
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Afiliação: |
Jan M. J. De Wet. |
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Título: |
Toward a rational classification of cultivated plants. |
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Ano de publicação: |
1971 |
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Fonte/Imprenta: |
Taxon, v. 20, n. 4, p. 505-517, 1971. |
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DOI: |
10.2307/1218252 |
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Idioma: |
Inglês |
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Conteúdo: |
The methods of formal taxonomy have not been very satisfactory for the classification of cultivated plants. As a result, the people who deal with cultivated plants the most have developed their own informal and intuitive classifications based on experience as to what constitutes useful groupings. An attempt is made to provide a framework in which both systems can operate with a minimum of confusion. The structure of the total available gene pool is characterized by assigning taxa to primary, secondary and tertiary gene pools. At the infraspecific level, cultivars are grouped into races and subraces in an informal way without rigid rules for the use of terms. |
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Palavras-Chave: |
Classificação. |
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Thesagro: |
Botânica. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01109naa a2200169 a 4500
001 1828604
005 2019-10-17
008 1971 bl --- 0-- u #d
024 7 $a10.2307/1218252$2DOI
100 1 $aHARLAN, J. R.
245 $aToward a rational classification of cultivated plants.
260 $c1971
520 $aThe methods of formal taxonomy have not been very satisfactory for the classification of cultivated plants. As a result, the people who deal with cultivated plants the most have developed their own informal and intuitive classifications based on experience as to what constitutes useful groupings. An attempt is made to provide a framework in which both systems can operate with a minimum of confusion. The structure of the total available gene pool is characterized by assigning taxa to primary, secondary and tertiary gene pools. At the infraspecific level, cultivars are grouped into races and subraces in an informal way without rigid rules for the use of terms.
650 $aBotânica
653 $aClassificação
700 1 $aDE WET, J. M. J.
773 $tTaxon$gv. 20, n. 4, p. 505-517, 1971.
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Registro original: |
Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
13/08/2020 |
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Data da última atualização: |
18/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
AMBROSIO, A. S.; PORTUGAL, J. A. N.; SOUZA, K. R. D.; SILVA, L. C.; DIAS, D. F.; MANTOVANI, J. R.; MAGALHAES, P. C.; SOUZA, T. B.; SOUZA, T. C. |
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Afiliação: |
Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Universidade Federal de Alfenas; Unifenas; PAULO CESAR MAGALHAES, CNPMS; Universidade Federal de Ouro Preto; Universidade Federal de Alfenas. |
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Título: |
A mixture of trehalose derivatives mitigates the adverse effects of water deficits in maize: an analysis of photosynthetic efficiency. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Photosynthetica, v. 58, n. 3, p. 808-818, 2020. |
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DOI: |
10.32615/ps.2020.031 |
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Idioma: |
Inglês |
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Conteúdo: |
This study tested a tosylated and azide trehalose derivative mixture for its ability to mitigate water deficit-induced stress in maize via photosynthetic efficiency analyses. The experiment was conducted in greenhouse pots, using a maize hybrid that is sensitive to drought. The mixture of derivatives (28 mM) was applied with a hand sprayer. Plants containing five/six fully expanded leaves were subjected to water deficit stress for 12 d, followed by rehydration. The derivative mixture increased the photosynthetic rate, electron transport rate, and photochemical quenching, and mitigated damage to photosystem II. Moreover, it led to anatomical modifications in the leaf that increased the photosynthetic rate. These results suggest that the trehalose derivative mixture mitigates stress-induced damage in the maize hybrid and may represent a new stimulant for water-deficit tolerance. |
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Palavras-Chave: |
Anatomia foliar; Densidade estomática; Troca gasosa. |
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Thesagro: |
Clorofila; Milho. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/215326/1/Mixture-trehalose.pdf
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Marc: |
LEADER 01756naa a2200289 a 4500
001 2124330
005 2020-08-18
008 2020 bl uuuu u00u1 u #d
024 7 $a10.32615/ps.2020.031$2DOI
100 1 $aAMBROSIO, A. S.
245 $aA mixture of trehalose derivatives mitigates the adverse effects of water deficits in maize$ban analysis of photosynthetic efficiency.$h[electronic resource]
260 $c2020
520 $aThis study tested a tosylated and azide trehalose derivative mixture for its ability to mitigate water deficit-induced stress in maize via photosynthetic efficiency analyses. The experiment was conducted in greenhouse pots, using a maize hybrid that is sensitive to drought. The mixture of derivatives (28 mM) was applied with a hand sprayer. Plants containing five/six fully expanded leaves were subjected to water deficit stress for 12 d, followed by rehydration. The derivative mixture increased the photosynthetic rate, electron transport rate, and photochemical quenching, and mitigated damage to photosystem II. Moreover, it led to anatomical modifications in the leaf that increased the photosynthetic rate. These results suggest that the trehalose derivative mixture mitigates stress-induced damage in the maize hybrid and may represent a new stimulant for water-deficit tolerance.
650 $aClorofila
650 $aMilho
653 $aAnatomia foliar
653 $aDensidade estomática
653 $aTroca gasosa
700 1 $aPORTUGAL, J. A. N.
700 1 $aSOUZA, K. R. D.
700 1 $aSILVA, L. C.
700 1 $aDIAS, D. F.
700 1 $aMANTOVANI, J. R.
700 1 $aMAGALHAES, P. C.
700 1 $aSOUZA, T. B.
700 1 $aSOUZA, T. C.
773 $tPhotosynthetica$gv. 58, n. 3, p. 808-818, 2020.
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