CHARACTERIZATION AND IDENTIFICATION OF GORA RICES USING PHYSICO CHEMICAL TRAITS

Abstract

Variation for ten quality characters were studied in 57 gora (upland) rice (Oryza sativa L.) accessions from plateau region of Bihar. Of the three groups, brown, white and black; brown and black gora rices appeared to be highly variable. A total of 25 accessions could be identified based on kernel size, shape, colour, amylose content, gelatinization temperature, kernel elongation, phenol test and leaf blast reaction. However, three genotypes differing in their flowering duration could not be separated by these tests, suggesting that morphological, physiological and physico-chemical characteristics should be simultaneously considered in the varietal identification studies. Quality characteristics of gora rices have also been presented.