Figure 5: Temperature gradient experiment.
From: Selection for Oil Content During Soybean Domestication Revealed by X-Ray Tomography of Ancient Beans
Six P33.9O23.6 soybean seeds were carbonized at 275 °C. In the Small category, seeds charred at 300 °C had about half the number of seeds with small holes then when fired at 275 °C. The Medium and Large categories were not affected by temperature. The asterisk (∗) indicates significant differences compared with holes in 275 °C (P < 0.01, two-tailed t-test). The bars indicate standard error. Statistically not significant differences with P > 0.05 are not indicated.
