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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
24/05/1996 |
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Data da última atualização: |
24/05/1996 |
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Autoria: |
MENHENETT, R.; WAREING, P. F. |
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Afiliação: |
University College of Wales. |
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Título: |
Possible involvement of growth substances in the response of tomato plants (Lycopersicon esculentum Mill) to different soil temperatures. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
Journal of Horticultural Science, v.50, p.381-397, 1975. |
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Idioma: |
Inglês |
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Conteúdo: |
Tomato plants (cv Suttons alicante) were subjected of two soil temperatures of about 7 graus and 22oC with a common air temperature of 22-24oC. "Low" soil temperature markedly reduced root and shoot growth and the quantity of xylem exudate compared with "high" soil temperature. Applicatio of low doses of gibberelic acid (GA3) to the apex of intactplants increased stem length and leaf area. Benzylaminopurine (BAP) did not measurably affect these parameters. In contrast, leaf fises excised from plants grown at "low" soil temperature did increase in area when floated on solutions of either GA3 or BAP. Leaf discs from plants at "high" soil temperature responded only to GA. Data are presented toshow that "low"root temperature leads to alterations in the hormonecontent of the sap from tomato which may contribute to the observed reduction of shoot growth. |
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Palavras-Chave: |
Growth; Tomato. |
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Thesagro: |
Crescimento; Lycopersicon Esculentum; Solo; Temperatura; Tomate. |
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Thesaurus Nal: |
soil; temperature. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01544naa a2200241 a 4500
001 1077205
005 1996-05-24
008 1975 bl --- 0-- u #d
100 1 $aMENHENETT, R.
245 $aPossible involvement of growth substances in the response of tomato plants (Lycopersicon esculentum Mill) to different soil temperatures.
260 $c1975
520 $aTomato plants (cv Suttons alicante) were subjected of two soil temperatures of about 7 graus and 22oC with a common air temperature of 22-24oC. "Low" soil temperature markedly reduced root and shoot growth and the quantity of xylem exudate compared with "high" soil temperature. Applicatio of low doses of gibberelic acid (GA3) to the apex of intactplants increased stem length and leaf area. Benzylaminopurine (BAP) did not measurably affect these parameters. In contrast, leaf fises excised from plants grown at "low" soil temperature did increase in area when floated on solutions of either GA3 or BAP. Leaf discs from plants at "high" soil temperature responded only to GA. Data are presented toshow that "low"root temperature leads to alterations in the hormonecontent of the sap from tomato which may contribute to the observed reduction of shoot growth.
650 $asoil
650 $atemperature
650 $aCrescimento
650 $aLycopersicon Esculentum
650 $aSolo
650 $aTemperatura
650 $aTomate
653 $aGrowth
653 $aTomato
700 1 $aWAREING, P. F.
773 $tJournal of Horticultural Science$gv.50, p.381-397, 1975.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
