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Registro Completo |
Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba; Embrapa Semiárido. |
Data corrente: |
31/10/1996 |
Data da última atualização: |
01/07/2019 |
Autoria: |
NUNEZ-ELISEA, R.; DAVENPORT, T. L. |
Título: |
Effect of leaf age duration of cool temperature treatment and photoperiod on bud dormancy release and floral initiation in mango. |
Ano de publicação: |
1995 |
Fonte/Imprenta: |
Scientia Horticulturae, Amsterdam, v. 62, n.1/2, p.63-73, 1995. |
Idioma: |
Inglês |
Conteúdo: |
Floral induction in apical buds of container-grown "Tommy Atkins" mango trees occurred after a cool temperature regime of 18grausC day/10grausC night, 12-h photoperiod, was imposed for a minimum period of 3 weeks on trees bearing leaves at least 7 weeks old. Growth of induced buds during exposure to the cool temperature regime appeared to be necessary for floral initiation, since buds resuming growth in warm temperatures (about 28grausC day/22grausC night) immediately after receiving an inductive, cool temperature treatment produced a vegetative flush. Trees bearing younger leaves or chemically forced (thidiazuron or ammonium nitrate application) to resume growth prior to completing 3 weeks of cool temperature treatment also produced vegetative growth insteadof inflorescences. Cool temperatures of 18grausC day/10grausC night with either 11-, 12-, 13-, or 24-h photoperiods resulted in floral initiation, whereas only vegetative growth occurred with warm temperatures of 30grausC/25grausC night using 11- or 13-h photoperiod. Results of this study suggest that floral induction of "Tommy Atkins" mango occurred during bud dormancy in cool temperatures around 15grausC, and that warm temperatures near 30grausC prevented floral initiation of inducedbuds. Cool temperatures rather than a short photoperiod caused floral induction, whereas warm temperatures rather than a long photoperiod inhibited flowering. |
Palavras-Chave: |
Domencia; Floral induction; Floral initiation; Fotoperiodo; Inducao floral; Iniciacao floral; Leaf age; Mango. |
Thesagro: |
Dormência; Floração; Folha; Gema; Idade; Manga; Mangifera Indica; Temperatura. |
Thesaurus Nal: |
buds; dormancy; mangoes; photoperiod; temperature. |
Categoria do assunto: |
-- F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02428naa a2200385 a 4500 001 1130832 005 2019-07-01 008 1995 bl --- 0-- u #d 100 1 $aNUNEZ-ELISEA, R. 245 $aEffect of leaf age duration of cool temperature treatment and photoperiod on bud dormancy release and floral initiation in mango. 260 $c1995 520 $aFloral induction in apical buds of container-grown "Tommy Atkins" mango trees occurred after a cool temperature regime of 18grausC day/10grausC night, 12-h photoperiod, was imposed for a minimum period of 3 weeks on trees bearing leaves at least 7 weeks old. Growth of induced buds during exposure to the cool temperature regime appeared to be necessary for floral initiation, since buds resuming growth in warm temperatures (about 28grausC day/22grausC night) immediately after receiving an inductive, cool temperature treatment produced a vegetative flush. Trees bearing younger leaves or chemically forced (thidiazuron or ammonium nitrate application) to resume growth prior to completing 3 weeks of cool temperature treatment also produced vegetative growth insteadof inflorescences. Cool temperatures of 18grausC day/10grausC night with either 11-, 12-, 13-, or 24-h photoperiods resulted in floral initiation, whereas only vegetative growth occurred with warm temperatures of 30grausC/25grausC night using 11- or 13-h photoperiod. Results of this study suggest that floral induction of "Tommy Atkins" mango occurred during bud dormancy in cool temperatures around 15grausC, and that warm temperatures near 30grausC prevented floral initiation of inducedbuds. Cool temperatures rather than a short photoperiod caused floral induction, whereas warm temperatures rather than a long photoperiod inhibited flowering. 650 $abuds 650 $adormancy 650 $amangoes 650 $aphotoperiod 650 $atemperature 650 $aDormência 650 $aFloração 650 $aFolha 650 $aGema 650 $aIdade 650 $aManga 650 $aMangifera Indica 650 $aTemperatura 653 $aDomencia 653 $aFloral induction 653 $aFloral initiation 653 $aFotoperiodo 653 $aInducao floral 653 $aIniciacao floral 653 $aLeaf age 653 $aMango 700 1 $aDAVENPORT, T. L. 773 $tScientia Horticulturae, Amsterdam$gv. 62, n.1/2, p.63-73, 1995.
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