A SIMPLIFIED METHOD FOR THE DETERMINATION OF THE AMOUNT OF MG AND K EXTRACTED FROM RICE GRAINS WITH A HYDROCHLORIC-ACID SOLUTION

A simplified method for selection for eating quality in early generati ons of rice involved the determination of the Mg/K ratio of brown rice by extraction with dilute hydrochloric acid (0.36 N) in several culti vars, Grains were extracted with hydrochloric acid for 60 minutes at r oom temperature, collected and washed immediately with distilled water . Germinability of grains after this procedure exceeded 80 %. Chemical analyses showed that 15-17 % of total K and 8-10 % of total Mg could be extracted by the proposed method.