They planted crops in simulated Martian soil and subjected them to simulated Martian lighting.
... kale, sweet potatoes, certain lettuces, and, surprisingly, hops grew very easily, tasting no different than their terrestrial counterparts. Other foods, including regular russet potatoes—the famous staple of the stranded astronaut in the 2015 film The Martian—required special soil or light treatments.
The only thing missing from your question and what they did was they added pressure. The student doing the study added Earth-like air pressure for the experiment.
Lichen can grow at Mars atmospheric pressure, so can some Algae, but for anything else you'll need to increase the pressure to at least 0.47atm. So, until terraforming gets pretty far, you're growing plants indoors on Mars. That "loose transparent tent" is an airtight dome.
Note that the highest human settlement (La Rinconada) has an air pressure of about 0.5atm, and humans can survive as low as 0.06atm (with supplemental oxygen), so there's a decent chance humans will be outside on mars without pressure suits before plants can grow.
Algae has potential to be a good food source - so with a bit of genetic engineering / selective breeding the answer to your question is a reserved yes. But growing typical crops at mars air pressure - no.