Fig 1.
Cumulative germination fraction for Cicer arietinum at (a) 7°C, (b) 14°C, (c) 21°C, (d)28°C, (e)35°C and (f) 42°C having different water potentials (0, -0.2, -0.4, -0.6, -0.8 MPa). Symbols indicate water potential and lines indicate cumulative germination fraction predicted by hydrothermal time model.
Table 1.
The estimated parameters of the hydro and thermal time model to describe Hordeum vulgare L. seed germination under different temperatures (Ts) and water potentials (ѱs).
Table 2.
Prediction of the hydrotime model parameters for chickpea using non-linear regression at each temperature.
Table 3.
Estimated variable values using the hydrothermal time model for describing seed germination and cardinal temperatures of Cicer arietinum L. at six constant Ts at each of the following four ψs.
Fig 2.
Interactive effect of water potential and temperature on (A) Radicle length (B) Plumule length (C) Germination percentage (D) Germination energy of chickpea var. NIFA 1995.
Fig 3.
Interactive effect of water potential and temperature on (A) Mean germination time (B) Coefficient of velocity of germination (C) Germination energy (D) Germination rate index of chickpea var. NIFA 1995.
Fig 4.
Interactive effect of water potential and temperature on (A) Seed vigor index-I (B) Seed vigor index-II (C) Timson germination index (D) Time to 50% germination of chickpea var. NIFA 1995.