Application of foliar fertilization, cultivars with foliar fertilization showed effect on root starch content but cultivars did not effect.
The treatment with Zn+Mg+S tended to give higher root starch content as compared with all of application (28.51%) while HB 80 cultivar also gave higher root starch content ( 27.16%).
The HB 80 cultivar with Zn+Mg+S gave the highest by 29.33%.