Simulating Biotic Stress with Terbacil on Apple

Hyperspectral indices to diagnose leaf biotic stress of apple plants, considering leaf phenology

Novel and existing hyperspectral vegetation indices were evaluated in this study, with the aim of assessing their utility for accurate tracking of leaf spectral changes due to differences in biophysical indicators caused by apple scab. Novel indices were extracted from spectral profiles by means of narrow-waveband ratioing of all possible two-band combinations between 350 nm and 2500 nm at nano...

Detection of Biotic Stress (venturia Inaequalis) in Apple Trees Using Hyperspectral Analysis

The potential yield of (capital)-intensive multi-annual crops (e.g., fruit) is seldom harvested in reality. A targeted monitoring and modelling of the growth processes in such agricultural production systems could enable an early detection and treatment of production limiting factors, thereby optimising yield. In Belgium, as in all temperate regions, scab stress caused by the ascomycete Venturi...

Abiotic and biotic stress combinations.

Environmental stress conditions such as drought, heat, salinity, cold, or pathogen infection can have a devastating impact on plant growth and yield under field conditions. Nevertheless, the effects of these stresses on plants are typically being studied under controlled growth conditions in the laboratory. The field environment is very different from the controlled conditions used in laborator...

Detection of biotic stress (Venturia inaequalis) in apple trees using hyperspectral data: Non-parametric statistical approaches and physiological implications

The use of hyperspectral approaches for early detection of plant stress caused by Venturia inaequalis (apple scab) was investigated to move towards more efficient and reduced application of pesticides, fertilizers or other crop management treatments in apple orchards. Apple leaves of the resistant cultivar,Rewena and the susceptible cultivar,Braeburn, were artificially inoculated with conidia o...

Biotic/Abiotic Stress-Driven Alzheimer's Disease