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Plants may use trichomes in order to deter herbivore attacks via physical and/or chemical means, e.g. in specialized, stinging hairs of Urtica (Nettle) species that deliver inflammatory chemicals such as histamine. Studies on trichomes have been focused towards crop protection, which is the result of deterring herbivores (Brookes et al. 2016). [24]
Tricholoma equestre was known to Linnaeus who officially described it in Volume Two of his Species Plantarum in 1753, giving it the name Agaricus equestris, [2] predating a description of Agaricus flavovirens by Persoon in 1793.
When trichomes are undeveloped they are completely clear. They turn white/cloudy which is when trichomes have max levels of cannabinoids. Eventually trichomes start turning amber/purple/red, which is when cannabinoid content has started to degrade. Harvesting before most trichomes have turned white may reduce the overall potency and efficacy time.
Structure of a stinging hair of Urtica dioica. Stiff hairs or trichomes without the ability to inject irritating compounds occur on the leaves and stems of many plants. They appear to deter feeding insects to some degree by impeding movement and restricting access to the surface of the stem or leaf.
To harvest, the entire plant is cut down, the leaves are stripped from the plant, and everything is left to dry. When the fruits begin to burst open, the seeds are harvested. For intensive plantations, leaf yields of 1,100 to 1,700 kilograms per hectare (1,000 to 1,500 lb/acre) and seed yields of 780 kg/ha (700 lb/acre) are possible.
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