Results 21 to 30 of about 642 (141)
Comparing levels of geitonogamous visitation by honey bees and other pollinators
Journal of Pollination Ecology, 2023 Geitonogamy, the transfer of pollen from one flower to another on the same plant, is often the primary means of self-pollination in flowering plants.
Dillon Travis, Joshua Kohn
doaj +1 more source
American highbush cranberry maintains strong population structure despite naturalization of Eurasian relatives in North America. [PDF]
Am J BotAbstract Premise The proper classification of taxa is often debated, particularly when organisms lack qualitative diagnostic traits. Highbush cranberry taxa (Viburnum spp.) have been the subject of such disputes since their characterization by 18th‐ and 19th‐century botanists. Despite their allopatric distributions—V.
Tork DG, Anderson NO, Brusa A, Smith AG.
europepmc +2 more sources
Journal of Pollination Ecology, 2010 Many plant species rely on female bumble bee workers for pollen transfer. However, male bumble bees, which differ both behaviourally and morphologically from female workers, also visit many species of flowering plants and may transfer pollen differently.
Katherine Ostevik +2 more
doaj +1 more source
Journal of Pollination Ecology, 2011 The impact of introduced species on native organisms is one of the main conservation concerns around the world. To fully understand the effect of introduced pollinators on native plants, it is important to know the reproductive biology of the focal ...
Marcos A. Caraballo-Ortiz +1 more
doaj +1 more source
Acta Societatis Botanicorum Poloniae, 2011 A series of studies on pollination biology of the Epipactis atrorubens (Hoffm.) Besser, E. purpurata Sm., and E. palustris (L.) Crantz populations was conducted in Poland, Lithuania and Czech Republic between 2003 and 2010.
Anna Jakubska-Busse, Marcin Kadej
doaj +1 more source
Anales del Jardín Botánico de Madrid, 2013 Angiosperms evolved different systems to attract effective pollinators while reducing selfing in hermaphroditic flowers. Selfing ability can be advantageous when pollinators and/or mates are scarce, although inbreeding depression may largely reduce those
Conchita Alonso, Marina García-Sevilla
doaj +1 more source
Acta Botânica Brasílica, 2007 The pollinators and breeding system of two species of Vellozia (Velloziaceae) from high-altitude quartzitic grasslands in SE Brazil were studied. Vellozia leptopetala is shrubby and grows solely on rocky outcrops, V. epidendroides is herbaceous and grows
Claudia Maria Jacobi +1 more
doaj +1 more source
Reproductive biology of the biofuel plant Jatropha curcas in its center of origin [PDF]
PeerJ, 2016 In this work, we studied the main characteristics of flowering, reproductive system and diversity of pollinators for the biofuel plant Jatropha curcas (L.) in a site of tropical southeastern Mexico, within its center of origin. The plants were monoecious
Manuel Rincón-Rabanales +5 more
doaj +2 more sources
Pistillate flowers experience more pollen limitation and less geitonogamy than perfect flowers in a gynomonoecious herb [PDF]
New Phytologist, 2013 Summary Gynomonoecy, a sexual system in which plants have both pistillate (female) flowers and perfect (hermaphroditic) flowers, occurs in at least 15 families, but the differential reproductive strategies of the two flower morphs within one individual remain unclear.
Jannathan, Mamut +3 more
openaire +2 more sources
Pesquisa Agropecuária Brasileira, 2009 O objetivo deste trabalho foi avaliar alguns aspectos da biologia floral e do sistema reprodutivo de Jatropha curcas, em Janaúba, MG. Foram registrados: o número de flores femininas e masculinas; o intervalo de abertura das flores femininas; e a formação
Ana Cristina Pinto Juhász +4 more
doaj +1 more source