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Improving yields and traits in US hemp crops - Foundation for Food & Agriculture Research’s (FFAR) Hemp Research Consortium provided two grants totaling $1,170,000 to Cornell University to support a long-term breeding program aimed at cultivating hemp for grain, fiber and CBD production in U.S. growing regions


USA
October 19, 2023

Until the 2018 Farm Bill, hemp breeding research in the United States was limited by hemp’s legal status. As a result, hemp growers have been largely limited to varieties of hemp cultivated in Canada or Europe, but these crops do not thrive in all growing regions of the U.S. To improve domestic hemp crops, the Foundation for Food & Agriculture Research’s (FFAR) Hemp Research Consortium provided two grants totaling $1,170,000 to Cornell University to support a long-term breeding program aimed at cultivating hemp for grain, fiber and CBD production in U.S. growing regions. Consortium partners contributed matching funds for a total investment of $2,340,000.

Successful, productive U.S.-grown hemp crops will yield additional plant protein, health and personal care products, consumer textiles and industrial applications. Hemp may also be a viable alternative crop for tobacco-dependent and economically distressed farmers. However, because Canada and Europe have longer days than the U.S. during the summer growing season, hemp varieties from these areas tend to result in smaller yields, and thus limited profit, when grown in the U.S. This is particularly true in sub-tropical regions such as Florida, because of the shorter days.

Cornell researchers aim to understand the genetic basis of photoperiod threshold, which is the amount of light a plant needs to achieve flowering and other types of development. The researchers are also developing varieties of hemp that will deliver higher yields, especially at lower latitudes in the U.S.
 

With its potential for hundreds of food and industrial applications, hemp can be a major cash crop in the U.S. This research will contribute to a burgeoning hemp industry by acclimating the crop to a variety of growing regions across the country.
Angela Records, Ph.D.
Chief Scientific Officer


The research team, led by Dr. Larry Smart, professor at Cornell’s School of Integrative Plant Science Horticulture Section Plant Breeding and Genetics Section, is developing new hemp cultivars—plants that are specifically bred for desired traits—using marker-assisted selection that show promise in southern latitudes and have specific desirable traits. Marker-assisted selection uses markers such as DNA that are linked to desired traits to choose plants for breeding. Those new cultivars are showing improved grain and fiber yields and undetectable levels of THC, making them fully compliant with THC regulations. Cornell breeders are selecting for late-flowering individuals grown in trials in New York, North Carolina and Florida that also produce high yields of CBD, which has never been achieved before.

Researchers will also use whole genome sequencing to understand the genetic basis for flowering time variation and develop molecular markers to speed breeding for southern-adapted cultivars. These selections will be further bred to produce cultivars with a photoperiod matched to North Carolina, Florida and similar locations.

“Matching flowering time with latitude is the key barrier to improving hemp yields across all market classes – grain, fiber and cannabinoids,” says Smart. “While this project will lead to the development of new cultivars that can produce high yields of CBD in Florida, the tools we will develop can be applied broadly in hemp breeding programs.”

About the Hemp Research Consortium

The Hemp Research Consortium is a public-private partnership created by the Foundation for Food & Agriculture Research. The Consortium convenes stakeholders from across the agricultural spectrum to address research, market gaps and advance a sustainable hemp industry.

 



More news from:
    . FFAR - Foundation for Food and Agriculture Research
    . Cornell University


Website: http://foundationfar.org/

Published: October 20, 2023

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