Results 11 to 20 of about 40,392 (259)

Influence of plant reproductive systems on the evolution of hummingbird pollination

open access: yesEcology and Evolution, 2022
Many hummingbird‐pollinated plant species evolved from bee‐pollinated ancestors independently in many different habitats in North and South America. The mechanisms leading to these transitions are not completely understood.
Stefan Abrahamczyk   +6 more
doaj   +1 more source

Fruit set and yield of pear cultivars as affected by reduced bee pollination period

open access: yesInternational Journal of Horticultural Science, 2009
Results of our experiments prove that pear is more or less sensitive to the reduced bee pollination period. However, the reaction (or the sensitivity) of cultivars may be different to the reduced bee pollination.
P. Benedek, J. Varga
doaj   +1 more source

Pollination by Euglossine Bees [PDF]

open access: yesEvolution, 1968
The relationships between some orchid flowers and male euglossine bees were first observed in Darwin's time (Criiger, 1865), but the peculiarities of these interactions have been recognized only within the last decade. Our knowledge of the relationships has increased greatly in recent years, especially through the efforts of Dodson (Dodson and Frymire,
openaire   +3 more sources

The evolution of Cayaponia (Cucurbitaceae) [PDF]

open access: yes, 2010
Premise of the study: The Cucurbitaceae genus Cayaponia comprises ∼60 species that occur from Uruguay to the southern United States and the Caribbean; C. africana occurs in West Africa and on Madagascar.
Duchen, Pablo, Renner, Susanne S.
core   +1 more source

Some flower characters, variety features and environmental effects affecting bee pollination of pear (Pyrus communis L.): a review of the results of latest research

open access: yesInternational Journal of Horticultural Science, 2000
Intensive research has been implemented on different aspects of the bee pollination of pear in Hungary in the past decade, extending to the following topics: the effect of the opening sequence of the flowers within the inflorescence of pear cultivars on ...
P. Benedek
doaj   +1 more source

Pollination: Influencing bee behaviour with caffeine

open access: yesCurrent Biology, 2021
Plant secondary metabolites found in floral nectar can affect the behaviour of pollinating insects, but how these changes benefit plants directly is little understood. An experimental study with bumblebees shows that recalling a caffeine-enhanced odour memory can increase flower visitation.
Hempel de Ibarra, Natalie, Rands, Sean A
openaire   +3 more sources

Changes in Some Quality Criteria During Controlled Atmosphere (CA) Storage of Peaches

open access: yesInternational Journal of Horticultural Science, 2001
Intensive research has been implemented on different aspects of the bee pollination of pear in Hungary in the past decade, extending to the following topics: the effect of the opening sequence of the flowers within the inflorescence of pear cultivars on ...
A. Eris, B. Akbudak
doaj   +1 more source

Pollination services in the UK: how important are honeybees? [PDF]

open access: yes, 2011
Pollination services are known to provide substantial benefits to human populations and agriculture in particular. Although many species are known to provide pollination services, honeybees (Apis mellifera) are often assumed to provide the majority of ...
Bailey, Alison P.   +3 more
core   +1 more source

The impact of lowbush blueberry (Vaccinium angustifolium Ait.) and cranberry (Vaccinium macrocarpon Ait.) pollination on honey bee (Apis mellifera L.) colony health status.

open access: yesPLoS ONE, 2020
Commercial lowbush blueberry (Vaccinium angustifolium Ait.) and cranberry (Vaccinium macrocarpon Ait.) crops benefit from the presence of honey bee (Apis mellifera L.) for pollination.
Claude Dufour   +2 more
doaj   +1 more source

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