Figure 1.

Dry mass accumulation of apical (close symbols) and basal (open symbols) spikelets during post-anthesis period from 0 to 30 days at 5 days interval in SR-157, (a) and SR-159, (b) The graph has been plotted in terms of logistic growth curve equation, $\text{W}\left(\text{t}\right)=\text{Wo M}/\left[\text{Wo}+{\left(\text{M}-\text{Wo}\right)}^{-\text{kt}}\right]$⁴⁸, where W (t), grain weight at a particular time ‘t’; Wo, initial grain weight; M, maximum grain weight; k, growth rate constant calculated from Microsoft Excel solver, 2007; t, time.