Research Background
Research question: How does using sunflower tea affect the growth of the nutsedge weed?
Hypothesis: After performing this experiment, sunflower tea's effects on nutsedge can be determined.
Allelopathy is a term used to describe the chemical inhibition of the growth of one plant by another. It is emerging as a potential new way to prevent or suppress the growth of weeds without using harmful chemicals. Currently, around 34% of the world's crop yield is lost to the invasion of weeds (Jabran et al., 2015). Tests are being completed with many allelopathic plants to see how their growth can impact the spread of weeds, and one such allelopathic plant is sunflowers. Leaf tissue, stem tissue extracts, and leachates of dried sunflower have all been used to either inhibit various weeds or even stimulate the growth of other plants in some cases (Leather, 1983).
As the population grows in a post-pandemic world, humankind has learned from issues arising in previous years of hardships. Food supplies are precious, and everything possible must be done to ensure our crops can grow effectively without further environmental harm. Far too many naturally grown foods are lost to pests, such as weeds, and the various chemicals used in the growth of plants today are toxic to humans and animals and poison the soil. Allelopathy in agriculture can provide us with the necessary tools to continue our growth as a species by increasing the yields of crop growth while simultaneously preventing further harm to the environment (Cheng et al., 2015).
References
Cheng, F., & Cheng, Z. (2015). Research Progress on the use of Plant Allelopathy in Agriculture and the Physiological and Ecological Mechanisms of Allelopathy. Frontiers in plant science, 6, 1020. https://doi.org/10.3389/fpls.2015.01020
Hickman, D. T., Comont, D., Rasmussen, A., & Birkett, M. A. (2023). Novel and holistic approaches are required to realize allelopathic potential for weed management. Ecology and evolution, 13(4), e10018. https://doi.org/10.1002/ece3.10018
Inderjit, Wardle, D. A., Karban, R. A., & Callaway, R. M. (n.d.). The ecosystem and evolutionary contexts of allelopathy. Science Direct. https://www-sciencedirect-com.ezproxy.pc.maricopa.edu/science/article/pii/S0169534711002394?via%3Dihub
Jabran, K., Mahajan, G., Sardana, V., & Chauhan, B. S. (2015, March 13). Allelopathy for weed control in Agricultural Systems. Crop Protection. https://www-sciencedirect-com.ezproxy.pc.maricopa.edu/science/article/pii/S0261219415000782?via%3Dihub
Leather, G. (1983). Sunflowers (Helianthus annuus) are Allelopathic to Weeds. Weed Science, 31(1), 37-42. doi:10.1017/S004317450006851X
Li, Z. H., Wang, Q., Ruan, X., Pan, C. D., & Jiang, D. A. (2010). Phenolics and plant allelopathy. Molecules (Basel, Switzerland), 15(12), 8933–8952. https://doi.org/10.3390/molecules15128933
Perez de Luque, A., G. Galindo , J. C. G., Macias, F. A., & Jorrin, J. (n.d.). Sunflower sesquiterpene lactone models induce Orobanche cumana seed germination. Science Direct. https://doi-org.ezproxy.pc.maricopa.edu/10.1016/S0031-9422(99)00485-9
Pytlarz, Elżbieta, and Dorota Gala-Czekaj. "Seed Meals from Allelopathic Crops as a Potential Bio-Based Herbicide on Herbicide-Susceptible and -Resistant Biotypes of Wild Oat (Avena fatua L.)." Agronomy, vol. 12, no. 12, Dec. 2022, p. NA. Gale Academic OneFile, link.gale.com/apps/doc/A745142640/AONE?u=mcc_phoe&sid=summon&xid=6a3ebc7d. Accessed 14 Sept. 2023.
"Quantification Of Allelopathic Potential Of Different Crop Residues For The Purple Nutsedge Suppression." Pakistan Journal of Weed Science Research, vol. 16, no. 1, 31 Mar. 2010. Gale Academic OneFile, link.gale.com/apps/doc/A241524612/AONE?u=mcc_phoe&sid=summon&xid=f54117ea. Accessed 14 Sept. 2023.
Werle, I. S., Castro, E., Pucci, C., Soni Chakraborty, B., Broderick, S., & Tseng, T. M. (2022). Identification of Weed-Suppressive Tomato Cultivars for Weed Management. Plants (Basel, Switzerland), 11(3), 411. https://doi.org/10.3390/plants11030411
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