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Effect of pollen limitation, additional nutrients, flower position and flowering phenology on fruit and seed production in Salvia verbenaca (Lamiaceae) / Luis Navarro (1998)
Titre : Effect of pollen limitation, additional nutrients, flower position and flowering phenology on fruit and seed production in Salvia verbenaca (Lamiaceae) Type de document : Tiré à part de revue Auteurs : Luis Navarro Année de publication : 1998 Importance : 441-446 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Régime et stratégie de reproduction (allogamie, autogamie, apomixie, reproduction asexué)
[CBNPMP-Thèmes] Stratégie de production de semences (fécondité)
[CBNPMP-Thèmes] Système de reproductionMots-clés : Salvia verbenaca L. Résumé : Variation in fruit set, seed/ovule ratio and mean single-seed weight among plants, and within plants among inflorescences, was investigated in a population of Salvia verbenaca in northwest Spain. Mean single-seed weight varied significantly among plants which flowered at about the same time and mean single-seed weight was significantly greater for plants that flowered late in the season than for plants flowering early in the season. Within individual plants, mean single-seed weight increased steadily between the earlier opening basal inflorescences and the later opening upper inflorescences. However, neither fruit set nor seed/ovule ratio varied significantly among inflorescences. Previous work on this population indicates that outcrossing improves mean single-seed weight, so I suggest that the observed pattern of among-inflorescence variation in mean single-seed weight may be attributable to a gradual increase in nonself pollen receipt as the flowering season progresses. Lien pérenne : DOI : 10.1111/j.1756-1051.1998.tb01521.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130317 Navarro, L. 1998. Effect of pollen limitation, additional nutrients, flower position and flowering phenology on fruit and seed production in Salvia verbenaca (Lamiaceae). Nordic journal of botany, 18(4) : 441-446.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 8432 Navarro L. Tiré à part Centre de documentation Tirés à part Consultable Is the dichogamy of Salvia verbenaca (Lamiaceae) an effective barrier to self-fertilization? / Luis Navarro (1997)
Titre : Is the dichogamy of Salvia verbenaca (Lamiaceae) an effective barrier to self-fertilization? Type de document : Tiré à part de revue Auteurs : Luis Navarro Année de publication : 1997 Importance : 111-117 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Régime et stratégie de reproduction (allogamie, autogamie, apomixie, reproduction asexué)
[CBNPMP-Thèmes] Système de reproductionMots-clés : Salvia verbenaca L. Résumé : Though dichogamy is generally interpreted as a means of preventing self-fertilization, the efficiency of this mechanism has been questioned. Little attention has been paid to functional aspects of male/female timing, such as variation over time in pollen germinability and in stigma receptivity. In the present study these aspects of male/female timing were investigated in the protandrous speciesSalvia verbenaca. To evaluate the effects of selfing, fruit set, total seed weight produced and seed/ovule ratio were also determined, (a) following artificial crossing, (b) following selfing (i.e. bagging) and (c) under natural conditions. Both pollen germinability and stigma receptivity peaked on the last day (day 3) of the flower's life, which presumably favours selfing. Neither fruit set nor seed/ovule ratio were significantly affected by pollination regime, but the total seed weight produced by artificially crossed plants was significantly higher than that produced by bagged or untreated plants. Neither fruit set, seed/ovule ratio nor total seed weight differed significantly between the two years of study. Thus, if aS. verbenaca flower receives outcrossing pollen it will produce a greater weight of seeds (with consequent advantages in terms of female reproductive success). However, the peaking of both pollen germinability and stigma receptivity on day 3 of the flower's life means that selfing is likely to occur if outcrossing pollen has not been received over the early part of the flower's life. Lien pérenne : DOI : 10.1007/BF00985212 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=130318 Navarro, L. 1997. Is the dichogamy of Salvia verbenaca (Lamiaceae) an effective barrier to self-fertilization? Plant systematics and evolution, 207 : 111-117.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 8433 Navarro L. Tiré à part Centre de documentation Tirés à part Consultable Las plantas en la medicina popular de la comarca de Monzón (Huesca) / José Vicente Ferrández Palacio (1993)
Titre : Las plantas en la medicina popular de la comarca de Monzón (Huesca) Type de document : Électronique Auteurs : José Vicente Ferrández Palacio (1958-) ; Juan-Manuel Sanz-Casales Editeur : Huesca : Instituto de estudios altoaragoneses Année de publication : 1993 Collection : Colección de Estudios Altoaragoneses num. 37 ISBN/ISSN/EAN : 978-84-86856-93-9 Langues : Espagnol (spa) Catégories : [CBNPMP-Géographique] Aragon
[CBNPMP-Thèmes] Plantes en médecine et pharmacieMots-clés : Salvia verbenaca L. Sambucus nigra L. Ephedra fragilis Desf. Eucalyptus globulus fumaria officinalis Gentiana lutea L., 1753 Ramonda myconi (L.) Reichenb. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=75751 Ferrández Palacio, J.V., Sanz-Casales, J.M. 1993. Las plantas en la medicina popular de la comarca de Monzón (Huesca). Instituto de estudios altoaragoneses, Huesca.Documents numériques
Consultable
Livre (1993)Adobe Acrobat PDF