Table 5. Effect of PM on Growth-Related Traits of Maize Varieties^a.

treatments	V1 V2		V1 V2		V1 V2		V1 V2		V1 V2
	leaf temperature (°C)		transpiration rate (μg H2O m–2 S–1)		photosynthetic rate (μmol CO2/m–2/S–1)		stomatal conductance (mmol m–2 s–1)		WUE (%)
T0	36.6	39.4	0.8	0.4	26.2	31.6	16.5	12.2	30.5	53.8
T1	37.1	39.5	0.6	0.4	28.3	31.3	28.2	10.7	35.6	91.6
T2	37.3	39.5	0.2	1.1	28.5	30.2	25.4	34.7	38.4	82.7
T3	37.0	39.5	0.7	0.7	27.7	31.3	25.9	13.7	38.8	74.6
T4	37.5	39.5	0.5	0.5	28.7	31.4	25.5	11.2	61.6	87.4

^aV₁ represents Pearl, and V₂ represents MMRI.