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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
02/07/1999 |
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Data da última atualização: |
21/05/2024 |
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Autoria: |
GREER, D. H.; STANLEY, C. J.; WARRINGTON, I. J. |
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Título: |
Photoperiod control of the initial phase of frost hardiness development in Pinus radiata. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Plant, Cell and Environment, Oxford, v. 12, n. 6, p. 661-668, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
Frost hardiness was measured in outdoor-grown seedlings, and in seedlings in controlled environments exposed to photoperiods shortening by 1, 3 or 5 min/d from 13 h to 9.5 h or constant at one of five periods from 9 to 12 h. Frost hardiness developed at a constant rate in response to shortening photoperiod once it had declined to about 12 h. Hardening stopped when photoperiod became constant. Rate of hardening increased with rate of change of photoperiod. Once max. hardiness was reached, frost hardiness was inherently unstable. Dehardening occurred when photoperiod lengthened and could occur spontaneously under constant conditions. |
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Palavras-Chave: |
Cold hardening; Fotoperiodo. |
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Thesagro: |
Geada; Pinus Radiata. |
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Thesaurus Nal: |
frost resistance; photoperiod. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01278naa a2200217 a 4500
001 1278596
005 2024-05-21
008 1989 bl uuuu u00u1 u #d
100 1 $aGREER, D. H.
245 $aPhotoperiod control of the initial phase of frost hardiness development in Pinus radiata.$h[electronic resource]
260 $c1989
520 $aFrost hardiness was measured in outdoor-grown seedlings, and in seedlings in controlled environments exposed to photoperiods shortening by 1, 3 or 5 min/d from 13 h to 9.5 h or constant at one of five periods from 9 to 12 h. Frost hardiness developed at a constant rate in response to shortening photoperiod once it had declined to about 12 h. Hardening stopped when photoperiod became constant. Rate of hardening increased with rate of change of photoperiod. Once max. hardiness was reached, frost hardiness was inherently unstable. Dehardening occurred when photoperiod lengthened and could occur spontaneously under constant conditions.
650 $afrost resistance
650 $aphotoperiod
650 $aGeada
650 $aPinus Radiata
653 $aCold hardening
653 $aFotoperiodo
700 1 $aSTANLEY, C. J.
700 1 $aWARRINGTON, I. J.
773 $tPlant, Cell and Environment, Oxford$gv. 12, n. 6, p. 661-668, 1989.
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Registro original: |
Embrapa Florestas (CNPF) |
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