shade

University of Minnesota Turfgrass team in the media – 8/12/21

Check out our team’s latest efforts in educating the public about our work. Dominic Petrella and Eric Watkins wrote an article for Golf Course Management magazine and Maggie Reiter wrote an article for Hole Notes magazine!

Thu, 08/12/2021 - 16:06


New research publications from our team - 11/12/20

Learn more about our research! Two new research articles from our group have been published in Crop Science. Florence Sessoms and Eric Watkins have published an article on heat stress in cool season turfgrasses, and Dominic Petrella and Eric Watkins have published an article on the differences in shade responses in the fine fescues.

Thu, 11/12/2020 - 11:28


Sunflecks on shaded turfgrass: Good, bad, or of no consequence?

By Dominic Petrella

When we think about turfgrass shaded by trees we as researchers often focus on reductions in light intensity, reductions in the red to far-red ratio (R/FR ratio) along with other changes in spectral quality, competition for water and mineral nutrients, and alterations to temperature compared to full sun environments. However, another challenge for turfgrass plants under shade is exposure to sunflecks.

Tue, 11/03/2020 - 08:55


Fine fescue seed production in Minnesota

By Florence Sessoms

Cool-season turfgrass seed production in Minnesota is localized in Roseau and Lake of the Woods counties in northern Minnesota. Perennial ryegrass is the primary turfgrass being produced for a total of 55,000 to 60,000 acres. Perennial ryegrass is intercropped with spring wheat to allow a better survival during the harsh winter months present up north. Also, the presence of another cash crop, such as spring wheat, allows the farmer to get some income from the field in the first year while the grass is establishing as described in Figure 1.

Sun, 01/05/2020 - 16:53


Different shade, different results

By Dominic Petrella

It is a common misconception that turfgrasses respond the same to neutral and foliar shade conditions. However, this is not true, and even some of the best turfgrasses for shady areas exhibit contrasting growth under these different types of shade. Let’s define the two types of shade:

Wed, 10/16/2019 - 14:06


University of Minnesota Turfgrass team in the media - 10/13/19

Check out our team’s latest efforts in educating the public about our work!  We have a video, an upcoming Minnesota legislature address and three articles.

Water Irrigation Audit - a video from the city of Woodbury, MN features Dan Sandor demonstrating how to conduct an irrigation audit on a home lawn.

Chase Straw will be addressing members of the Minnesota legislature on October 17, 2019 advocating for benefits to golf course superintendents who implement water conservation strategies.

Sun, 10/13/2019 - 22:19


Making sense of light data: Light quality

By Dominic Petrella

Shade can be stressful for turfgrasses due to decreasing photosynthesis, causing turfgrass to produce leaves that are more susceptible to traffic damage and disease incidence.  Turfgrasses grown in shade may not perform very well due to decreased density.  While we understand that shade is stressful, it’s commonly forgotten that there are two different types of shade, qualitative shade and quantitative shade (both having different properties) that can lead to these detrimental changes in turfgrass growth.  To better understand how qualitative shade and quantitative shade can effect turfgrasses, we first need to discuss how light is measured and evaluated. 

Sun, 02/10/2019 - 19:45