Effect of Root Restriction on the Growth, Photosynthesis Rate, and Source and Sink Relationship of Chilli (Capsicum annuum L.) Grown in Soilless Culture
Table 5
Maximum photochemical efficiency of PSII (Fv/Fm), initial fluorescence (Fo) and maximal fluorescence (Fm) for control and root-restricted chilli plants grown for 112 days after transplanting.
Parameters
Treatments
Days after transplant
14
28
42
56
Fv/Fm
Control
0.776±0.006a
0.786±0.002a
0.808±0.002a
0.788±0.002a
Restricted
0.763±0.004a
0.802±0.008a
0.802±0.004a
0.792±0.004a
Fo
Control
593.8±11.59a
576.0±2.82b
595.0±3.58a
603.8±4.87a
Restricted
607.8±13.92a
597.5±3.97a
503.0±56.63a
605.8±6.03a
Fm
Control
2556.5±58.79a
2691.8±36.74a
3101.5±10.99a
2795.8±41.88a
Restricted
2562.0±93.89a
2982.5±156.6a
2576.0±297.9a
2799.0±32.55a
70
84
98
112
Fv/Fm
Control
0.767±0.004a
0.787±0.001a
0.784±0.001a
0.667±0.05a
Restricted
0.771±0.002a
0.777±0.001b
0.785±0.004a
0.689±0.04a
Fo
Control
579.8±11.52a
572.3±1.44a
594.0±7.01a
675.5±60.26a
Restricted
589.0±2.38a
581.3±6.47a
593.3±5.81a
552.0±89.10a
Fm
Control
2485.8±80.48a
2704.5±17.35a
2768.5±29.79a
1943.0±150.9a
Restricted
2548.0±40.17a
2644.3±52.37a
2663.3±53.99a
1402.0±116.5b
Means followed by similar letters within a column for each parameter were not significantly different at based on t-test analysis ().
