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Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

2024

Abstract

The Climate Laboratory in Tromsø offers excellent facilities for controlled growth experiments. In an attempt to provide for future needs to perform qualitative and quantitative analysis of plant growth and plant traits at the laboratory scale, UiT and NIBIO have jointly implemented state-of-the-art monitoring and imaging systems as part of the strategic project ABSORB (https://site.uit.no/absorb/). Here, we present a 3D multi- and 2D hyper-spectral imaging platform, augmented with thermal analysis capabilities, tailored for plant phenotyping in both research and teaching contexts. The 3D imaging component of the PlantEye F600 laser scanner provides effortless and accurate non-invasive assessments of plant architecture and growth dynamics. Three complementary 2D hyperspectral cameras deliver more detailed spectral information across a 400-1700 nm range of wavelengths, supporting in-depth analysis of biochemical composition and stress responses at the macro- and micro-scales. We showcase the platform's versatility through two compelling experiments investigating drought-stress and light-inhibition, respectively. In the drought-stress experiment, we observed plant responses to water scarcity, tracking physiological changes and morphological adaptations with our integrated imaging system. In the light-inhibition experiment, we further explored the impact of light intensity on plant growth and development. We envision collaborative efforts to address the current challenges in plant biology, agriculture, and environmental science.

2023

Abstract

High yields are needed for profitability under shielded strawberry production. June bearing strawberry cultivars require a short day (SD) period in order to initiate generative growth. Nitrogen availability going into the SD-period, as well as during the period, can affect the process. To increase the knowledge about optimized nitrogen fertilizing, an experiment was set up under controlled conditions. Strawberry plants of the cultivar ‘Sonata’ were grown under combinations of different levels of nitrogen to evaluate its effect on timing on growth, flowering time and the number of flowers produced. The result showed that the time for opening of the first flower, the interaction between the pre-SD nitrogen level and the nitrogen level applied during the SD had the highest impact, and that low levels pre-SD flowered earlier. The number of flowers produced was affected by both pre-SD and SD nitrogen level as well as its interactions. Low nitrogen levels throughout had low yield potential while when low pre-SD nitrogen level was followed by high levels during SD, the yield increased.