Hello dear @alexanderalexis, the evaluation carried out by the researchers was in an agroecological area where the incidence of sunlight is very high, it is a tropical area where many species of grasses have adapted, which physiologically have the capabilities to be more photosynthetically efficient because they are classified as C4 have a distinct anatomical structure. The researchers conducted the research to test this grass and their good results indicate that they are better adapted to shade, therefore it is inferred that this species is able to use the far sunlight spectrum more efficiently.
Thanks for your valuable question, have a great weekend.
RE: Scientific Disclosure: Did you know that some grasses tolerate shade?