Figure 2. Changes in leaf area index (LAI) as affected by leaf removal under high plant density in different growing seasons from 2012 to 2013.

S₀ refers to control (no leaf removal); S₂, S₄ and S₆ refer to the removal of two, four or six leaves, respectively, from top of a plant. 4DAS, R3 and R6 represent four days after silking, milking stage and physiological maturity, respectively. Data are means ± SE (n = 3). Different small letters in each group indicate significant differences at P < 0.05.