Results 71 to 80 of about 199,462 (316)

Advancing European Plant Variety Registration: Data‐Driven Insights and Stakeholder Perspectives

open access: yesAgribusiness, EarlyView.
ABSTRACT Efficient plant variety registration is crucial for fostering innovation in the European Union, yet the current regulatory framework is complex and faces calls for reform. This study provides data‐driven evidence to inform the ongoing legislative debate by employing a mixed‐methods approach.
Sergio Urioste Daza   +2 more
wiley   +1 more source

Experimental investigation of micrometeorological influences on birch pollen emission [PDF]

open access: yes, 2010
Diseases due to aeroallergens constantly increased over the last decades and affect more and more people. Adequate protective and pre-emptive measures require both reliable assessment of production and release of various pollen species, and the ...
Michel, Dominik   +3 more
core  

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios   +4 more
wiley   +1 more source

Monitoring the fluvial palynomorph load in a lowland temperate catchment and its relationship to suspended sediment and discharge [PDF]

open access: yes, 2008
Despite it being a component of the seston we know very little about fluvial (waterborne) pollen and spore (palynomorph) transport. This paper presents the results of a monitoring programme conducted over two years and at a catchment scale in South West ...
Walling, D.E.   +2 more
core   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen   +5 more
wiley   +1 more source

An investigation into the recent vegetation history of Great Wood, near Eggleston Co. Durham using fine resolution pollen analysis of Mor humus and relevant historical evidence. [PDF]

open access: yes, 1993
This study investigated the recent vegetation history of an ancient woodland, Great Wood, near Eggleston Co. Durham which has been part of the lands of Eggleston Hall since at least 1614.
Payne, Joanne
core  

2022-07_Data_Quantifying-the-Influence-of-Pollen-Ageing-on-the-Adhesive-Properties-of-Hypochaeris-Radicata-Pollen

open access: yes, 2022
Data for publication at MDPI Insects. Sorted according to Figures in the publication.  Fig2: Bright field images of Hypochaeris radicata pollen on glass before and after each of several centrifugation experiments.
Steven Huth (13005360)
core   +1 more source

[b][/b]Relative efficiencies of the Burkard 7-Day, Rotorod and Burkard Personal samplers for Poaceae and Urticaceae pollen under field conditions

open access: yesAnnals of Agricultural and Environmental Medicine, 2014
[b]Introduction[/b]. In aerobiological studies it is often necessary to compare concentration data recorded with different models of sampling instrument.
Robert Peel   +3 more
doaj  

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen   +2 more
wiley   +1 more source

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard   +4 more
wiley   +1 more source

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