Crops

The Sustainable Student Farm (SSF) is a cornerstone of the College of Agricultural, Consumer and Environmental Sciences community. This Friday, September 5th, from 3 to 6 p.m., the farm is opening its gates and welcoming visitors for its annual open house.There will be food offerings and tours of the farm, as well as talks from faculty and SSF partners.

Small grains researcher Juan David Arbelaez-Velez knows the secret to making perfect rice — and it’s not about how you cook it. Arbelaez and his team are investigating the genetic blueprint that determines different grain attributes such as appearance, cooking time, and texture. Their paper, published in The Plant Genome, offers a strategy that will help breeders improve grain quality holistically, while cutting costs and saving time.

When most growers plant corn, they expect perfect, uniform rows and plump and pearly yellow kernels lining the cob. But a group of USDA Agricultural Research Service scientists intentionally plant the misfits — some gnarled and speckled, others sprouting tassels where ears should be — to perpetuate the wide array of genetic variation in the Midwest’s most economically important crop. 

While the majority of Midwestern farmers rotate corn and soybeans, commodity prices and corn yield advantages compel some to plant corn year after year. Although foundational research on the benefits of corn-soybean rotation goes back decades, University of Illinois Urbana-Champaign scientists are working to address remaining holistic questions about crop yield, environmental impacts, and economic returns under various crop rotation scenarios. 

Laboratory and field experiments have repeatedly shown that modifying the process of photosynthesis or the physical characteristics of plants can make crops more resilient to hotter temperatures. Scientists can now alter the abundance or orientation of leaves, change leaf chemistry to improve heat tolerance and adjust key steps in the process of photosynthesis to overcome bottlenecks, researchers report in a new review in the journal Science.

Inside a large walk-in refrigerator on the University of Illinois Urbana-Champaign campus, thousands of envelopes hold the fate of global food security, not to mention a significant portion of the world’s economy.

The National Soybean Germplasm Collection, maintained by a small but mighty USDA Agricultural Research Service team, is the country’s only public soybean seed bank, encompassing nearly the whole of the crop’s genetic diversity and impacting nearly every soybean product grown today — not just in the U.S., but across the world. 

The physical structure of corn plants — including the angle of leaves bending from the stem and the number of pollen-laden tassel branches — makes a big difference for yield. Compact plants can be planted closer together, adding up to more ears per acre. But compact corn didn’t happen by accident; years of hybrid breeding did that. Now, two new genome-based studies are making it possible to precisely adjust corn architecture to meet future demands.

Unfertilized soybean fields with lower soil fertility should be planted earlier than high fertility fields, according to a University of Illinois Urbana-Champaign study that re-evaluates longtime soil testing. 

This result comes as a bit of a surprise, says Fred Below, senior author of the study. 

The U.S. Department of Energy Advanced Research Projects Agency-Energy (ARPA-E) has announced $5 million in funding to the University of Illinois Urbana-Champaign and partner institutions to develop a new variety of corn called NSave that will reduce nitrogen fertilizer use and greenhouse gas emissions while maintaining crop yield.

Most corn and soybean fields in the U.S. are planted with herbicide-resistant crop varieties. However, the evolution of superweeds that have developed resistance to common herbicides is jeopardizing current weed management strategies. Agricultural robotics for mechanical weeding is an emerging technology that could potentially provide a solution.