Effects of rice bran application on the yield and palatability of Chinese and Japanese rice cultivars
2010
Bian, J., Ehime Univ., Matsuyama (Japan) | Morokuma, M. | Shiotsu, F. | Toyota, M. | Kusutani, A.
In order to obtain the basic knowledge on organic cultivation of rice, we studied the effects of rice bran application after transplanting on the yield and palatability of rice cultivars in the paddy field of the university farm at Kagawa University for three years. We used 7 rice cultivars in the Huabei Region of China (China) and 7 in Japan (Japan). These cultivars have different characteristics concerning plant type (panicle-number type/panicle weight type) and yield ability. The differences in unhulled rice yield with the year or cultivar were significant. Unhulled rice number per square m of panicle-weight type cultivars were higher than those of panicle-number type cultivars. When unhulled rice number per square m of these cultivars was about 30000, the percentage of ripened grains was about 80%, and yield was highly stable. Though cultivar differences in appearance of eating-quality, tasty, stickiness and hardness of cooked rice in the sensory test were significant, there were no significant differences in the score of overall eating-quality among cultivars. It was probably because some cultivars tended to have yearly differences in protein content and taste in the sensory test. These results indicate that panicle-weight type cultivars were advantageous in yield than panicle-number type cultivars, but the cultivar difference in eating-quality was small in rice bran cultivation.
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