The leaf width, thickness, and specific leaf weight (SLW) of the wide and narrow sides of leaf blade in the top three leaves at heading stage.

The experiments were conducted in the early, middle, and late growing seasons in Wuxue County and Wuhan City, Hubei Province, China in 2014.Within a row for each leaf position, means followed by different letters are significantly different according to the least significant difference (LSD) at the 0.05 probability level.The leaf width, thickness, and specific leaf weight (SLW) of the wide and narrow sides of leaf blade in the top three leaves at heading stage.