Effect of the application of biostimulants at cotton
DOI:
https://doi.org/10.61308/YHQU1257Keywords:
cotton; biostimulants; yieldAbstract
During the period 2020–2023, a field trial was conducted at the experimental field of the Field Crops Institute – Chirpan with cotton variety Viki IPTP. The crop was grown under rainfed conditions following standard agronomic practices. Five biostimulants were tested, applied at the mass flowering stage at a rate of 300 ml/da. The applied biostimulants had a positive effect on seed cotton yield, boll number, and boll weight. The highest efficacy was observed with biostimulants PGA1 and NOX10, which resulted in an average yield increase of 15.3% and 11.8%, respectively, compared to the control. The tested biostimulants did not significantly increase boll weight, but showed a proven positive effect on the number of bolls per plant, which is a key factor contributing to the increased productivity.
References
Abdullaev, F., Abdualimov, S., & Karimov, S. (2023). Scientific Basis of Use of Humin-Based Stimulants in Cotton. In BIO Web of Conferences (Vol. 78, p. 05006). EDP Sciences.
Anbukkarasi, V., Prabu, M., Paramaguru, P., Pugalendhi, L., & Jeyakumar, P. (2018). Effect of nutrients and biostimulants on growth, yield and quality of Tomato (Solanum lycopersicon). International Journal of Current Microbiology and Applied Sciences, Sp. Issue, 6, 49-55.
Cavalcante, W. S., Silva, N. F., Teixeira, M. B., CabraL, F., Nascimento, P. E. R. & Corrêa, F. R. (2020). Efficiency of bioestimulants in the management of water deficit in soybean culture. IRRIGA, 25(4), 754-763.
Di Sario, L., Boeri, P., Matus, J. T., & Pizzio, G. A. (2025). Plant biostimulants to enhance abiotic stress resilience in crops. International Journal of Molecular Sciences, 26(3), 1129.
Hasddin, Ulyasniati, J., Mukaddas, Marjani, Mirad, M. Kan, A. M. Ega & Afa, M. (2025). Sustainable agriculture: the role of biostimulants in enhancing crop growth and resilience. Journal of Global Innovations in Agricultural Sciences 13(2), 561-573. https://www.jgiass.com/pdf-reader.php?file=Sustainable-Agriculture:-The-Role-of-Biostimulants-in-Enhancing-Crop-Growth--and-Resilience.pdf&path=issue_papers
Koleva, M. (2007). Influence of new biologically active substances on the growth, development and yield of cotton. 2. Effect of growth promoters applied in 5-6 cotton-foliar phase. International Scientific Conference, Stara Zagora”, June 6-7, 2007, Vol. 1 Plant Breeding, рр. 90-94 (Bg).
Koleva, M. (2009). Effect of application of biological active substances on the yield of cotton. International Scientific Conference, Stara Zagora”, June 4-5, 2009, Vol. 1 Agricultural science. Plant studies, 418 – 422 (Bg).
Koleva, M. (2016). Effect of natural organic products on productivity on cotton. Science & Technologies, Agrobiological science, 6(6), 60-64 (Bg). http://www.sustz.com/journal/7/1477.pdf
Kumaraswamy, S., & Shetty, P. K. (2016). Critical abiotic factors affecting implementation of technological innovations in rice and wheat production: A review. Agricultural reviews, 37(4), 268-278.
Kuramatova, S. A., & Ibragimova, D. Q. (2024). The effect of biostimulants on cotton yield: research results and applications. The American Journal of Agriculture and Biomedical Engineering, 6(12), 18-21.
Pettigrew, W. T., & Johnson, J. T. (2005). Effects of different seeding rates and plant growth regulators on early-planted cotton. Journal of Cotton Science, 9(2), 189–198.
Privantu, A. E., Olaru, A. L., Murtaza, D. F. & Dobre, S. C. (2023). Biostimulants and their role in the development of maize crops. Annals of the University of Craiova - Agriculture, 53(1), 237-247.
Rademacher, W. (2015). Plant growth regulators: backgrounds and uses in plant production. Journal of Plant Growth Regulation, 34(4), 845-872.
Radzikowska-Kujawska, D., John, P., Piechota, T., Nowicki, M., & Kowalczewski, P. Ł. (2023). Response of Winter Wheat (Triticum aestivum L.) to Selected Biostimulants under Drought Conditions. Agriculture, 13(1), 121 р. https://doi.org/10.3390/agriculture13010121
Sarfraz, S., Ali, F., Hameed, A., Ahmad, Z., & Riaz, K. (2023). Sustainable agriculture through technological innovations. In Sustainable agriculture in the era of the OMICs revolution (pp. 223-239). Cham: Springer International Publishing.
Sawan, Z. M., Mohamed, A. A., Sakr, R. A., & Tarrad, A. M. (2000). Effect of kinetin concentration and methods of application on seed germination, yield components, yield and fiber properties of the Egyptian cotton (Gossypium barbadense). Environmental and experimental botany, 44(1), 59-68.
Sayimbetov, A. & Aleuova, A. T. (2023). The importance of using biostimulators in growing high yield of cotton. EPRA International Journal of Agriculture and Rural Economic Research (ARER), 11(10), 8-10.
Tariq, M., Hussain, F. & Khan, S. (2017). Effects of amino acids and biostimulants on the growth and yield of cotton. Agricultural Sciences, 8(9), 1179-1187.
Xamidov, M., & Saylixanova, M. (2024). The effect of biostimulants on cotton yield. Science and innovation in the education system, 3(13), 136–140. https://doi.org/10.5281/zenodo.14221582
Xie Zhang-Shu, Xie Xue-Fang, Tu Xiao-Ju, Liu Ai-Yu, Dong He-Zhong, & Zhou Zhong-Hua.(2025). Research progress in phytohormone regulation of square and boll shedding in cotton. Acta Agronomica Sinica, 51(1), 1-29.
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