At all soaking temperatures, a germination temperature of
35 °C gave the highest GABA content in both cultivars. Genotype
significantly (P < 0.001) affected GABA content. On average
across soaking and germination temperatures in neutral soaking
water, the GABA content was 44.8% higher in indica GBR
(0.84 g kg−1 DW) as compared to japonica rice (0.58 g kg−1 DW)
(Fig. 2).