Fig. 1 Relative growth rate of tomato under +5°C or +14°C air DIF with the root zone heated constantly, in the day, in the night or not heated. Error bars indicate standard error of the estimate
Fig. 1 Relative growth rate of tomato under +5°C or +14°C air DIF with the root zone heated constantly, in the day, in the night or not heated. Error bars indicate standard error of the estimate