Mary Lu Arpaia and Eric Focht have bred avocado trees in association with the University of California, Riverside, for decades. In the video below, they describe their quest for a better avocado that resulted in the release this year of the Luna UCR™, a new variety that is the great-grandchild of the Hass. Speaking from...

The American Society of Plant Biologists (ASPB) is pleased to announce the recipients of its 2023 awards, which honor distinction in service, outreach, education, and research. ASPB Innovation Prize for Agricultural Technology Renata Bolognesi, Stanislaw Flasinski, Sergey Ivashuta, Daniel Kendrick, Curtis Scherder, Gerrit Segers Bayer, Chesterfield, Missouri Charles Albert Shull Award José Dinneny Stanford University...

Katayoon “Katie” Dehesh once had to make an impossible choice: leave her Persian homeland forever to pursue a life of science or stay near family and give up her passion for independence. She knew leaving Iran would not be easy, and she’d have to build her life again from scratch. Nevertheless, she persisted — and...

Despite recent, torrential rains, most of Southern California remains in a drought. Accordingly, many residents plant trees prized for drought tolerance, but a new UC Riverside-led study shows these trees lose this tolerance once they’re watered. One goal of the study was to understand how artificial irrigation affects the trees’ carbon and water use. To...

UCR Published the Following Article by Jules Bernstein on December 8, 2022. Two UCR faculty have been elected fellows of the National Academy of Inventors, or NAI. They are Sean Cutler, distinguished professor of plant cell biology, and Charles Wyman, distinguished professor of chemical and environmental engineering. NAI fellowship is the highest professional distinction awarded...

A global cross-disciplinary team of scientists has developed the first comprehensive classification of the world’s ecosystems across land, rivers, wetlands, and seas. The ecosystem typology will enable more coordinated and effective biodiversity conservation, critical for human well-being. Distinguished Professor Emerita Janet Franklin became involved in this international effort through her scientific advisory role as a...

Though it is disappearing, California’s official state grass has the ability to live for 100 years or more. New research demonstrates that sheep and cattle can help it achieve that longevity. Purple needlegrass once dominated the state’s grasslands, serving as food for Native Americans and for more than 330 terrestrial creatures. Today, California has lost...

The cheerleader for Public Enemy No. 1 greeted me at the gates to UC Riverside’s Agricultural Experiment Station with a smile and some choice words. “Every time there’s a serious drought, I’m in the L.A. Times,” Jim Baird said, only half-jokingly. “Why is it always a knee-jerk reaction? When it’s not a drought, I don’t...

Approximately 70 high school students who are considering careers in STEM, or science, technology, engineering, and math, industries spent three days at the UC Riverside campus engaging with industry experts and other teens from surrounding Riverside and San Bernardino County high schools, many of them from Riverside Unified School District. STEM Solutions, a free, hands-on...

Scientists have modified proteins involved in plants’ natural response to stress, making them the basis of innovative tests for multiple chemicals, including banned pesticides and deadly, synthetic cannabinoids. During drought, plants produce ABA, a hormone that helps them hold on to water. Additional proteins, called receptors, help the plant recognize and respond to ABA. UC...

Plants — they’re just like us, with unique techniques for handling stress. To save one of the most important crops on Earth from extreme climate swings, scientists are mapping out plants’ own stress-busting strategies. A UC Riverside-led team has learned what happens to the roots of rice plants when they’re confronted with two types of...

The worst fire impacts this year are predicted to hit Northern California’s higher elevation forests and Southern California’s chaparral-clad mountainous National Forest lands. To aid recovery, UC Riverside ecologists are collaborating with the US Forest Service to target these spots with new post-fire ecological restoration strategies. Wildfires are becoming more ferocious, damaging, and expansive in...

Scientists at UC Riverside have a shot at eradicating a deadly threat to vineyards posed by the glassy-winged sharpshooter, just as its resistance to insecticide has been growing. When the half-inch-long flying insect feeds on grapevines, it transmits bacteria that causes Pierce’s Disease. Once infected, a vine is likely to die within three years —...

Claire Whitaker loves fresh fruit. That’s why the botany and plant sciences doctoral student has spent the last three years researching how to prevent gray, fuzzy fungus from consuming fruits such as strawberries. That same passion is what garnered her the top slot in UC Riverside’s 8th annual Grad Slam competition, held Thursday, March 3...

A new study casts doubt on drought as the driver of ancient Mayan civilization collapse. There is no dispute that a series of droughts occurred in the Yucatan Peninsula of southeastern Mexico and northern Central America at the end of the ninth century, when Maya cities mysteriously began to be depopulated. Believing the Maya were...

A $1.5 million emergency grant is enabling UC Riverside scientists to find plants impervious to a disease threatening America’s citrus fruit supply. Citrus Greening Disease — also known as Huanglongbing, or HLB — results in fruit that is bitter and worthless. It has crippled Florida’s citrus industry and has already been detected in California, which...

team of researchers led by UC Riverside has demonstrated for the first time one way that a small molecule turns a single cell into something as large as a tree. For half a century, scientists have known that all plants depend on this molecule, auxin, to grow. Until now, they didn't understand exactly how auxin...

Picking fruit at the University of California, Riverside, is a singular experience. In the Citrus Variety Collection’s orchard, researchers walk among trees bearing oranges, lemons, and limes of all shapes and sizes, from spindly to oblong, bumpy to smooth, huge to tiny. There are more than 1,000 kinds of citrus, two trees of each: a...

Scientists have figured out how plants respond to light and can flip this genetic switch to encourage food growth. The discovery could help increase food supply for an expanding population with shrinking opportunities for farming. The research on this genetic switch, led by UC Riverside, has now been published in the journal Nature Communications. Almost...

Seeds that would otherwise lie dormant will spring to life with the aid of a new chemical discovered by a UC Riverside-led team. Plants have the ability to perceive drought. When they do, they emit a hormone that helps them hold on to water. This same hormone, ABA, sends a message to seeds that it...