Figure 6
From: Morphological and physiological factors contributing to early vigor in the elite rice cultivar 9,311
Comparison of root surface areas and normalized nitrogen uptake rate in HHZ and 9,311. Total root surface area (a), root active uptake surface area (b) and active-to-total root surface area ratio (c) at 10, 25, 40 and 50 DAG. Plant NO3− uptake rate (d), NH4+ uptake rate (e) and total nitrogen uptake rate (f) on an active uptake area basis at 10, 25, 40 and 50 DAG. Plant NO3− uptake rate (g), NH4+ uptake rate (h) and total nitrogen uptake rate (i) on a root dry weight basis at 10, 25, 40 and 50 DAG. Data presented are mean values with s.d. (n = 5). **P < 0.01 (Student’s t-test).
