Fig. 5

Visualization of endosperm cell size and cell area. Paraffin embedded caryopses from 12 DAA spikelets were sectioned longitudinally by microtome followed by DAPI staining for comparative visualization of cells and nuclear size (a), and quantification of the endosperm cell area (b) in OR-1918 rice cultivar grown in pots and treated with 50 μM BAP through root application. Four cells from each slide were taken for calculation of cells area and represented as mean (vertical bars) ± SD (b). The bar pair marked by ‘**’ indicates significant difference (p ≤ 0.01) in the endosperm cell size of the caryopses from control and BAP treated plants, as revealed by ‘t’ test (b)