Fig. 4 Total reduced nitrogen concentration in roots of tomato grown 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. 4 Total reduced nitrogen concentration in roots of tomato grown 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