Purdue receives $9 million for remote plant sensing

Purdue receives $9 million for remote plant sensing
Sensing technology, including high-resolution RGB cameras, hyperspectral imaging, LiDAR and thermal infrared sensors, can improve the accuracy and efficiency of plant phenotyping. (Purdue Agricultural Communication/Tom Campbell)

Purdue University scientists are developing remote sensing technologies to provide faster, more accurate data collection to improve the speed at which plant breeders can bring better cultivars to the market.

The scientists developed that technology under the Transportation Energy Resources from Renewable Agriculture (TERRA) program, through a $6.6 million U.S. Department of Energy Advanced Research Projects Agency–Energy (ARPA-E) grant awarded in 2015. The agency is funding a second phase of the TERRA project at $4.5 million that is being matched with another $4.5 million from strategic partners, including Ag Alumni SeedCorteva AgriscienceBeck’s Hybrids and Headwall Photonics.

“Manual phenotyping is slow and costly. To do all of this measurement by hand takes a lot of people, and you don’t get a lot of data,” said Mitch Tuinstra, a Purdue professor of plant breeding and genetics, Wickersham Chair of Excellence in Agricultural Research, and principal investigator for the project, in an article on Purdue University’s website. “Next-generation phenotyping technologies enable plant scientists and plant breeders to collect data automatically by remote sensing and process it using computational algorithms.”

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The platform developed under the TERRA project employs several types of sensors, including high-resolution RGB cameras as well as hyperspectral imaging, LiDAR and thermal infrared sensors. Together, they can be mounted to on-ground farm machinery or unmanned aerial vehicles (drones) to detect plant height, canopy structure, plant architecture, biomass yield and more.

While the DOE is interested in the sensing platform to advance sorghum as a feedstock for cellulosic biofuels, the technology can be used for many other feed, fiber and biofuel crops.

To meet industry needs, Tuinstra and colleagues founded GRYFN, a startup aimed at getting the sensing technology into the hands of companies that can use it in their breeding programs. GRYFN CEO Matt Bechdol said the company will connect with plant breeders to demonstrate the technology’s benefits and then use their input to improve the technology so that companies can make the best use of it.

Ag Alumni Seed, Indiana’s foundation seed company and a non-profit Purdue affiliate that is working with GRYFN, is eager to see remote sensing technology advances that can reduce input costs for its breeding program.

“When we send people into the field right now to do trial evaluation, we’re sending plant breeders with PhDs. Those are expensive employees. To have them spend multiple days walking trials, it’s an inefficient use of arguably our most valuable people,” said Jay Hulbert, Ag Alumni Seed president and CEO. “If we can get good data from a drone that either allows us to skip an evaluation or allows us to evaluate only the top 10 percent of the trials, then that’s a huge advantage. It would be a tremendous savings in time and resources for us.”

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