The ATC Doublecut with Micah Woods

The growth potential converts air temperature to a 0 to 1 (or 0 to 100%) scale. Of course, there are a lot more things that affect actual growth, including light, nitrogen, and water. I discuss these and why I'm not so convinced that adding a light factor to GP makes it more useful.

The blog post discussed here is https://www.asianturfgrass.com/post/light-and-gp-again/

This calculator finds full sun PPFD and DLI for any location on any date: https://asianturfgrass.shinyapps.io/ppfd_by_time/

Park Nobel's environmental productivity index is described in this article: https://esajournals.onlinelibrary.wiley.com/doi/abs/10.2307/1938497

It's also mentioned in his text book Physiochemical and Environmental Plant Physiology: https://www.sciencedirect.com/book/9780128191460/physicochemical-and-environmental-plant-physiology

Travis Shaddox's Turfgrass Epistemology channel: https://www.youtube.com/@TurfgrassEpistemology

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/paceturf
ATC's YouTube channel at https://www.youtube.com/asianturfgrasscenter

Register for the Canadian Golf Course Management Conference in Niagara Falls at https://ogsa.ca/golfsupers-2025thecanadian/

Register for the BIGGA Continue to Learn programme in Harrogate: https://www.btme.org.uk/continue-to-learn.html

Register for my seminar at the GCSAA Conference and Show: https://gcsaaconference.com/education/session-detail?evt_id=737742c0-bb52-4192-ab34-f06c2413df04&ses_id=d85db2dc-ec5b-48c4-820f-57abce2a5193

If you'd like to attend the 15th International Turfgrass Research Conference in Japan, here's a direct link to the conference website: https://itrc2025.turfsociety.com/