Fig. 5 Effect of planting pattern (P1: 1 seedling with 30 9 30 cm,
P2: 1 seedling with 20 9 20 cm, and P3: 3–4 seedlings with
20 9 20 cm) and water regimes (IF-V intermittent irrigation during
vegetative stage, IF-R intermittent irrigation extending into the
reproductive stage, NF non-flooded, and CF continuous flooding) on
root length density per hill (cm cm-3) at flowering and at 20 days
after flowering (DAF) for soil layers of 15–20 cm (a) and 35–40 cm
depth (b). Error bars show s.e.