Evaluation of industrial hemp cultivars for CBD production in 2018

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Authors

Chris Smart, Larry Smart, Jamie Crawford, Rebecca Wilk, Ali Cala, George Stack, Don Viands, and Joss Rose


Chemical diagram showing the synthesis of THC and CBD from cannabigerolic acid

Production of cannabinoids

Cannabidiol (CBD) is becoming very popular as a supplement for the relief of seizures, pain, and anxiety. It is made in trichomes of female flowers as a biochemical alternative to THC.

Locations and production methods

We are testing cultivars in two small plot trials on Cornell research farms in Geneva and Ithaca and also a subset of 7 cultivars in a greenhouse. Plants were established from seed in 4” pots on June 7, then were transplanted to raised beds with plastic mulch and drip irrigation on July 6 (Ithaca) and July 9 (Geneva). Males are being actively removed as they flower.

Graph showing preliminary results from our 2018 CBD trials. The graph shows an inverse relationship between number of branching nodes and plant height.

Flowering time and plant architecture

Some lines have autoflowered – they are daylength insensitive. Others started flowering in early August, while ‘Otto II’ has still not flowered. We are assessing height vs. branching as a measure of plant architecture.

Harvest yield and quality assessment

We will harvest whole plants and air dry them in a greenhouse. Cannabinoids will be analyzed from flower buds and from whole plants for each plant to determine regulatory levels and whole plant yields, and compare field with greenhouse production for a subset of cultivars.

Cultivars/lines in our 2018 trials

Cultivar/Line Company source Breeder/Provider
UltraRich CBD#1 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#2 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#3 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#4 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#5 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#6 Ultra Rich CBD, Las Vegas, NV Hector Abrica
UltraRich CBD#7 Ultra Rich CBD, Las Vegas, NV Hector Abrica
AC/DC Winterfox Farms, Eagle Point, OR Edgar Winters
Otto II Winterfox Farms, Eagle Point, OR Edgar Winters
Wild Horse Winterfox Farms, Eagle Point, OR Edgar Winters
A2-R4 Winterfox Farms, Eagle Point, OR Edgar Winters
RNF JDMI Limited, Talent, OR Eric Cerecedes
Cherry JDMI Limited, Talent, OR Eric Cerecedes
Futura 75 AssoCanapa via Schiavi Seeds FNPC, LeMans, France
Felina 32 AssoCanapa via Schiavi Seeds FNPC, LeMans, France

Additional cultivars/lines being grown in NYS in 2018

Cultivar/Line Company source
Boax Centennial Seeds, CO
Cascade, Suver Haze, Hawaiian Haze, Lifter, Electra, Special Sauce, Sour Space Candy, Pine Berry Oregon CBD, OR
Oregon Bush, Cascade OG, #5, T-1 Not disclosed
RN-13A GoFarmHemp, OR
Cherry Wine, Cherry Blossom, Trump Not disclosed
Double Cherries, Magic Bullet, AC/DC x Otto II Not disclosed

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