Day_night__switch ¼ IF Daily_cycle <¼ 6 OR Daily_cycle >¼ 19 THEN 0 ELSE 1
Leaf_area ¼ Leaf * SLA
Leaf_Assimilation_Rate ¼ GRAPH(time)
(312, 35.5), (650, 31.6), (987, 36.5), (1325, 33.5), (1662, 34.3), (2000, 24.6)
Leaf_Assimilation_Rate_CO2 ¼ GRAPH(time)
(312, 44.8), (650, 39.1), (987, 33.3), (1325, 36.5), (1662, 41.3), (2000, 31.9)
Leaf_Assimilation_Rate_O3 ¼ GRAPH(time)
(312, 40.9), (650, 32.1), (987, 34.3), (1325, 35.0), (1662, 44.1), (2000, 22.3)
Leaf_switch ¼ if time <¼ leaf_t_change then 1 else 0.35
Leaf_t_change ¼ 1200
Percent_to_leaf ¼ 0.2
Percent_to_root ¼ 0.3
Percent_to_seed ¼ 0.4
Percent_to_stem ¼ 0.17
Photoinhibition ¼ 0.05
Root_Maintenance_Rd ¼ 0.22
Root_shoot__switch ¼ if time <¼ t_change then 1 else 0.4
Seed__switch_control ¼ if time <¼ seed__t_change then 1 else 0
Seed__switch_control_2 ¼ if time <¼ seed__t_change_2 then 0.75 else 1
Seed__t_change ¼ RANDOM(1300, 1450)
Seed__t_change_2 ¼ 2200
Senesence_switch ¼ if time <¼ t_change_senesence then 0 else 1
Senesence_switch_2 ¼ if time <¼ t_change_senesence_2 then 0 else 1
Shoot_Maintenance_Rd ¼ 0.18
SLA ¼ 0.027
Soybean ¼ root+Leaf+Seed+stem
t_change ¼ RANDOM(850, 975)
t_change_senesence ¼ RANDOM(850, 975)
t_change_senesence_2 ¼ RANDOM(1900, 2250)
Reference
1. Lambers H, Chapin III FS, Pons TL (2008) Plant physiological ecology, 2nd edn., Springer,
New York, p 605
Reference
165