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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
01/04/1993 |
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Data da última atualização: |
01/04/1993 |
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Autoria: |
WHITE, J. W.; POLYS, S. M. |
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Título: |
Photon flux and leaf temperature effects on flower initiation and early development of red elite geraniums. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Journal American Society Horticultural Science, v.112, n.6, p.945-950,1987. |
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Idioma: |
Inglês |
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Conteúdo: |
Geranium (Pelargonium x hortorum Bailery "Red Elite") seedlings were grown with five daily mean temperature (DMT) and daily light integral (DLI) treatment combinations: DMT of 23 graus C? day at DLI of 8.64 mol-1m-2 (TI0, DMT o f 25 graus at 8.64 mol (T20), DMT of 23 graus at DLI of 17.28 mol, (T3) DMT of 25 graus at DLI 17.28 mol (T4), and DMT of21 graus at 17.28 mol (C1). Using infrared thermometry to control, leaf temperature, DMT had a greater influence on flower initiation at thetransition stage and on flower bud development to macrobud stage than DLI. Seedlings in T4 reached transition stage 24 days after sowing with a cumulative irradiance of 415 mol. Transition occurred in T1 at 27 days from sowing . With a cumulative irradiance of only 23 mol. Some time after 27 days from sowing, transition occurred in T2, T3, and C1. With a DLI of 17.28 mol, a DMT reduction from 25 graus to 21 graus effected macrobuds in 42,56, or 62 days after sowing, respectively; whereas with a DLI of 8.64 mol, a decrease from 25 graus to 23 grauseffected macrobuds in 54 or 51 days. |
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Palavras-Chave: |
Flower induction; Fotosintetic radiation; Inducao de floracao; Leaf temperature; Radiacao fotossintetica; Temperatura foliar; Termometria; Thermometry. |
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Thesagro: |
Gerânio. |
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Categoria do assunto: |
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Marc: |
LEADER 01813naa a2200241 a 4500
001 1073298
005 1993-04-01
008 1987 bl --- 0-- u #d
100 1 $aWHITE, J. W.
245 $aPhoton flux and leaf temperature effects on flower initiation and early development of red elite geraniums.
260 $c1987
520 $aGeranium (Pelargonium x hortorum Bailery "Red Elite") seedlings were grown with five daily mean temperature (DMT) and daily light integral (DLI) treatment combinations: DMT of 23 graus C? day at DLI of 8.64 mol-1m-2 (TI0, DMT o f 25 graus at 8.64 mol (T20), DMT of 23 graus at DLI of 17.28 mol, (T3) DMT of 25 graus at DLI 17.28 mol (T4), and DMT of21 graus at 17.28 mol (C1). Using infrared thermometry to control, leaf temperature, DMT had a greater influence on flower initiation at thetransition stage and on flower bud development to macrobud stage than DLI. Seedlings in T4 reached transition stage 24 days after sowing with a cumulative irradiance of 415 mol. Transition occurred in T1 at 27 days from sowing . With a cumulative irradiance of only 23 mol. Some time after 27 days from sowing, transition occurred in T2, T3, and C1. With a DLI of 17.28 mol, a DMT reduction from 25 graus to 21 graus effected macrobuds in 42,56, or 62 days after sowing, respectively; whereas with a DLI of 8.64 mol, a decrease from 25 graus to 23 grauseffected macrobuds in 54 or 51 days.
650 $aGerânio
653 $aFlower induction
653 $aFotosintetic radiation
653 $aInducao de floracao
653 $aLeaf temperature
653 $aRadiacao fotossintetica
653 $aTemperatura foliar
653 $aTermometria
653 $aThermometry
700 1 $aPOLYS, S. M.
773 $tJournal American Society Horticultural Science$gv.112, n.6, p.945-950,1987.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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