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Sökning: WFRF:(Chiatante Donato)

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  • Montagnoli, Antonio, et al. (författare)
  • Non-destructive phenotypic analysis of early stage tree seedling growth using an automated stereovision imaging method
  • 2016
  • Ingår i: Frontiers in Plant Science. - : Frontiers Media SA. - 1664-462X. ; 7
  • Tidskriftsartikel (refereegranskat)abstract
    • A plant phenotyping approach was applied to evaluate growth rate of containerized tree seedlings during the precultivation phase following seed germination. A simple and affordable stereo optical system was used to collect stereoscopic red-green-blue (RGB) images of seedlings at regular intervals of time. Comparative analysis of these images by means of a newly developed software enabled us to calculate (a) the increments of seedlings height and (b) the percentage greenness of seedling leaves. Comparison of these parameters with destructive biomass measurements showed that the height traits can be used to estimate seedling growth for needle-leaved plant species whereas the greenness trait can be used for broad-leaved plant species. Despite the need to adjust for plant type, growth stage and light conditions this new, cheap, rapid, and sustainable phenotyping approach can be used to study large-scale phenome variations due to genome variability and interaction with environmental factors.
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  • Rusu, Cristina, et al. (författare)
  • Miniaturized wireless water content and conductivity soil sensor system
  • 2019
  • Ingår i: Computers and Electronics in Agriculture. - : Elsevier B.V.. - 0168-1699 .- 1872-7107. ; 167
  • Tidskriftsartikel (refereegranskat)abstract
    • Obtaining more data for the research/studies of plants growing may be easier realized when suitable non-destructive detection methods are available. We are here presenting the development of a miniaturised, low-power, real-time, multi-parameter and cost-effective sensor for measurements in mini plugs (growth of seedling). The detection technique is based on measurement of electrical impedance at two frequencies for sensing two soil parameters, water content and water conductivity (dependent on e.g. total ions concentration). Electrical models were developed and comply with data at two frequencies. An easy and efficient calibration method for the sensor is established by using known liquids’ properties instead of various soil types. The measurements show a good correlation between the sensor's readings and the traditional soil testing. This soil sensor can easily send data wirelessly allowing for spot checks of substrate moisture levels throughout a greenhouse/field, and/or enable sensors to be buried inside the soil/substrate for long-term consecutive measurements.
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