I want to study vegatative propagation by cutting. My plant is parrotia persica.
Did you study on this plant's propagation?
Please say your experience to me.
Please take a look at this useful RG link.
Article Effect of Salicylic Acid on Rooting of Poinsettia (Euphorbia...
The use of salicylic acid resulted in the highest content of rooting and also increased rooting percentages.
Dear Zahra! Salicylic acid (SA) is one of the plant hormones/ growth regulators, that is involved regulation of plant growth and development, and resistance to biotic and abiotic stress. Although it is not a rooting homone like auxins, it may enhance rooting by its indirect effect on plants, which could also vary among different plant species. It can block ethylene biosynthesis and promote rooting. The role of ethylene on rooting could be promoting, suppressive or impartial. Therefore, SA may promote, suppress or have no effect on rooting among different plant species. It might have a synergistic effect on rooting if it is used with auxins. Remember that when SA is self-buffered its pH could be < 4 (3-4) and this could affect its effect. You can dissolve it at high pH (>7) buffer, which might increase it solubility and effectiveness (this is my assumption).
Read the following articles for better understanding and try it.
https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-017-0364-8
https://www.sciencedirect.com/science/article/abs/pii/S098194289880003X
https://link.springer.com/article/10.1007/s13580-015-0038-9
http://www.plantphysiol.org/content/plantphysiol/early/2019/04/29/pp.19.00130.full.pdf
https://pubmed.ncbi.nlm.nih.gov/16666393/
http://www.plantphysiol.org/content/88/3/833
https://link.springer.com/chapter/10.1007/978-3-540-32846-9_4
I haven´t worked with Salicylic acid, but there are another hormones like IBA, ANA and other, which work very well in woody plants in doses of 2000 to 4000 ppm.
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