1. Current understanding and application of biostimulants in plants: an overview 2. Bio-based nanomaterials and their role as biostimulants in plants growth, metabolic profile performance and productions 3. Bio-based nanomaterials and their interaction with plant growth-promoting rhizobacteria /blue-green algae/Rhizobium for sustainable plants growth and development 4. Role of protein Hydrolysates (APR®) in plants growth and development 5. Use of paramylon in plants growth and productions 6. Leonardite-Humate and lignosulfonate-based products for plants growth and productions 7. Use of melatonin in plants growth and productions 8. Use of amino acids in growth, photosynthetic assimilation and nutrient availability of plants 9. Use of seaweed extract-based biostimulants in plant growth, biochemical constituents and productions 10. Role of alfalfa brown juice in plants growth and development 11. Use of novel plant probiotic bacterium in metabolic profile performance 12. Application of biostimulant to seed for germination and seedling growth 13. Role of biostimulant in adventitious rooting via stimulation of plant hormones 14. Role of arbuscular mycorrhizal fungi inoculation in modulation of plant yield and bioactive compounds 15. Use of arbuscular mycorrhizal fungi in metabolic profile performance 16. AMF and associated microbiota as plant biostimulants 17. Phyllospheric microbes for higher growth and yield 18. Rhizosphere biology for higher growth and yield 19. Integrated nutrient management for higher growth and yield 20. Biostimulants and their role in plants tolerance to abiotic stress 21. Role of biostimulant in sustainable management of phyto-parasitic nematodes in plants 22. Changes in plant biochemistry and overall yield in response to biostimulants 23. Applications of Trichoderma virens and biopolymer-based biostimulant in plants growth and productions 24. Role of biodegradable mulching films and vegetal-derived biostimulant application for enhancing plants performance and nutritive value 25. Experimental tools used as a biostimulants for higher plant growth 26. Role of endophytes on plant growth and performance