Table 1.

Light-saturated leaf carbon assimilation (A_sat, μmol m⁻²s⁻¹), apparent maximum in vivo carboxylation rate at Rubisco (V_cmax, μmol m⁻² s⁻¹), maximum carboxylation rate by Rubisco estimated from the partial pressure of CO₂ inside the chloroplast (V_cmax,Cc, μmol m⁻² s⁻¹), regeneration of ribulose-1,5-bisphosphate represented by electron transport rate (J_max, μmol m⁻² s⁻¹), triose phosphate utilization (V_TPU, μmol m⁻² s⁻¹), stomatal conductance (g_s, mol m⁻² s⁻¹), intrinsic water use efficiency (iWUE, μmol CO₂ mol H₂O⁻¹) and intracellular CO₂ concentration at ambient [CO₂] around the leaf, 400 μmol mol⁻¹ (operating c_i, μmol mol⁻¹) in cassava cultivars.

Cultivar	Asat	Vcmax	Vcmax, Cc	Jmax	VTPU	gs	iWUE	Operating ci
Mbundumali	20.32 ± 1.05 b	100.12 ± 3.96b	124.81 ± 12.47 ab	169.41 ± 6.01 a	11.03 ± 0.43 ab	0.28 ± 0.02 abc	81.63 ± 5.84 ab	244.1 ± 9.45 ab
TME3	21.49 ± 1.78 abcd	101.83 ± 10.75 ab	156.73 ± 8.51 a	165.39 ± 14.52 ab	10.85 ± 0.89 ab	0.34 ± 0.02 a	71.66 ± 7.15 ab	257.43 ± 11.08 ab
TME419	22.17 ± 1.36 abcd	118.18 ± 6.90a	128.28 ± 5.98 b	183.86 ± 14.78 a	11.65 ± 0.81 ab	0.27 ± 0.02 bc	83.07 ± 4.48 ab	241.21 ± 7.69 ab
TME693	23.22 ± 1.27 abcd	110.29 ± 7.42 ab	133.19 ± 13.71 ab	171.3 ± 11.08 ab	11.43 ± 0.7 ab	0.33 ± 0.02 abc	75.41 ± 4.01 ab	252.96 ± 6.77 ab
TME7	24.61 ± 1.60 ac	104.82 ± 2.72 ab	140.44 ± 8.79 b	163.45 ± 7.47 ab	10.9 ± 0.36 a	0.34 ± 0.03 abc	74.22 ± 4.88 ab	254.91 ± 7.70 ab
TMS01/1412	24.81 ± 1.22 a	113.48 ± 3.83 a	135.62 ± 6.05 ab	175.88 ± 11.59 a	11.46 ± 0.68 a	0.32 ± 0.01 a	73.35 ± 4.85 b	255.77 ± 7.73 ab
TMS30001	22.95 ± 1.27 abcd	117.16 ± 6.87a	136.24 ± 7.21 ab	169.67 ± 5.73 a	11.13 ± 0.26a	0.28 ± 0.02 c	86.57 ± 4.52 ab	235.19 ± 7.33 b
TMS30572	20.81 ± 0.95 bd	95.24 ± 4.83 ab	120.63 ± 9.86 b	154.5 ± 10.56 ab	9.97 ± 0.50 ab	0.32 ± 0.04 abc	72.92 ± 6.13 ab	258.15 ± 9.35 ab
TMS96/1632	24.21 ± 1.23 ac	102.65 ± 6.75 ab	141.65 ± 9.45 ab	163.24 ± 14.20 ab	10.83 ± 0.70 b	0.33 ± 0.01 a	71.49 ± 3.38 b	258.63 ± 5.12 a
TMS97/2205	22.12 ± 0.37 b	100.33 ± 2.70 ab	122.47 ± 10.8 b	157.68 ± 7.50 ab	10.77 ± 0.51 ab	0.25 ± 0.02 c	93.48 ± 6.91 a	226.83 ± 10.84 b
TMS98/0002	21.92 ± 1.26 abcd	96.28 ± 2.23 b	119.68 ± 8.7 b	149.36 ± 10.15ab	10.5 ± 0.69 ab	0.29 ± 0.03 abc	78.96 ± 8.99 ab	249.02 ± 13.49 ab
TMS98/0505	21.49 ± 0.62 bc	97.06 ± 11.21 ab	132.68 ± 9.55 ab	161.15 ± 13.25 ab	10.45 ± 0.70 ab	0.3 ± 0.01 abc	78.7 ± 1.32 ab	250.41 ± 2.23 ab
TMS98/0581	23.11 ± 1.12 abcd	99.33 ± 4.36 ab	138.67 ± 7.6 ab	148.69 ± 4.63 b	9.88 ± 0.24 b	0.31 ± 0.02 abc	73.47 ± 5.31 ab	257.31 ± 8.53 ab

Values represent mean ± SE. n = 8. Different letters represent statistically significant differences (P < 0.05) among the cultivars.