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Common Abiotic Issues for Cannabis Plants

Common Abiotic Issues for Cannabis Plants Professor DeBacco General Abiotic Characteristics Typically symptoms appear suddenly A uniform pattern can be observed Not common to be only a single plant If you are growing more than one variety it is possible for there to be distinctive difference between the varieties. Lesions tend to have distinct lines of impact and not impacted tissue. Abiotic Stresses Abiotic stresses lead to secondary stresses in the plant. It is this that results in the damage to the plant that can be seen. Shoot Related Abiotic Stresses Heat- Can come from light (artificial or even the sun) Cold- Of particular concern early and late in outdoor growing, for indoor grows watch the lights off temperature. Root Zone Abiotic Stresses Nutrient- Often times growers will over feed their plants leading to nutrient toxicity. Heavy Metals- This is tested in final plant material so be sure to know your substrate and inputs. Salinity- This can happen with chemical or organic fertilizers so be watchful of this and flushing plants is advised to reduce the salt concentration if it does get to the level of causing plant stress Drought- Sometimes this is not intentional, so be sure to check on each plant to ensure the irrigation system you are using is functional. Flooding- Can be caused by damage in an irrigation line or simply overwatering plants, so be sure to get a “feel” for the substrate. Link to Lecture Slides: https://drive.google.com/file/d/18nqv... *Due to the description character limit the full work cited for "Common Abiotic Issues for Cannabis Plants" can be viewed at... https://drive.google.com/file/d/15adK...