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Luis Monserrate, Alexander Wares, Zachary Zander, Jamie Crawford, Stephen Snyder, Ginny Moore, Joss Rose, and Larry Smart
- The main objective of the trials is to evaluate cultivar performance and obtain retted straw to compare harvested fiber quality among cultivars.
- Swelling of the stem base as damage from exposure to pendimethalin (active ingredient of a pre-emergent herbicide).
2021 Fiber strip trial – Results
- Cultivars ‘PuMa’, ‘BaMa’, and ‘YuMa’ yielded the greatest dry retted straw (Fig.1) with an estimated bast production between 2 to 4 Mg ha-1 (Table 1).
- Yield of straw by a cultivar does not directly reflect yield of bast since percentage of bast content varies by cultivar (Fig.1 and 2).
- Total THC concentration of only ‘YuMa’, and ‘JinMa’ was greater than 0.3% (Table 2).
Table 1. Estimated production of bast per unit area in Geneva, NY in 2021.
| Cultivar | Bast (Mg ha-1) |
| PuMa | 4.12 |
| BaMa | 3.75 |
| YuMa | 1.96 |
| Bialobrzeskie | 0.83 |
Table 2. Quantification of cannabinoids at harvest for 13 of the 15 cultivars evaluated in Geneva, NY in 2021. Numbers in bold indicate samples exceeded the legal limit of 0.3% THC.
| Cultivar | Total Potential THC (%) | Total Potential CBD (%) | CBD:THC ratio |
| YuMa | 0.79 | 0.90 | 1.14 |
| JinMa | 0.59 | 0.23 | 0.39 |
| PuMa | 0.28 | 1.04 | 3.73 |
| Carmagnola | 0.16 | 2.25 | 13.64 |
| Tygra | 0.12 | 2.01 | 17.36 |
| BaMa | 0.09 | 0.94 | 10.40 |
| Helena | 0.07 | 1.41 | 19.37 |
| Selezionata | 0.07 | 1.48 | 22.06 |
| Wojko | 0.06 | 1.51 | 25.73 |
| USO-31 | 0.03 | 0.57 | 17.51 |
| Hlukhivs’ki 51 (H-51) | 0.00 | 0.01 | – |
| Hlessia | 0.00 | 0.00 | – |
| Hliana | 0.00 | 0.00 | – |
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