Knowledge Tree
pollination
Facts (22)
Sources
Weighing the risk of cannabis cross-pollination - Hemp Production canr.msu.edu Jul 12, 2019 5 facts
claimBees collect cannabis pollen but are generally not attracted to female cannabis flowers to contribute to pollination.
referenceAccording to Small and Naraine (2016), cannabis is one of the few plant species that can actively increase the number and size of its female sex organs in response to prolonged virginity (lack of pollination).
measurementA study by Meier and Mediavilla (1998) found that pollination decreased the yield of essential oils in cannabis flowers by 56%.
claimFiber hemp production does not require pollination, but fiber fields typically include male plants because the cost of planting feminized seed or female clones is prohibitively high.
claimThe amount of cannabis pollen transported decreases logarithmically with increasing distance from the source, making the risk of pollination negligible beyond ten miles.
Industry-Based Misconceptions Regarding Cross-Pollination of ... frontiersin.org Jan 25, 2022 4 facts
claimThe effects of genetic material exchange via pollination manifest in the offspring generation resulting from the seed, rather than in the parent plant.
referencePollination in plants causes a shift in secondary metabolites, where energy is redirected toward seed production rather than the production of specific compounds, according to Flores-Sanchez and Verpoorte (2008).
claimCannabis plants typically produce secondary metabolites in response to abiotic and biotic stressors, but pollination shifts energy focus to seed production rather than cannabinoid production.
claimPollination is a biological process by which plants increase genetic diversity within their species.
How does the Moon affect life on Earth? | Natural History Museum nhm.ac.uk 2 facts
claimEphedra foeminea produces droplets of fluid on its cones in bright moonlight, which sparkle under the polarising light of the Moon to attract beetles and other nocturnal insects for pollination.
claimEphedra foeminea, also known as the joint pine or Mormon tea, is a gymnosperm that relies on insects for pollination.
Unknown source 2 facts
procedureIn the 1970s, marijuana growers developed a procedure to prevent pollination by rogueing out male plants or by producing only female plants through clonal propagation.
claimFarmers growing hemp for fiber and oilseed production can mix male and female plants because the plants are harvested before pollination becomes a significant issue for the crop's intended use.
Lunar effect - Wikipedia en.wikipedia.org 2 facts
referenceThere is insufficient evidence to support the purported lunar effect on pollination in the gymnosperm Ephedra, according to a 2015 study by J.L. Margot published in the Journal of Biological Rhythms.
claimSerious doubts have been raised regarding the claim that a species of Ephedra synchronizes its pollination peak to the full moon in July.
Hemp vs. marijuana: Cross-pollination concerns grow | Verisk verisk.com 1 fact
accountA seed company in Oregon is pursuing a lawsuit against nearby hemp growers, accusing them of negligence, nuisance, and trespass due to pollination from a mixed crop of male and female plants.
The ecology of electricity and electroreception - Wiley Online Library onlinelibrary.wiley.com Oct 12, 2021 1 fact
referenceThe paper 'The ecology of electricity and electroreception' assesses the role that electricity plays in the natural ecology of predator–prey interactions, pollination, and animal dispersal.
Un/Making Pollination – Feminist Methods for Creating Ecosocial ... tandfonline.com 1 fact
claimThe article "Un/Making Pollination – Feminist Methods for Creating Ecosocial Futures" explores approaches to creating more liveable feminist futures through the building of relationships across species.
Ecology: Nature's Interactions and Ecosystem Dynamics scholarsresearchlibrary.com 1 fact
claimA diverse community of organisms ensures an ecosystem has multiple pathways to support essential functions such as pollination, seed dispersal, and nutrient recycling.
5.9.1: Kingdom Plantae - Evolution and Phylogeny bio.libretexts.org Nov 24, 2025 1 fact
claimThe function of the flower in angiosperms is to facilitate pollination for gene mixing and to provide protection for the ovule and developing embryo inside a receptacle.
An integrated climate-biodiversity framework to improve planning ... ecologyandsociety.org 1 fact
referenceOutcomes associated with land-use and biodiversity strategies include air quality improvement, carbon sequestration and storage, flood protection, improved farm productivity/longevity, support for insectivores, land efficiency, local temperature regulation, maintenance requirements, pest management, pollination, reduced erosion, reduced imports, reduced fertilizer use, reduced run-off/stormwater management, reduced traffic, space for public parks, tree plantation, urban noise reduction, walkability, water conservation, water quality improvement, and water retention/flow regulation.
A critical review of industrial fiber hemp anatomy, agronomic ... bioresources.cnr.ncsu.edu 1 fact
procedureTo optimize industrial hemp output as a grain crop, growers should use a predominantly female population with a few male plants for pollination, or utilize a monoecious variety, as noted by Schluttenhofer and Yuan (2017).