flowers time intensity 62.3 1 150 77.4 1 150 55.3 1 300 54.2 1 300 49.6 1 450 61.9 1 450 39.4 1 600 45.7 1 600 31.3 1 750 44.9 1 750 36.8 1 900 41.9 1 900 77.8 2 150 75.6 2 150 69.1 2 300 78.0 2 300 57.0 2 450 71.1 2 450 62.9 2 600 52.2 2 600 60.3 2 750 45.6 2 750 52.6 2 900 44.4 2 900