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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
22/04/1997 |
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Data da última atualização: |
22/04/1997 |
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Autoria: |
JOLY, C. A.; FELIPPE, G. M.; DIETRICH, S. M. C.; CAMPOS-TAKAKI, G.M. |
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Título: |
Physiology of germination and seed gel analysis in two populations of Magonia pubescens St.Hil. |
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Ano de publicação: |
1980 |
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Fonte/Imprenta: |
Revista Brasileira de Botanica, v.3, n.1/2, p.1-9, 1980. |
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Idioma: |
Inglês |
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Conteúdo: |
This work, presents a comparative study between two populations of Magonia pubescens in relation to their seed germination physiology. The effects of constant and alternating temperatures were studied, and it was shown that seeds germinate between 10 to 40C. The behaviour of the two populations was very similar both in constant and alternating temperatures. In presoaked intact seeds only exposures for 72 hours at 45 C inhibited germination. With decoated seeds exposures for 72 hours at 45C inhibited germination if the seeds had been imbibed for 6 hours. The carbohdrate, protein and free sugars content was very similar in the gel formed by the seeds of both populations. After hydrolysis xylose, glucose, galacturonic and glucuronic acids were detected. During..germination there was no change in the level of proteins and carbohydrates in the gel. The fungistatic property of the gel was maintained during the period of germination. |
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Palavras-Chave: |
Coloide; Indigenous organisms; Magonia pubescens; Plant physilogy; Planta nativa; Seed. |
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Thesagro: |
Cerrado; Fisiologia Vegetal; Germinação; Semente; Temperatura. |
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Thesaurus Nal: |
colloids; germination; temperature. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01814naa a2200325 a 4500
001 1552746
005 1997-04-22
008 1980 bl --- 0-- u #d
100 1 $aJOLY, C. A.
245 $aPhysiology of germination and seed gel analysis in two populations of Magonia pubescens St.Hil.
260 $c1980
520 $aThis work, presents a comparative study between two populations of Magonia pubescens in relation to their seed germination physiology. The effects of constant and alternating temperatures were studied, and it was shown that seeds germinate between 10 to 40C. The behaviour of the two populations was very similar both in constant and alternating temperatures. In presoaked intact seeds only exposures for 72 hours at 45 C inhibited germination. With decoated seeds exposures for 72 hours at 45C inhibited germination if the seeds had been imbibed for 6 hours. The carbohdrate, protein and free sugars content was very similar in the gel formed by the seeds of both populations. After hydrolysis xylose, glucose, galacturonic and glucuronic acids were detected. During..germination there was no change in the level of proteins and carbohydrates in the gel. The fungistatic property of the gel was maintained during the period of germination.
650 $acolloids
650 $agermination
650 $atemperature
650 $aCerrado
650 $aFisiologia Vegetal
650 $aGerminação
650 $aSemente
650 $aTemperatura
653 $aColoide
653 $aIndigenous organisms
653 $aMagonia pubescens
653 $aPlant physilogy
653 $aPlanta nativa
653 $aSeed
700 1 $aFELIPPE, G. M.
700 1 $aDIETRICH, S. M. C.
700 1 $aCAMPOS-TAKAKI, G.M.
773 $tRevista Brasileira de Botanica$gv.3, n.1/2, p.1-9, 1980.
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Embrapa Cerrados (CPAC) |
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