Future of Cannabis Cultivation - Part 2 - Achieving Higher Dried-Flower Yields and Consistent Quality

Aug 27, 2026

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Achieving higher dried-flower yields with stable quality, Grodan and F1SeedTech report results from hybrid seed trials in cannabis cultivation. The research links steerable stone wool growing media with F1 hybrid seeds to improve yield while maintaining consistent THC and terpene levels, avoiding extra energy and water inputs. The partnership transfers knowledge through structured trials in North America, including controlled laboratory work, and builds on validated European findings by optimizing conditions for repeatable, scalable licensed production.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages7

Reading Time18 min

AccessFree to download

Achieving Higher Dried-Flower Yields and Consistent Quality

Rooted in science

Cultivation starting from seeds

Transferring knowledge in North America

CRIC Labs research program

Validating and building on previous results

Future of Cannabis Cultivation-Part 2 Achieving Higher Dried-Flower Yields and Consistent Quality: Grodan and F1SeedTech’s Hybrid Seed Trials in Cannabis Cultivation Designed to grow together Part of ROCKWOOL Group Grodan, in ongoing research trials in Canada together with F1SeedTech, has achieved significantly higher yields of dried flowers and maintained stable levels of THC and terpenes, without requiring extra inputs such as energy and water. The new findings will be used by both companies to further enhance their guidelines and advice for licensed cannabis growers in North America and beyond.“Uniformity, predictability, and repeatability are key if growers are to be able to scale up profitably. Our trial data shows that it is possible to achieve this by combining our steerable stone wool growing media with F1 hybrid seeds,” states Grodan’s Frank Janssen, R&D Project Management in Grodan’s Applications & Development department. In the fast-moving cannabis sector, speed and scalability are of the essence. Grodan and F1SeedTech share a commitment to helping licensed growers stay ahead of the rapid advancements.“Some cannabis growers come from a background in the legacy market, so they are looking for help to professionalize and scale up their operation. Other growers have moved into the industry from other crops. They are discovering that cannabis is a whole different ball game, requiring different strategies,” says Chad Rigby, Crop Specialist for Grodan in Canada. Rooted in science In both those cases, Grodan can provide advice and support that is rooted in science thanks to its longstanding expertize in various Controlled Environment Agriculture (CEA) crops.“Meanwhile, we are continuously expanding our knowledge in cannabis and other high-tech crops by conducting research programs with valued and equally experienced partners such as F1SeedTech. The company’s F1 hybrid varieties provide the stability required for truly scientific research and performance testing aimed at high-level optimization,” Janssen adds. Cultivation starting from seeds rather than from cuttings offers a lot of benefits for licensed cannabis growers, according to Maikel de Bresser, Operational Manager at F1SeedTech.“Above all, using the same variety everytime enables them to optimize their growing conditions to achieve uniform and consistent results, especially when using Grodan’s stone wool growing media,” he says. “As a clean and uniform growing medium stone wool provides the optimal basis for stable and repeatable outcomes, because all the plants react in the same way to any changes made to the growing conditions.” In previous trials at Wageningen University & Research (WUR) in the Netherlands, the two companies have demonstrated that Grodan’s stone wool growing media support consistent plant growth and health thanks to precise steerability of the root zone.“The results from such trials enable us both to offer detailed and dependable guidance to our customers on how to maximize the potential of a particular variety in the most efficient way. This ensures the best balance between cultivation costs and final yield,” continues De Bresser. Grodan and F1 hybrid seed trials 2 Transferring knowledge in North America As a next step in their collaborative partnership, the two companies are now conducting a series of research trials at the CRIC Labs research center in Montreal, Canada.“Needless to say, North America is a very significant, mature and regulated cannabis market. Conducting fundamental research at the state-of-the-art CRIC facility helps us to factor in the local product lines and configurations to enhance the practical application of the findings for local growers,” explains Rigby.“Additionally, it strengthens the knowledge transfer in this region. For example, in May 2024, we organised an event atthe research location for customers from Quebec area. Besides presenting the trial results so far, we also invited a numbe

FAQs

What did Grodan and F1SeedTech achieve in their hybrid seed trials?

They achieved significantly higher dried-flower yields while keeping stable levels of THC and terpenes, supported by consistent cultivation conditions.

Why is seed-based cultivation considered beneficial for licensed growers?

Using the same variety repeatedly helps growers optimize conditions and produce more uniform, consistent results, especially with Grodan’s stone wool media.

How will the companies transfer the research findings to North America?

They conduct research trials at CRIC Labs in Montreal and share results with regional customers and external experts, strengthening knowledge transfer and practical application.

What previous European findings are being validated in the current program?

European trials indicated that shortening the cycle can boost gross margin by at least 15%, increase crop cycles per year, and maintain consistently high THC across production batches; the new program validates these insights.

Aug 27, 2026

Upload by Jiven