Abiotic stress due to salt stress is simulated in pots by defined watering. LemnaTec watering systems can be used to expose plants to waterlogging as a very specific type of abiotic stress

Abiotic Stress

The term abiotic stress describes all kinds of environmental influences that may stress plants and thus reduce yield or growth, in comparison to optimum growth conditions. It is an important aim of many breeding programmes to create increasingly stress tolerant plants. For a better understanding of how plants are able to deal with abiotic stress, it is important to impose abiotic stress on the plants in a very precise and quantitatively graded way. LemnaTec Scanalyzer3D systems with moving field conveyor systems can assist in this task by imposing the following stressors on individual plants or groups of plants:

Abiotic stress assessment using LemnaTec scanalyzer technologies:

  • Salt stress (precise watering with a combination of water and defined salt solutions, using the LemnaTec watering and weighing module + quantifying e.g. chlorosis by visible light colour imaging)
  • Drought stress (adding defined amounts of water, using the LemnaTec watering and weighing module + NIR water imaging of soil and shoots)
  • Nutrient stress ( adding nutrients in defined concentrations as excess solution to keep the nutrient level on a defined level, using the LemnaTec watering and weighing module + quantifying e.g. nitrogen deficits by visible light green colour imaging)
  • Harmful mineral stress, e.g. with Boron present in the soil (adding boron to the soil, using the LemnaTec watering and weighing module + washing boron excretions off the leaves in the LemnaTec spraying unit + quantifying e.g. leaf tip burning by visible light imaging)
  • Waterlogging (adding excess water to and removing it from pots, using the LemnaTec watering and weighing module)
  • Heat or UV light stress (randomising the plants in high intensity irradiation fields with LemnaTec scanalyzer moving field conveyor systems, in order to homogenise these difficult to handle energy fields)