Abstract
The protein content of brown rice of dwarf lowland variety was investigated on 12 samples each grown in 1968 and 1969 (experiment 1). Further, the protein content of brown rice and the nitrogen content of each part of rice plant at heading and full ripe stages were investigated on 14 samples grown in 1969 (experiment 2). There was considerable variation in protein content of the same variety in experiment 1 and 2. The low kernel-weight variety in the samples showed a tendency of high protein content. With respect to the same cultural condition, the protein content was negatively correlated with thousand-kernel-weight on 1968 sample (experiment 1) and 1969 sample (experiment 2). In experiment 2, the protein content of brown rice was positively correlated with the nitrogen content of ear and leaf sheath+culm at heading stage. On the other hand. the thousand-kernel-weight was negatively correlated with the nitrogen content of ear at heading stage.
