Genetic coefficient parameters

Values

BRRI dhan28

BRRI dhan29

BRRI dhan58

Juvenile phase coefficient (P1), GDDa

825

950

850

Photoperiodism coefficient (P2R), GDD h−1

150

150

150

Grain filling duration coefficient (P5), GDD

425

550

470

Critical photoperiod (P20), h

12.6

12.8

12.7

Spikelet number coefficient (G1)

50

60

55

Single grain weight (G2), g

0.022

0.021

0.021

Tillering coefficient (G3)

1.0

1.0

1.0

Temperature tolerance coefficient (G4)

1.0

1.0

1.0