Results 101 to 110 of about 75,211 (301)
Agribusiness, EarlyView.ABSTRACT Africa's cultural and colonial heritage has profoundly segmented rice markets. Whereas in ancient centers of rice domestication, consumers maintained preferences for local rice consistent with their cultural heritage, preferences have shifted toward imported Asian rice in coastal areas around seaports, due to prior exposure to colonial import ...
Kofi Britwum, Matty Demont
wiley +1 more source
Cumulative individual seed production in the polycarpic Caesalpinia gilliesii (Fabaceae): effects of temporal variability in floral display, plant density and pollination [PDF]
, 2016 In polycarpic species, floral display size and density of conspecific neighbours are time variable as well as their effects on pollination and fecundity.
Ashworth, Lorena +2 more
core
The Role of Certifications in Improving Household Food Security Among Peruvian Farmers
Agribusiness, EarlyView.ABSTRACT Achieving global food security requires sustainable transformations in agri‐food systems. Voluntary Sustainability Standards (VSS) such as Organic and Fairtrade aim to internalize certain social and environmental costs while promoting more equitable value distribution, improved market access, and sustainable production practices.
Lisa‐Marie Schulte, Awudu Abdulai
wiley +1 more source
Composition and Host-Use Patterns of a Scarab Beetle (Coleoptera: Scarabaeidae) Community Inhabiting the Canopy of a Lowland Tropical Rainforest in Southern Venezuela [PDF]
, 2019 The adult scarab beetle fauna of the canopy in a lowland tropical rainforest in southern Venezuela was observed and collected by means of a 42 m-tall tower crane for a complete year.
Kirmse, Susan, Ratcliffe, Brett C.
core +2 more sources
American Journal of Botany, EarlyView.Abstract Premise Understanding how plant populations adapt to water limitation through stomatal traits is key to predicting drought responses. The dominant C4 grass Andropogon gerardi, distributed across sharp climate gradients in North America, offers an excellent focal species to study stomatal architecture (size and density).
Jack Sytsma +6 more
wiley +1 more source
Rangewide responses of Mimulus cardinalis to an extreme heat event
American Journal of Botany, EarlyView.Abstract Premise Extreme events are an understudied aspect of ongoing anthropogenic climate change that could play a disproportionate role in the threat that rapid environmental shifts pose to natural populations. Methods We exposed plants originating from seeds that were harvested before (ancestors) and after (descendants) multiple extreme heat events
Lucas J. Albano +6 more
wiley +1 more source
HorticulturaeThis study systematically assessed floral phenotypic traits, pollen viability, and ultrastructure in 120 male progeny of Actinidia chinensis ‘Jinfeng’.
Yanyan Chen +7 more
doaj +1 more source
Preliminary study on effect of agricultural activities in pollen spectrum of argentinean honey [PDF]
, 2019 Honey floral origin is determined by the harversting region, but anthropogenic factors as agriculture expansion might modify the environmental flora and consequently honey floral origin.
Fagundez, Guillermina Andrea +2 more
core +2 more sources
Floral Trait Preferences of Three Common wild Bee Species
InsectsThe interaction between bees and flowering plants is mediated by floral cues that enable bees to find foraging plants. We tested floral cue preferences among three common wild bee species: Lasioglossum villosulum, Osmia bicornis, and Bombus terrestris.
Kim C. Heuel +3 more
openaire +3 more sources
American Journal of Botany, EarlyView.Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Steven D. Johnson +5 more
wiley +1 more source