Cannabis pollen dispersal across the United States
Abstract For the recently legalized US hemp industry (Cannabis sativa), cross-pollination between neighboring fields has become a significant challenge, leading to contaminated seeds, reduced oil yields, and in some cases, mandated crop destruction. As a step towards assessing hemp cross-pollination...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-024-70633-x |
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| _version_ | 1850197197910441984 |
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| author | Manu Nimmala Shane D. Ross Hosein Foroutan |
| author_facet | Manu Nimmala Shane D. Ross Hosein Foroutan |
| author_sort | Manu Nimmala |
| collection | DOAJ |
| description | Abstract For the recently legalized US hemp industry (Cannabis sativa), cross-pollination between neighboring fields has become a significant challenge, leading to contaminated seeds, reduced oil yields, and in some cases, mandated crop destruction. As a step towards assessing hemp cross-pollination risk, this study characterizes the seasonal and spatial patterns in windborne hemp pollen dispersal spanning the conterminous United States (CONUS). By leveraging meteorological data obtained through mesoscale model simulations, we have driven Lagrangian Stochastic models to simulate wind-borne hemp pollen dispersion across CONUS on a county-by-county basis for five months from July to November, encompassing the potential flowering season for industrial hemp. Our findings reveal that pollen deposition rates escalate from summer to autumn due to the reduction in convective activity during daytime and the increase in wind shear at night as the season progresses. We find diurnal variations in pollen dispersion: nighttime conditions favor deposition in proximity to the source, while daytime conditions facilitate broader dispersal albeit with reduced deposition rates. These shifting weather patterns give rise to specific regions of CONUS more vulnerable to hemp cross-pollination. |
| format | Article |
| id | doaj-art-4609d57b61b34cc585c98c2d56c5deed |
| institution | OA Journals |
| issn | 2045-2322 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-4609d57b61b34cc585c98c2d56c5deed2025-08-20T02:13:14ZengNature PortfolioScientific Reports2045-23222024-09-0114111110.1038/s41598-024-70633-xCannabis pollen dispersal across the United StatesManu Nimmala0Shane D. Ross1Hosein Foroutan2Engineering Science and Mechanics, Virginia TechAerospace and Ocean Engineering, Virginia TechCivil and Environmental Engineering, Virginia TechAbstract For the recently legalized US hemp industry (Cannabis sativa), cross-pollination between neighboring fields has become a significant challenge, leading to contaminated seeds, reduced oil yields, and in some cases, mandated crop destruction. As a step towards assessing hemp cross-pollination risk, this study characterizes the seasonal and spatial patterns in windborne hemp pollen dispersal spanning the conterminous United States (CONUS). By leveraging meteorological data obtained through mesoscale model simulations, we have driven Lagrangian Stochastic models to simulate wind-borne hemp pollen dispersion across CONUS on a county-by-county basis for five months from July to November, encompassing the potential flowering season for industrial hemp. Our findings reveal that pollen deposition rates escalate from summer to autumn due to the reduction in convective activity during daytime and the increase in wind shear at night as the season progresses. We find diurnal variations in pollen dispersion: nighttime conditions favor deposition in proximity to the source, while daytime conditions facilitate broader dispersal albeit with reduced deposition rates. These shifting weather patterns give rise to specific regions of CONUS more vulnerable to hemp cross-pollination.https://doi.org/10.1038/s41598-024-70633-x |
| spellingShingle | Manu Nimmala Shane D. Ross Hosein Foroutan Cannabis pollen dispersal across the United States Scientific Reports |
| title | Cannabis pollen dispersal across the United States |
| title_full | Cannabis pollen dispersal across the United States |
| title_fullStr | Cannabis pollen dispersal across the United States |
| title_full_unstemmed | Cannabis pollen dispersal across the United States |
| title_short | Cannabis pollen dispersal across the United States |
| title_sort | cannabis pollen dispersal across the united states |
| url | https://doi.org/10.1038/s41598-024-70633-x |
| work_keys_str_mv | AT manunimmala cannabispollendispersalacrosstheunitedstates AT shanedross cannabispollendispersalacrosstheunitedstates AT hoseinforoutan cannabispollendispersalacrosstheunitedstates |