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Posts tagged: University of California

Discovery Brings Wheat Flowering Mechanism to Light

Jorge Dubcovsky, professor of plant sciences at the University of California–Davis (pictured), and fellow UC Davis researcher Clark Lagarias uncovered a key determinant in the time it takes wheat to flower. Their discovery could lead to further research that would allow wheat growers to produce greater yields to feed the world’s growing population. Their work is published in this month’s edition of edition of Proceedings of the National Academy of Sciences. Photo courtesy of Jorge Dubcovsky.

Jorge Dubcovsky, professor of plant sciences at the University of California–Davis (pictured), and fellow UC Davis researcher Clark Lagarias uncovered a key determinant in the time it takes wheat to flower. Their discovery could lead to further research that would allow wheat growers to produce greater yields to feed the world’s growing population. Their work is published in this month’s edition of edition of Proceedings of the National Academy of Sciences. Photo courtesy of Jorge Dubcovsky.

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

That handy chart on the back of seed packets tells backyard gardeners when it’s time to plant based on where they live.  Things get a bit more complicated, however, when your goal is to feed the world.

Researchers at the University of California–Davis have unlocked a long-held secret into how wheat determines when it’s time to flower.  This information is critical to wheat growers because flowering marks the transition between the plant’s growing period and the reproductive stage when the actual grain is created.  Equipped with this knowledge, breeders can develop better adapted varieties to help growers maximize yield. Read more »

New International Wood Packaging Standard Stops Bugs Dead in their Tracks

Several hundred non-native forest insect species have become established in the U.S. Recent arrivals, such as this adult Asian longhorned beetle, have killed millions of trees and altered urban landscapes in the Northeast and Midwest. (U.S. Department of Agriculture/Kenneth R. Law, courtesy of Bugwood.org)

Several hundred non-native forest insect species have become established in the U.S. Recent arrivals, such as this adult Asian longhorned beetle, have killed millions of trees and altered urban landscapes in the Northeast and Midwest. (U.S. Department of Agriculture/Kenneth R. Law, courtesy of Bugwood.org)

This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.

Wood makes great packaging material—it’s inexpensive, abundant and versatile—but there’s one drawback: destructive forest pests stowaway in the pallets, crates and dunnage (wood used to brace cargo) used in international shipping. Over many years, international trade has resulted in the inadvertent introduction of many non-native wood-feeding pests and plant pathogens in the U.S. and throughout the world. Some of these non-native insects, including the emerald ash borer and the Asian longhorned beetle, have become highly invasive and caused serious environmental and economic impacts.

But an international standard for wood packaging material is slowing the inadvertent export of invasive bark- and wood-boring insects, according to a study conducted by Robert Haack, a research entomologist with the Forest Service’s Northern Research Station in Lansing, Mich., and a team of scientists. Researchers found as much as a 52 percent drop in infestation rates in the U.S., where the standard was implemented in three phases between 2005 and 2006. The study was published May 14 in the journal PLOS ONE. Read more »