The Green Growth Accelerator will speed up low carbon infrastructure projects across the country.
Transport secretary says Scottish Government will try its 'very best' to keep any cost increases to a minimum.
Researchers will look for solutions to global food supply and how technology can help agriculture reach net-zero carbon.
The £46.7m funding pot will assist bus operators to ramp up services while maintaining social distancing.
Rail, bus and tram services will be operating at 25% capacity or lower under new Scottish Government plans.
Transport Scotland data showed an average of 1.2 trips per person per day for the week ending Sunday.