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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Norte / UEP-Parnaíba. |
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Data corrente: |
07/10/1994 |
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Data da última atualização: |
07/10/1994 |
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Autoria: |
SRINIVASAN, C.; MULLINS, M. G. |
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Título: |
Physiology of flowering in the grapevine - a review |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
American Journal Enology Viticulture, v.32, n.1, p.47-63, 1981. |
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Idioma: |
Inglês |
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Conteúdo: |
The vegetative and reproductive anatomy of the grapevine is discussed with emphasis on recent interpretations based on scaning electron microscopy. The terminology of flowering in Vitis is defined and a developmental code, comprising Stages 0 to 11, is proposed for the events leading to formation of flowers. In brief, flowering in the grapevine involves three main steps: 1) Formation of Anlagen or uncommitted primordia (Stages 0 to 1); 2)Differentation of Anlagen to form inflorescence primordia (Stages 2 to 7); and 3)Differentation of flowers (Stages 8 to 11). The literature on the factors that influence flowering in grapes is reviewed under three major headings: 1)Biochemical changes in apices during inflorescence primordia formation; 2) Effects ofenvironmental factors, including temperature, light intensity, phothoperiod, water stress and mineral nutrition and 3)Role of Phytohormones. Anlagen develop into inflorescences, tendrils or shoots depending on the environment and hormonal factors. A hypothetical scheme for the hormonal control of Anlagen, tendril and inflorescence formation is proposed. It is suggested that flowering in grapes is controlled by the gibberellin:cytokinin balance. Formation of the inflorescence axis (the Anlage) is giberellin controlled, but subsequent differentation into flowers is regulated by cytokinin. |
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Thesagro: |
Fisiologia; Floração; Uva. |
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Categoria do assunto: |
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Marc: |
LEADER 01802naa a2200169 a 4500
001 1074423
005 1994-10-07
008 1981 bl --- 0-- u #d
100 1 $aSRINIVASAN, C.
245 $aPhysiology of flowering in the grapevine - a review
260 $c1981
520 $aThe vegetative and reproductive anatomy of the grapevine is discussed with emphasis on recent interpretations based on scaning electron microscopy. The terminology of flowering in Vitis is defined and a developmental code, comprising Stages 0 to 11, is proposed for the events leading to formation of flowers. In brief, flowering in the grapevine involves three main steps: 1) Formation of Anlagen or uncommitted primordia (Stages 0 to 1); 2)Differentation of Anlagen to form inflorescence primordia (Stages 2 to 7); and 3)Differentation of flowers (Stages 8 to 11). The literature on the factors that influence flowering in grapes is reviewed under three major headings: 1)Biochemical changes in apices during inflorescence primordia formation; 2) Effects ofenvironmental factors, including temperature, light intensity, phothoperiod, water stress and mineral nutrition and 3)Role of Phytohormones. Anlagen develop into inflorescences, tendrils or shoots depending on the environment and hormonal factors. A hypothetical scheme for the hormonal control of Anlagen, tendril and inflorescence formation is proposed. It is suggested that flowering in grapes is controlled by the gibberellin:cytokinin balance. Formation of the inflorescence axis (the Anlage) is giberellin controlled, but subsequent differentation into flowers is regulated by cytokinin.
650 $aFisiologia
650 $aFloração
650 $aUva
700 1 $aMULLINS, M. G.
773 $tAmerican Journal Enology Viticulture$gv.32, n.1, p.47-63, 1981.
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Registro original: |
Embrapa Meio Norte / UEP-Parnaíba (CPAMN-UEPP) |
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