Table 7. Physiological responses of M. alba planted in the TGR WLFZ during the recovery stage after winter flooding.

	Ch a (mg/g Fw)	Ch b (mg/g Fw)	Carotenoids (mg/g Fw)	A	gs	Ci	E	Fv/Fm	Yield	Y(NPQ)	Y(NO)	qN
Control	2.08±0.058	0.63±0.021	0.49±0.015	11.90±1.021	0.67±0.082	357±15	2.81±0.530	0.70±0.010	0.68±0.005	0.02±0.007	0.30±0.011	0.09±0.032
Flooding-recovery	2.41±0.015	0.81±0.003	0.55±0.002	14.80±2.401	1.50±0.162	355±8	5.38±0.280	0.71±0.014	0.67±0.008	0.02±0.007	0.31±0.014	0.09±0.030
P>Ff	0.005	0.001	0.017	0.029	0.010	0.881	0.013	0.488	0.406	0.925	0.673	0.954

Ch a, chlorophyll a; Ch b, chlorophyll b; A, net photosynthetic rate; g_s, stomatal conductance; C_i, intercellular CO₂ concentration; E, transpiration rate. Values are means ± SE (n = 6). The values followed by different letters significantly differed at P<0.05 according to Duncan's test. P>Ff indicate comparisons between treatments; Ff, effect of flooding stress.