|
Traitsa
|
Tissues
|
Chinese Spring (CS)
|
Kenong199 (KN199)
|
|---|
|
+Pi
|
−Pi
|
+Pi
|
−Pi
|
|---|
|
Biomass (mg DWb/plant)
|
Shoot
|
252.7 ± 40.1a
|
207.4 ± 27.1b
|
171.2 ± 5.0b
|
158.9 ± 18.5b
|
|
Root
|
43.8 ± 5.8bc
|
49.2 ± 3.6ab
|
36.9 ± 2.0c
|
53.3 ± 7.7a
|
|
R/S
|
0.207 ± 0.017b
|
0.266 ± 0.010ab
|
0.236 ± 0.026ab
|
0.298 ± 0.078a
|
|
Length (cm)
|
Shoot
|
35.7 ± 1.9a
|
32.8 ± 2.0a
|
28.2 ± 2.7b
|
27.7 ± 3.8b
|
|
Root
|
32.6 ± 1.9c
|
33.6 ± 3.7bc
|
34.9 ± 2.9b
|
38.9 ± 1.8a
|
|
Total P conc.c (mg P/g DW)
|
Shoot
|
4.60 ± 0.69b
|
1.21 ± 0.10d
|
6.31 ± 0.73a
|
2.12 ± 0.16c
|
|
Root
|
6.46 ± 0.15b
|
2.52 ± 0.26c
|
7.99 ± 0.37a
|
2.81 ± 0.13c
|
|
Soluble Pi conc. (ug P/g FWd)
|
Shoot
|
282.40 ± 33.44b
|
81.31 ± 0.83d
|
449.72 ± 18.81a
|
146.07 ± 18.30c
|
|
Root
|
198.39 ± 36.61b
|
43.68 ± 6.46c
|
290.73 ± 40.95a
|
58.10 ± 10.28c
|
|
P content (mg P/plant)
|
Shoot
|
1.78 ± 0.22a
|
0.38 ± 0.03c
|
1.26 ± 0.27b
|
0.45 ± 0.88c
|
|
Root
|
0.55 ± 0.04a
|
0.18 ± 0.03b
|
0.50 ± 0.13a
|
0.20 ± 0.10b
|
|
PUEe (g DW/mg P)
|
Shoot
|
0.57 ± 0.06c
|
2.68 ± 0.22a
|
0.82 ± 0.16c
|
2.27 ± 0.36b
|
|
Root
|
1.81 ± 0.14b
|
5.52 ± 0.78a
|
2.09 ± 0.48b
|
4.92 ± 0.28a
|
- Notes: a 12-day-old wheat seedlings were grown on Pi-sufficient (+Pi) solution or Pi-deficient (−Pi) solutions for 7 days. Data are means ± SD (n = 4), and different letters indicate significant differences using the least significant difference multiple range test (p < 0.05). b DW: dry weight; c conc.: concentration; d FW: fresh weight; e PUE: phosphate utilization efficiency
