Peanut Seed Vigor Evaluation Using a Thermal Gradient
Figure 1
Cumulative germination patterns for Georgia runner-type peanut seed lots produced in 2006 (a), 2007 (b), and 2008 (c), based on nonlinear regression using growing-degree day (GDD) accumulation with a base temperature 15°C. To calculate the regression equation for the respective seed lot, the parameter estimates shown in Table 1 for the equation ] were used. Germination was measured on a thermal gradient.
