Figure 1
From: Modeling seasonal emergence of Poa annua in urban greenspace
Gompertz function fit to early season (0 to 50% yearly maximum) P. annua emergence data collected at the East Tennessee AgResearch & Education Center—Plant Sciences Unit (Knoxville, TN) in 2019 and 2020, as well as Lambert Acres Golf Course (Alcoa, TN) and Three Ridges Golf Course (Knoxville, TN) in 2020. Emergence data were collected weekly with observations were regressed over cooling degree days (CDD21C) with accumulation beginning at the summer solstice using a 21 °C base temperature. Colored circles represent actual observations whereas the solid line represents model predictions. Measures of model fit for each location and year are presented in Table 1.
