Effect of Irrigation to Winter Wheat on the Radiation Use Efficiency and Yield of Summer Maize in a Double Cropping System

Table 5

Effect of irrigation during the winter wheat growing season on the RUE of summer maize at different growth stages (%).

Treatment	Jointing	Large bell-mouth	Tasseling	Milking	Maturity
T0	0.6^d	1.1^b	3.1^c	3.7^b	2.2^b
T1	0.7^c	1.2^b	3.2^bc	3.9^ab	2.3^b
T2	0.8^b	1.3^ab	3.4^ab	4.0^ab	2.4^ab
T3	0.9^a	1.5^a	3.6^a	4.1^a	2.6^a

The data was the average values in 2002, 2003, and 2005. Values followed by a different letter are significantly different at 5% probability level.