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CBNPMP-Thématique > Physiologie végétale > Germination : généralités > Ecologie de la germination
Ecologie de la germination |
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Titre : A comparative study of germination ecology of four Papaver taxa Type de document : Tiré à part de revue Auteurs : Laila M. Karlsson ; Per Milberg Année de publication : 2007 Importance : 935-946 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Ecologie de la germination Mots-clés : Papaver Résumé : Background and aims: Comparative studies of closely related taxa can increase understanding of adaptations and changes in seed dormancy and germination preferences in an evolutionary perspective. For such studies, a method to describe and compare the performance of taxa in a general way is needed. The germination ecology of four Papaver taxa was studied with the aim of describing and comparing their responses to different seasonal temperature regimes. Methods: Germination of Papaver argemone, P. rhoeas, P. dubium ssp. dubium and P. dubium ssp. lecoqii was investigated in three different artificial climates over 2.5 years. Seeds were collected in southern Sweden, and samples from different populations were used as replicates of taxa. Key results: Despite substantial intra-taxa variation, there were clear taxon-specific responses. Most germination occurred in the warmest climate. In general, the warmer the climate the more germination occurred in autumn instead of spring. Papaver argemone, phylogenetically most distant from the other taxa, was, in contrast to the others, restricted to germinating only at lower temperatures. Conclusions: Seed dormancy and germination may be described by dormancy pattern, germination preferences and dormancy strength. The general dormancy pattern was a common feature for these taxa and therefore probably an evolutionary conservative character. Germination preferences varied between taxa, resulting in different temperature optima and intervals for germination, and dormancy strength was to some extent taxon-specific, but highly variable. The dormancy pattern explained how the taxa can perform as winter annuals in warmer climates, but mainly as summer annuals in colder climates. Hence, there is no need to interpret the within-taxon temporal differences in seedling emergence as local adaptations. In the field, an entire seed cohort will not germinate during a single season. Instead, emergence will be distributed over several seasons, regardless of local climate, weather and soil cultivation methods. Lien pérenne : DOI : 10.1093/aob/mcm045 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=133987 Karlsson, Laila M., Milberg, Per 2007 A comparative study of germination ecology of four Papaver taxa. Annals of Botany, 99 : 935-946.Documents numériques
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Article (2007)URL Condition de levée de dormance des principales plantes bioindicatrices / Gérard Ducerf (2006)
Titre : Condition de levée de dormance des principales plantes bioindicatrices Type de document : Imprimé Auteurs : Gérard Ducerf (1949-) Editeur : Promo nature Année de publication : 2006 Importance : 34 p. Langues : Français (fre) Catégories : [CBNPMP-Thématique] Dormance
[CBNPMP-Thématique] Ecologie de la germination
[CBNPMP-Thématique] Mauvaises herbesPermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=79402 Ducerf, Gérard (1949-) , 2006. Condition de levée de dormance des principales plantes bioindicatrices. Promo nature, [S.l.]. 34 pp.Differences in germination and seedling establishment of alien and native Impatiens species / Irena Perglova in Preslia, 81 (2009)
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Titre : Differences in germination and seedling establishment of alien and native Impatiens species Type de document : Numérique Auteurs : Irena Perglova ; Jan Pergl (1977-) ; Hana Skalova ; Lenka Moravcová ; Vojtěch Jarošík (1958-2013) ; Petr Pyšek Année de publication : 2009 Article en page(s) : 357-375 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Ecologie de la germination
[CBNPMP-Thématique] Physiologie de la germination
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[CBNPMP-Thématique] Banque de semencesMots-clés : Impatiens Résumé : Comparative studies of closely related species may provide useful insights into the effect of species traits on invasion success since some of the biases associated with multispecies studies, such as phylogenetic effects, are considerably reduced by virtue of the experimental design. In this study seed and seedling traits of three congeneric alien species in Europe, differing in their region of origin, invasion status and history (Impatiens glandulifera, I. parviflora, I. capensis), were compared with the native I. noli-tangere in laboratory and common garden experiments. Seeds of I. glandulifera required the shortest period of stratification, germinated well both under laboratory and experimental garden conditions and the seedlings produced more biomass than those of the other species. Seeds of I. parviflora required a longer period of stratification, had the highest percentage germination but seedling emergence in the experimental garden was poorer than in I. glandulifera. Neither of these two species invasive in the Czech Republic formed soil seed banks. The native I. noli-tangere had the lowest percentage germination and formed a short-term persistent seed bank. Impatiens capensis germinated well in the laboratory, had the highest seedling emergence in the garden and its seed remained viable in the soil for three years. This indicates that in terms of germination and emergence, this species is comparable with the two invasive alien congeners and there appear to be no constraints to its invasion in the Czech Republic where it does not occur yet. Its absence may be due to a low propagule pressure; in the national flora I. capensis is listed as a potential future invader without mentioning it being cultivated in this country. Our results indicate that differences in the invasiveness of three alien species of balsams in the temperate zone of Central Europe can be attributed, at least in part, to their differing performances in the early stages of their life cycle. The short period of time required for seed stratification and the high seedling biomass of I. glandulifera might have increased its invasion potential compared to other Impatiens species occurring in the Czech Republic. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142551
in Preslia > 81 (2009) . - 357-375Perglova, Irena, Pergl, Jan (1977-), Skalova, Hana, Moravcová, Lenka, Jarošík, Vojtěch (1958-2013), Pyšek, Petr 2009 Differences in germination and seedling establishment of alien and native Impatiens species. Preslia, 81: 357-375.Documents numériques
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Article (2009)URL Dynamique après perturbations des populations de deux espèces de Cistus à reproduction sexuée obligatoire / A. Troumbis (1985)
Titre : Dynamique après perturbations des populations de deux espèces de Cistus à reproduction sexuée obligatoire Type de document : Imprimé Auteurs : A. Troumbis Année de publication : 1985 Importance : 253 p. Langues : Français (fre) Catégories : [CBNPMP-Thématique] Stratégie de production de semences (fécondité)
[CBNPMP-Thématique] Banque de semences dans le sol
[CBNPMP-Thématique] Ecologie de la germination
[CBNPMP-Thématique] Mode de diffusion des semences
[CBNPMP-Thématique] Dormance
[CBNPMP-Thématique] Régime et stratégie de reproduction (allogamie, autogamie, apomixie, reproduction asexué)
[CBNPMP-Thématique] Dynamique démographique, sélectionMots-clés : Cistus salviifolius L. Cistus villosus L. Note de contenu : Thèse, Université Paul Sabatier, Toulouse Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=77930 Troumbis, A. , 1985. Dynamique après perturbations des populations de deux espèces de Cistus à reproduction sexuée obligatoire. , . 253 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 12361 8420 Thèse et mémoire Centre de documentation Bibliothèque Consultable Documents numériques
Consultable
Article (1967)Adobe Acrobat PDF Ecology of pioneer species of early stages in secondary succession II. The seed production / Ichiroku Hayashi (1968)
PermalinkEffects of temperature and salinity on germination of Ruta graveolens L. / Khaled Mguis in Acta botanica gallica, 158 (4) (12/2011)
PermalinkEffet de la température, de la lumière, de la profondeur et de la durée d'enfouissement sur la germination de quelques adventices / Teresa Vasconcelos (1984)
PermalinkEssai de synthèse sur la dynamique actuelle des châtaigneraies cévenoles et ses conséquences sur la diversité végétale / François Romane in Acta botanica gallica, 152 (4) (12/2005)
PermalinkLe froid et les graines de quelques abiétacées / Vabre-Durrieu in Bulletin de la Société d'histoire naturelle de Toulouse, 91 (1-2) (1956)
PermalinkGermination des graines du Sapin de Numidie (Abies numidica De Lannoy) en conditions contrôlées / Arezki Derridj in Naturalia Maroccana, 2 (1-2) (01/2004)
PermalinkProduction grainière et germination des graines de provenances algériennes du Cèdre de l'Atlas (Cedrus atlantica M.) / M Illoul in Naturalia Maroccana, 2 (1-2) (01/2004)
PermalinkRegeneration of Cyperaceae, with particular reference to seed ecology and seed banks / Mary Alessio Leck in Perspectives in Plant Ecology, Evolution and Systematics, 7 (2) (2005)
PermalinkRôle de l'allélopathie dans les difficultés de régénération du sapin (Abies alba Mill.). I- Propriétés phytotoxiques des hydrosolubles d'aiguilles de sapin / Michel Becker (1984)
PermalinkRôle de l'allélopathie dans les difficultés de régénération du sapin (Abies alba Mill.). II- étude des lessivats naturels de feuillage de litière et d'humus / Michel Becker (1985)
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