• Plant biostimulants which include bioactive substances (humic acids, protein
    hydrolysates and seaweed extracts) and microorganisms (mycorrhizal fungi and plant
    growth promoting rhizobacteria of strains belonging to the genera Azospirillum,
    Azotobacter, and Rhizobium spp.) are gaining prominence in agricultural systems
    because of their potential for improving nutrient use efficiency, tolerance to abiotic
    stressors, and crop quality. Highly accurate non-destructive phenotyping techniques
    have attracted the interest of scientists and the biostimulant industry as an efficient
    means for elucidating the mode of biostimulant activity. High-throughput phenotyping
    technologies successfully employed in plant breeding and precision agriculture,
    could prove extremely useful in unraveling biostimulant-mediated modulation of key
    quantitative traits and would also facilitate the screening process for development of
    effective biostimulant products in controlled environments and field conditions. This
    perspective article provides an innovative discussion on how small, medium, and large
    high-throughput phenotyping platforms can accelerate efforts for screening numerous
    biostimulants and understanding their mode of action thanks to pioneering sensor and
    image-based phenotyping techniques. Potentiality and constraints of small-, medium-,
    and large-scale screening platforms are also discussed. Finally, the perspective
    addresses two screening approaches, “lab to field” and “field to lab,” used, respectively,
    by small/medium and large companies for developing novel and effective second
    generation biostimulant products.

  • Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy



    Copyright: published: 14 August 2018 doi: 10.3389/fpls.2018.01197. Copyright © 2018

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