Results 1 to 10 of about 11,398 (258)

Heritability of nectar production in Echium vulgare [PDF]

open access: yesHeredity, 2004
Heritabilities of nectar production in the wild species Echium vulgare were estimated as realised heritability under controlled and field conditions. The nectar production of offspring from high- and low-nectar-producing parents was significantly different in both controlled and field conditions, indicating that nectar production is in part genetically
Peter Klinkhamer
exaly   +4 more sources

Temporal Dynamics of Nectar and Pollen Production in Protandrous Flowers of Nigella damascena [PDF]

open access: yesPlants
This study examined nectar and pollen production as well as pollinator visitation in Nigella damascena (Ranunculaceae), an annual ornamental and seed crop, over two flowering seasons.
Zuzanna Łabęcka   +2 more
doaj   +2 more sources

Nectar Analysis Throughout the Genus Nicotiana Suggests Conserved Mechanisms of Nectar Production and Biochemical Action. [PDF]

open access: yesFront Plant Sci, 2018
We have evaluated the floral nectars of nine species from different sections of the genus Nicotiana. These nine species effectively cover the genus. We found that the nectary glands from these different species showed similar developmental regulation with swelling of nectaries during the first half of development and a distinct color change in the ...
Silva FA   +3 more
europepmc   +5 more sources

Metabolic and transcriptomic analyses of nectaries reveal differences in the mechanism of nectar production between monocots (Ananas comosus) and dicots (Nicotiana tabacum) [PDF]

open access: yesBMC Plant Biology
Background Nectar is offered by numerous flowering plants to attract pollinators. To date, the production and secretion of nectar have been analyzed mainly in eudicots, particularly rosids such as Arabidopsis.
Thomas Göttlinger   +4 more
doaj   +2 more sources

Nectar robbing by the invasive bumblebee Bombus terrestris (Apidae) changes the behavior of native flower visitors of Fuchsia magellanica Lam. (Onagraceae) but not seed set [PDF]

open access: yesPeerJ
Mutualisms between plants and pollinators may be threatened by nectar robbers, as these animals typically consume nectar without providing the essential pollination service.
Carlos E. Valdivia   +2 more
doaj   +3 more sources

Nectar production and pollination in peach

open access: yesInternational Journal of Horticultural Science, 2000
Observations were made at two growing sites, Siófok and Szatymaz, in the years 1998 and 1999, on 16 peach varieties. The production of nectar was measured, the foraging behaviour of bees, fruit set and the effect of exclusion of bee visits for different ...
J. Nyéki   +3 more
doaj   +3 more sources

Nectar Production and Three Main Sugars in Nectar of Salvia pratensis and Salvia glutinosa in Correlation with Abiotic Factors

open access: yesAgriculture
Floral nectar is mainly a reward in the form of food for pollinators. Its composition plays an important role when pollinators choose their food. Several studies have shown that the popularity of flowers with nectar is influenced by the concentration and
Katja Malovrh   +3 more
doaj   +3 more sources

Dracula’s mistress: removal of blood-red floral nectar results in secretion of more nectar [PDF]

open access: yesPlant Ecology and Evolution, 2020
Background and aims – Flowers of Jaltomata quipuscoae (Solanaceae) secrete blood-red nectar that serves as an energy reward and possible attractant to pollinators.
Thomas Mione, Isaac Diaz
doaj   +3 more sources

Influence of microclimatic conditions on nectar exudation in Glechoma hirsuta  W. K [PDF]

open access: yesArchives of Biological Sciences, 2005
The nectar production of Glechoma hirsuta W. K. grown under different microclimatic habitat conditions was evaluated by determining the total daily nectar quantity per flower, diurnal dynamics of nectar secretion, the nectar secretion rate, and sugar ...
Mačukanović-Jocić Marina   +1 more
doaj   +1 more source

Floral trait variation across individual plants within a population enhances defense capability to nectar robbing

open access: yesPlant Diversity, 2023
Floral trait variation may help pollinators and nectar robbers identify their target plants and, thus, lead to differential selection pressure for defense capability against floral antagonists.
Shuang Tie   +5 more
doaj   +1 more source

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