Table 2.

Sensitivity analyses of the effects of ±20% error of light mitochondrial respiration (R_d), chloroplast CO₂ compensation point (Γ^*), electron transport rate (J_f), and intercellular CO₂ concentration (C_i) on calculation of g_m in well-watered and severe drought tomato at Ψ_soil = −1.44 MPa as compared with the original value of g_m.

Factors	gm in CK	gm in drought	Factors	gm in CK	gm in drought
Rd-20%	0.182 ± 0.006 ns	0.013 ± 0.002 ns	Jf-20%	1.208 ± 0.74 **	0.014 ± 0.002 ns
Rd-10%	0.189 ± 0.005 ns	0.013 ± 0.002 ns	Jf-10%	0.309 ± 0.020 ns	0.014 ± 0.002 ns
Rd+10%	0.206 ± 0.07 ns	0.014 ± 0.002 ns	Jf+10%	0.160 ± 0.005 ns	0.013 ± 0.002 ns
Rd+20%	0.216 ± 0.08 ns	0.014 ± 0.002 ns	Jf+20%	0.141 ± 0.004 ns	0.013 ± 0.002 ns
Γ *-20%	0.146 ± 0.005 **	0.013 ± 0.002 ns	Ci-20%	0.433 ± 0.025 **	0.020 ± 0.003 *
Γ *-10%	0.168 ± 0.009 **	0.013 ± 0.002 ns	Ci-10%	0.270 ± 0.011 **	0.017 ± 0.003 ns
Γ *+10%	0.238 ± 0.015 **	0.014 ± 0.002 ns	Ci+10%	0.155 ± 0.005 **	0.013 ± 0.002 ns
Γ *+20%	0.301 ± 0.011 **	0.014 ± 0.002 ns	Ci+20%	0.127 ± 0.004 **	0.011 ± 0.002 ns

Data were mean ± SD (n = 6). ns indicated no significant difference and ^** indicated significant difference at P < 0.01 level between drought and well-watered treatment.