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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
20/07/1992 |
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Data da última atualização: |
20/07/1992 |
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Autoria: |
NUNEZ-ELISEA, R.; DAVENPORT, T. L. AND CALDEIRA, M. L. |
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Afiliação: |
IFAS, University of Florida. |
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Título: |
An Experimental System to Study Mango Flowering Using Containerized Trees Propagated by Air-Layering. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Proc. Fla. State Hort. Soc. , v.104, 1991. |
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Idioma: |
Inglês |
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Conteúdo: |
A method was developed to consistently induce floral differentiaton in mature ' Tommy Atkins ' mango trees by exposure to chilling. Trees were propagated by air-layering branches of adult, field trees. Rooting of girdled branches was induced within 12 weeks with the aid of 2% naphthaleneacetic acid in lanolin paste. Rooted air-layers were pruned and completely defoliated upon potting to regenerate the canopies. Mature, fully-expanded vegetative shoots were obtained within 10 weeks of pruning. Trees with developmentally uniform canopies were exposed to a chilling treatment of 18/10 C (day/night temperature, 12-h photoperiod). Defoliation of shoot tips stimulated initiation of apical buds. Bud break of nearly all stimulated buds occurred after 7 to 8 weeks of chilling. More than 80% of buds differentiated floral primordia. bud meristematic activity during chilling was required for floral differentiation. Chilling induced flowering of containerized trees regardless of time of the year. |
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Palavras-Chave: |
chilling; floral de velopment. |
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Thesaurus Nal: |
defoliation; phenology; pruning; vegetative propagation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01597naa a2200205 a 4500
001 1632404
005 1992-07-20
008 1991 bl uuuu u00u1 u #d
100 1 $aNUNEZ-ELISEA, R.
245 $aAn Experimental System to Study Mango Flowering Using Containerized Trees Propagated by Air-Layering.
260 $c1991
520 $aA method was developed to consistently induce floral differentiaton in mature ' Tommy Atkins ' mango trees by exposure to chilling. Trees were propagated by air-layering branches of adult, field trees. Rooting of girdled branches was induced within 12 weeks with the aid of 2% naphthaleneacetic acid in lanolin paste. Rooted air-layers were pruned and completely defoliated upon potting to regenerate the canopies. Mature, fully-expanded vegetative shoots were obtained within 10 weeks of pruning. Trees with developmentally uniform canopies were exposed to a chilling treatment of 18/10 C (day/night temperature, 12-h photoperiod). Defoliation of shoot tips stimulated initiation of apical buds. Bud break of nearly all stimulated buds occurred after 7 to 8 weeks of chilling. More than 80% of buds differentiated floral primordia. bud meristematic activity during chilling was required for floral differentiation. Chilling induced flowering of containerized trees regardless of time of the year.
650 $adefoliation
650 $aphenology
650 $apruning
650 $avegetative propagation
653 $achilling
653 $afloral de velopment
700 1 $aDAVENPORT, T. L. AND CALDEIRA, M. L.
773 $tProc. Fla. State Hort. Soc.$gv.104, 1991.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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