Blar i Vitenskapelige artikler på tittel
Viser treff 1480-1499 av 1557
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UAV-Based Hyperspectral Imagery for Detection of Root, Butt, and Stem Rot in Norway Spruce
(Peer reviewed; Journal article, 2022-08-08)Numerous species of pathogenic wood decay fungi, including members of the genera Heterobasidion and Armillaria, exist in forests in the northern hemisphere. Detection of these fungi through field surveys is often difficult ... -
Understanding peer support: a qualitative interview study of doctors one year after seeking support
(Peer reviewed; Journal article, 2023-04-01)Background Doctors’ health is of importance for the quality and development of health care and to doctors themselves. As doctors are hesitant to seek medical treatment, peer support services, with an alleged lower threshold ... -
Understanding the influence of tree size distribution on the CTL harvesting productivity of two different size harvesting machines
(Peer reviewed; Journal article, 2024-04-13)Tree size is one of the major factors that determines harvester productivity and is heavily influenced by forest managerial activities. Stand silvicultural management can lead to managing tree size, the distribution of ... -
Unit-level and area-level small area estimation under heteroscedasticity using digital aerial photogrammetry data
(Journal article; Peer reviewed, 2018)In many applications, estimates are required for small sub-populations with so few (or no) sample plots that direct estimators that do not utilize auxiliary variables (e.g. remotely sensed data) are not applicable or result ... -
Unveiling the Role of Edaphic Microalgae in Soil Carbon Sequestration: Potential for Agricultural Inoculants in Climate Change Mitigation
(Peer reviewed; Journal article, 2024-11-16)Agricultural soil has great potential to address climate change issues, particularly the rise in atmospheric CO2 levels. It offers effective remedies, such as increasing soil carbon content while lowering atmospheric carbon ... -
An update of sweet potato viral disease incidence and spread in Ethiopia
(Peer reviewed; Journal article, 2020-08-31)Sweet potato (Ipomoea batatas (L.) Lam.) is an important root crop for poor farmers in developing countries. Since the late 1980s, viral diseases have increasingly become a threat to sweet potato production in Ethiopia. ... -
Urban Water Retention Measures
(Journal article; Peer reviewed, 2017-06-02)Many cities and urban areas are located in flood plains because land is fertile and flat which is suitable for agriculture and urban development. Rivers provide water supply for domestic, industrial and irrigation uses; ... -
Use of Copper-Based Fungicides in Organic Agriculture in Twelve European Countries
(Peer reviewed; Journal article, 2022-03-10)The reduction of copper-based plant-protection products with the final aim of phasing out has a high priority in European policy, as well as in organic agriculture. Our survey aims at providing an overview of the current ... -
The use of interval censored data to assess the timing of early field infestation of fall armyworm, Spodoptera frugiperda (J. E. Smith) (Lepidoptera, Noctuidae) in maize fields
(Peer reviewed; Journal article, 2024-07-18)The fall armyworm, Spodoptera frugiperda, situation in Africa remains a priority threat despite significant efforts made since the first outbreaks in 2016 to control the pest and thereby reduce yield losses. Field surveys ... -
Use of models in large-area forest surveys: comparing model-assisted, model-based and hybrid estimation
(Journal article; Peer reviewed, 2016)This paper focuses on the use of models for increasing the precision of estimators in large-area forest surveys. It is motivated by the increasing availability of remotely sensed data, which facilitates the development of ... -
Use of UAV photogrammetric data for estimation of biophysical properties in forest stands under regeneration
(Peer reviewed; Journal article, 2019)The objective of this study was to assess the use of unmanned aerial vehicle (UAV) data for modelling tree density and canopy height in young boreal forests stands. The use of UAV data for such tasks can be beneficial ... -
Use of UAV photogrammetric data in forest genetic trials: measuring tree height, growth, and phenology in Norway spruce (Picea abies L. Karst.)
(Peer reviewed; Journal article, 2020) -
The use of volatile organic compounds in preventing and managing invasive plant pests and pathogens
(Peer reviewed; Journal article, 2024-11-28)Invasive pests and plant pathogens pose a significant threat to ecosystems and economies worldwide, prompting the need of anticipatory strategies. Preventing their introduction by detection at the ports of entry has been ... -
Using a Multi-Institutional Ensemble of Watershed Models to Assess Agricultural Conservation Effectiveness in a Future Climate
(Peer reviewed; Journal article, 2022-06-16)This study investigates the combined impacts of climate change and agricultural conservation on the magnitude and uncertainty of nutrient loadings in the Maumee River Watershed, the second-largest watershed of the Laurentian ... -
Using ecological context to interpret spatiotemporal variation in natural selection
(Peer reviewed; Journal article, 2020-11-23)Spatiotemporal variation in natural selection is expected, but difficult to estimate. Pollinator‐mediated selection on floral traits provides a good system for understanding and linking variation in selection to differences ... -
Using laser micro-dissection and qRT-PCR to analyze cell type-specific gene expression in Norway spruce phloem
(Journal article; Peer reviewed, 2014)The tangentially oriented polyphenolic parenchyma (PP) and radially organized ray parenchyma in the phloem are central in the defense of conifer stems against insects and pathogens. Laser micro-dissection enables examination ... -
Using Optical Sensors to Identify Water Deprivation, Nitrogen Shortage, Weed Presence and Fungal Infection in Wheat
(Journal article; Peer reviewed, 2016-05-26)The success of precision agriculture relies largely on our ability to identify how the plants’ growth limiting factors vary in time and space. In the field, several stress factors may occur simultaneously, and it is thus ... -
Using Red List species in designating protection status to forest areas: a case study on the problem of spatio-temporal dynamics
(Peer reviewed; Journal article, 2020-08-12)Red-listed species are often used as target species in selection of sites for conservation. However, limitations to their use have been pointed out, and here we address the problem of expected high spatio-temporal dynamics ... -
Utilisation of chemically modified lampante oil for wood protection
(Journal article; Peer reviewed, 2018-07-27)Within the Slovenian region of Istria, the olive growing and oil production industry is strong. This industry has a long history and the olives grown here have high levels of biologically active compounds including a variety ... -
Validation of risk models for control of leaf blotch diseases in wheat in the Nordic and Baltic countries
(Peer reviewed; Journal article, 2020-05-30)Risk models for decisions on fungicide use based on weather data, disease monitoring, and control thresholds are used as important elements in a sustainable cropping system. The need for control of leaf blotch diseases in ...