Researcher Uses LED Lighting to “Fool” Hops to Skip Dormancy and Bloom

By using LED lighting system, a researcher successfully speeds up the production cycle of hops and tricks them to flower without dormancy.

Bill Bauerle, professor in the Department of Horticulture and Landscape Architecture at Colorado State University (CSU), has spent years in the horticultural research center of the university to optimize hops cultivation. With the support of horticulture LED lighting system, Bauerie opens up new possibilities for indoor, sustainable, local production of hops


(Image: Colorado State University)

Hops are almost exclusively grown outdoors and are harvested once per year. It has long been thought that the plants require a low-temperature dormancy period for them to reset under cold winter conditions in order to flower prolifically. Hops also require relatively long periods of daylight. These conditions make hops grow nearly exclusively in the Pacific Northwest area in North America.

Bauerle used the LED lights to speed up production while also bathing his plants in assigned "photoperiods" - the daily duration of light that the plants harvest for energy.


(Image: Colorado State University)

"We fooled our hops into thinking it was the middle of summer in British Columbia, or somewhere else with an appropriate day length," Bauerle said, "so we could grow them all year round."

By precisely controlling the lighting periods of his plants, Bauerle studied the extent to which the dormancy period was indeed a necessary component for healthy hop flowers. His results indicate that hops do not require the dormant vernalization period that was previously assumed essential. In other words, with ideal lighting conditions, hops can grow everywhere, opening up opportunities for local brewers to grow or buy local hops.

The study was published in Scientific Report, titled “Disentangling photoperiod from hop vernalization and dormancy for global production and speed breeding,” in November 2019.

Bauerle has turned his attention to research in other hydroponically grown, industrial crops, including hemp, which is in the same family as hops but has a fibrous, annual root system rather than a rhizome. He is hoping to conduct related experiments on the ideal photoperiods for hemp plants.

Disclaimers of Warranties
1. The website does not warrant the following:
1.1 The services from the website meets your requirement;
1.2 The accuracy, completeness, or timeliness of the service;
1.3 The accuracy, reliability of conclusions drawn from using the service;
1.4 The accuracy, completeness, or timeliness, or security of any information that you download from the website
2. The services provided by the website is intended for your reference only. The website shall be not be responsible for investment decisions, damages, or other losses resulting from use of the website or the information contained therein<
Proprietary Rights
You may not reproduce, modify, create derivative works from, display, perform, publish, distribute, disseminate, broadcast or circulate to any third party, any materials contained on the services without the express prior written consent of the website or its legal owner.

Streetlights and high-bay fixtures require high flux and efficacy to meet the ever increasing demands for system efficiency and energy cost reduction for these applications. Today, LUXEON 5050 LEDs received an upgrade in both flux and efficacy... READ MORE

The recent outbreak of COVID-19 has prompted the large-scale search for practical solutions that can prevent the spread of the deadly virus — from researchers and scientists committed to finding a solution, to the manufacturers and consu... READ MORE