Table 6.

Photosynthesis rate, transpiration rate, photosynthetic water use efficiency and stomatal conductance under various levels of potted soil water holding capacity.

Field Capacity Levels	Photosynthesis Rate (μM m−2sec-1)		Transpiration Rate (mM m−2sec-1)		Photosynthetic Water Use Efficiency		Stomatal Conductance (M m−2sec-1)
	Chakwal-50	Wafaq-2001	Chakwal-50	Wafaq-2001	Chakwal-50	Wafaq-2001	Chakwal-50	Wafaq-2001
80%	35.7 ± 0.48 a	31 ± 0.48 bc	8.8 ± 0.12 a	7.2 ± 0.12b	4.1 ± 0.11b	4.3 ± 0.14b	0.93 ± 0.03 a	0.82 ± 0.01f
60%	32.8 ± 0.45b	28.8 ± 0.48 cd	8.3 ± 0.09 a	6.9 ± 0.08b	3.9 ± 0.07b	4.2 ± 0.03b	0.82 ± 0.03 ab	0.97 ± 0.01 cd
40%	27.8 ± 0.50 d	24.1 ± 0.42 e	7.5 ± 0.16b	5.8 ± 0.17c	3.7 ± 0.15b	4.2 ± 0.20b	0.68 ± 0.03b	1.03 ± 0.01b
20%	23.8 ± 0.41 e	21.8 ± 0.45 e	5.4 ± 0.18c	4.1 ± 0.17 d	4.5 ± 0.22b	5.4 ± 0.12 a	0.42 ± 0.03c	1.08 ± 0.01 a
LSD	Interaction (T × V) : 2.49		Interaction (T × V) : 0.80		Interaction (T × V) : 0.80		Interaction (T × V) : 0.20

The values represent the averages (±SE) of four independent replicates followed by different letters within columns are significantly different at P ≤ 0.05, according to Duncan’s Multiple Range test.