flowers time intensity 62.3 L 150 77.4 L 150 55.3 L 300 54.2 L 300 49.6 L 450 61.9 L 450 39.4 L 600 45.7 L 600 31.3 L 750 44.9 L 750 36.8 L 900 41.9 L 900 77.8 E 150 75.6 E 150 69.1 E 300 78.0 E 300 57.0 E 450 71.1 E 450 62.9 E 600 52.2 E 600 60.3 E 750 45.6 E 750 52.6 E 900 44.4 E 900