Results 11 to 20 of about 1,363 (176)
Pollination by long-proboscid horseflies and its implications for reproductive isolation among coflowering Satyrium orchids in South Africa. [PDF]
Am J BotAbstract Premise Floral adaptations to pollinators can drive lineage diversification and promote coexistence of species. We investigated the reproductive biology of Satyrium longicolle, a South African orchid that we hypothesized to belong to a long‐proboscid horsefly pollination guild and examined overlap of pollinators and floral traits among ...
Johnson SD +3 more
europepmc +2 more sources
Notes on the self-pollination in Dendrobium biflorum (Orchidales, Dendrobiinae)
Acta Societatis Botanicorum Poloniae, 2012 The conditions favouring self-pollination are determined for a species of Dendrobium Sw. A survey of gynostemium micromorphology in collected flowers of Dendrobium biflorum revealed two stages of a unique form of autogamy: on germination of pollen ...
Agnieszka K. Kowalkowska +1 more
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Notulae Scientia Biologicae, 2018 The many reported inherent nutritional potential in African yam bean (Sphenostylis stenocarpa (Hochst. Ex. A. Rich.) Harms) seem to provide platform for the need of its genetic improvement.
Daniel Babasola ADEWALE +1 more
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Exchanging Genes Within a City: Analysis of Pollen Flow Patterns in a Narrow Endemic Plant Species Threatened by Urbanisation. [PDF]
Ecol EvolAnthropogenic habitat fragmentation can severely disrupt gene flow in endemic plants that depend on species‐specific native pollinators with limited dispersal ability. Using paternity analysis across fragmented and continuous populations, we found that pollen flow was maintained in intact bushland but was completely absent between fragments separated ...
Delnevo N +5 more
europepmc +2 more sources
Comparative reproduction mechanisms of three species of Ocimum L. (Lamiaceae)
Acta Agrobotanica, 2016 Ocimum species have a combination of reproductive system which varies with the locality and cultivar. We have studied here the reproductive mechanisms of five variants of three Ocimum species in Nigeria, namely: Ocimum canum Sims., O. basilicum L., and O.
Matthew Oziegbe +2 more
doaj +1 more source
Transfer of Self-Fruitfulness to Cultivated Almond from Peach and Wild Almond
Horticulturae, 2022 The almond [Prunus dulcis (Mill.) D.A. Webb] is normally self-sterile, requiring orchard placement of pollinizer cultivars and insect pollinators. Honeybees are the primary insect pollinators utilized, but climate change and the higher frequency of ...
Thomas M. Gradziel
doaj +1 more source
Acta Agriculturae Slovenica, 2020 To determinate self-compatible genotypes for increasing autogamy yielded, the ten sunflower genotypes were sown under four pollination methods i.e., open-, self-, hand- and sib-pollinations in a randomized complete block design replicated thrice at Kafr ...
Mohamed Ali ABDELSATAR +2 more
doaj +1 more source
The dark side of the rain: self-pollination setbacks due to water exposure in Pavonia varians Moric (Malvaceae), a species with rain-dependent flowering [PDF]
Acta Botânica Brasílica, 2020 Plants that occur in arid or semi-arid environments may restrict their flowering to the rainy season to ensure water availability for reproductive functions. However, the exposure of flowers to rainfall can compromise their functionality, such as complex
Arthur Domingos-Melo +3 more
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Acta Scientiarum. Agronomy, 2018 The objective of this study was to evaluate the influence of pollinating insects on canola productivity for different commercial hybrids, Hyola 61 and Hyola 433, in Minas Gerais State, Brazil.
Leandro Fuzaro +5 more
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Extent of cross-fertilization in Orobanche cumana Wallr.
Biologia Plantarum, 2013 Sunflower broomrape (Orobanche cumana Wallr.) is considered a self-fertilizing species, but there is no indication as to whether it is strictly self-fertilized or that it presents some extent of cross-fertilization.
M. I. Rodríguez-Ojeda +3 more
doaj +1 more source