Table 1.

Soil water content (SWC) in the outer pots of the split-pot experimental set-up shown in Fig. 1 at the beginning (initial) and at harvest of pearl millet and sorghum

Species	Soil treatment	Initial SWC (outer pot, % g g−1)	Final SWC (outer pot, % g g−1)
Sorghum	1. Moist primary/moist nodal	12·5	11·5
	2. Moist primary watering withheld/ moist nodal watering withheld	12·5	5·14
	3. Moist primary/dry nodal without evaporation	2·5	1·25
	4. Moist primary/dry nodal with evaporation	2·5	0·74
Millet	1. Moist primary/moist nodal	12·5	11·3
	2. Moist primary watering withheld/moist nodal watering withheld	12·5	3·82
	3. Moist primary/dry nodal without evaporation	2·5	1·19
	4. Moist primary/dry nodal with evaporation	2·5	0·66

Inner pots were at 12·5 % SWC. Treatments describe the moisture conditions in the inner pot around the primary (seminal) roots and in the outer pot around the nodal roots.