Parameter

Growing period

Model

R²

S

Rooting

S

S = e^{13964.259/a−2.220}

0.067

Flourishing

Quadratic

S = −9.371 × 10⁻⁵a² + 559.714

0.025

Maturing

Compound

S = 1352021.777 × 0.996^a

0.268**

T

Rooting

Cubic

T = 2.085 × 10⁻⁹a³

0.180

Flourishing

Power

T = a^1.620

0.176

Maturing

Inverse

T = −35907.895/a + 46.042

0.049

P

Rooting

Exponential

P = 340417.270e^−0.004a

0.037

Flourishing

Inverse

P = 2673230.106/a − 1046.993

0.029

Maturing

Inverse

P = 1506088.953/a − 604.937

0.014