Constants in the turfgrass growth potential equation

The PACE Turf growth potential equation has one variable (the actual air temperature) and two constants. The constants are optimum air temperature and a term for variance that controls the shape of the curve as the actual temperature moves away from the optimum temperature. It's a little more complicated than that, because the constants change depending on whether you are making the calculation for cool-season grass, warm-season grass, and on whether you are using the Fahrenheit temperature scale or the Celsius temperature scale.The blog post discussed is https://www.asianturfgrass.com/post/calculating-gp/PACE Turf climate appraisal forms at: https://www.paceturf.org/journal/climateMore about GP and the variance term at https://www.asianturfgrass.com/post/what-is-variance-in-growth-potential-equation/Read more about all kinds of turfgrass topics at https://www.asianturfgrass.com/Get ATC newsletters at https://www.asianturfgrass.com/newsletter/Turfgrass information and decision-making tools at https://www.paceturf.org/PACE Turf YouTube channel at https://www.youtube.com/user/paceturfATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter More about ATC soil tests at https://www.asianturfgrass.com/project/soil-tests/