Been a while IC, hope everyone is as safe as safe can be under the current circumstances.
Oregon CBD Announces Triploid Varin-Rich Varieties
It’s late July and, if you followed our sowing and planting recommendations, crops of Oregon CBD varieties are going into flower across the country. This is a critical time in the field for farmers, who are filled with both excitement and nervous trepidation. Now is the time to be walking fields on the lookout for those rare (1/4000), but fully male phenotypes that can pollinate your crop and decimate returns.
As experienced cannabis farmers know, the threat of cross-pollination poses one of the most severe risks to a successful season. Having a crop pollinated is a severe hit for biomass farmers (loss of 50% of usable material and 30% reduction in average cannabinoid content) and catastrophic for anyone in the trimmed flower business (total loss). What if farmers never had to worry about pollination events again?
The team of scientists at Oregon CBD have made this dream a reality for 2021. Following in the footsteps of plant breeders in other crops (watermelon, banana, hops, grapes, citrus, etc.), we’re proud to introduce SEEDLESS cannabis varieties for 2021.
These Non-GMO triploid varieties are made possible through advanced ploidy screening.
• Infertile flowers
Your flowers will not be seeded by neighbors or by any rogue pollen generated on your farm
• Non-viable pollen
Any pollen that may escape your farm will NOT pollinate your neighbors
• Reduced costs
Hiring crews to rogue “males” is no longer necessary
• Increased yields
Up to 100% in some hop cultivars
• Increased aromatic content and complexity
30%-50% increase in terpene content in hops
• More efficient use of inputs
Increased copy number of key genes leads to hyper-efficient plants
• Fully compliant at day of harvest for total THC
Total THC fraction is cut in half over previous type III plants with THCVA in its place
• Rich in novel cannabinoids (CBDV, CBGV, and CBCV)
35%-65% of the total fraction are high value propyl cannabinoids
• Photoperiod sensitive and day neutral autoflower varieties
Allow for staggered harvests or September finishing times
• Attained through traditional breeding
Awaiting inspection, Non-GMO Project and Oregon Tilth
How is this possible?
It’s all mathematics. In this case, 2n + 4n = 3n.
Cannabis in the wild is almost exclusively a diploid (2n) species. In diploids, every plant receives one set of chromosomes from each parent. Though rare, spontaneous mutations can occur that result in a doubling of the diploid genomes and lead to tetraploid (4n) individuals even in controlled breeding populations.
Dr. Hsuan Chen and Brendan Rojas, research plant breeders at Oregon CBD, designed a series of experiments to treat diploid cannabis tissue with compounds known to inhibit cell division. The process approximates the tetraploid-inducing events that occur in nature at a very low rate, but does so (now, after many experiments) in a more consistent manner. Treated plants must be screened using a flow cytometer--a device that can measure the physical size of a plant genome--and compared to their diploid counterparts to detect the desired doubling of genome size. Success results in tetraploids: plants with four sets of homologous chromosomes (4n) and an identical doubled version of the mother. This screening process is repeated a number of times in subsequent generations of cuttings to prevent reversion to the diploid state.
Tetraploid cannabis plants have been described by two other research groups (Mansouri and Bagheri 2017 and Parsons et al. 2019) and their findings mirror ours; distinct morphological changes and increased nutrient consumption are apparent, but chemical composition (ratios and total amounts produced) is relatively unchanged--albeit with a marked increase in aromatic compounds. So far, evidence suggests that tetraploids offer little if any performance increase over diploids, with the exception of louder olfactory notes.
The game-changer for farmers happens when tetraploids (4n) are crossed with diploids (2n); the resulting seed carries 2 copies of chromosomes from the tetraploid parent and 1 set from the diploid parent (3n). This traditional plant breeding process is well documented and has been used to improve many other crops, particularly those where seedless characteristics, essential oil production, and increased biomass are valuable agronomic traits. We are able to offer this revolutionary advancement through ploidy improvements of our newly developed, varin-rich total THC compliant hemp varieties--making for one of the most significant single-year advancements in the history of modern cannabis breeding.