XÁC ĐỊNH HÀM LƯỢNG AMYLOZA VÀ PHÂN LOẠI CÁC GIỐNG LÚA ĐỊA PHƯƠNG THU THẬP TỪ CÁC TỈNH MIỀN TRUNG VIỆT NAM

Ninety eight local rice cultivars collected from mountainous districts of some provinces in Central Vietnam were used for determination of amylose content and subspecies classification. Sixty four out of 98 studied rice cultivars had low amylose content (below 6%) and they were glutinous rice. The rest 34 rice cultivars were non - glutinous rice, among them 3 cultivars had very low amylose content, 16 cultivars with low, 6 cultivars with medium and 9 cultivars with high amylose content, respectively. Glutinous rice or non - glutinous rice with low amylose content were mainly cultivated and used by the ethnic minority groups from mountainous areas. Almost (81 rice cultivars, occupied 82.7%) of studied rice cultivars belonged to Japonica subspecies while other (17 cultivars, 17.3%) were Indica subspecies.