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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
12/08/1992 |
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Data da última atualização: |
12/08/1992 |
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Autoria: |
YELENOSKY, G.; VU, J. C. V.; HEARN, C. J. |
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Afiliação: |
U.S. Dept. of Agriculture, 2120 Camden Road, Orlando, FL 32803. |
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Título: |
Cold Hardiness Comparison of young trees of "Ambersweet" with "Valencia" orange during controlled freezes. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Proc. Fla. State Hort. Soc., v.104, p.185-187, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
Two-year-old "Ambersweet" (Citrus reticulata Blanco X [C. paradisiMacf. X C. reticulata]) X midseason orange, C. sinensis (L.) Osb. trees on three rootstocks, sour orange (C. aurantium L.), Cleopatra mandarin (C. reticulata) and Carrizo citrange (C. sinensis X Poncirus trifoliata(L.) Raf.) growing in 15-liter pots were exposed to cold-hardening regimes in controlled-temperature rooms and freeze-tested at 6.7 graus C. and colder for three hours. The ability of "Ambersweet" to cold harden did not exceed that of control variety trees, Valencia orange (C. sinensis (L.) Osb.) based on degree of freeze injury, freezing behavior, and biochemical changes in the tissues. Differences in the above factors were significant only between hardend and unhardened trees of bothvarieties. Results suggest "Ambersweet" is a moderately cold-hardy type similar to "Valencia" orange. |
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Palavras-Chave: |
aclimacao; hidrido; tolerancia ao frio. |
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Thesagro: |
Citrus Sinensis; Nucleação. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01456naa a2200205 a 4500
001 1633629
005 1992-08-12
008 1991 bl uuuu u00u1 u #d
100 1 $aYELENOSKY, G.
245 $aCold Hardiness Comparison of young trees of "Ambersweet" with "Valencia" orange during controlled freezes.
260 $c1991
520 $aTwo-year-old "Ambersweet" (Citrus reticulata Blanco X [C. paradisiMacf. X C. reticulata]) X midseason orange, C. sinensis (L.) Osb. trees on three rootstocks, sour orange (C. aurantium L.), Cleopatra mandarin (C. reticulata) and Carrizo citrange (C. sinensis X Poncirus trifoliata(L.) Raf.) growing in 15-liter pots were exposed to cold-hardening regimes in controlled-temperature rooms and freeze-tested at 6.7 graus C. and colder for three hours. The ability of "Ambersweet" to cold harden did not exceed that of control variety trees, Valencia orange (C. sinensis (L.) Osb.) based on degree of freeze injury, freezing behavior, and biochemical changes in the tissues. Differences in the above factors were significant only between hardend and unhardened trees of bothvarieties. Results suggest "Ambersweet" is a moderately cold-hardy type similar to "Valencia" orange.
650 $aCitrus Sinensis
650 $aNucleação
653 $aaclimacao
653 $ahidrido
653 $atolerancia ao frio
700 1 $aVU, J. C. V.
700 1 $aHEARN, C. J.
773 $tProc. Fla. State Hort. Soc.$gv.104, p.185-187, 1991.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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