抄録
We are developing an automatic digital imaging system for acquiring plant growth measurements necessary for detailed physiological analysis of various mutant seedlings. Equipment of the Hitachi Rice Imaging System (HIRIS), developed for germinating rice seedlings (Type Babe), consists of an image capturer and an image analyzer. The image capturer acquires images from thirty individual rice seedlings grown in test tubes. Two different digital cameras acquire images and an acquisition interval can be set up freely for 2 minutes. Using this HIRIS image capturer, a series of approximately 2,000 growth sequences were automatically obtained for about one week per each seedling. From these image sequences we measured precise plant size and growth rates promptly using the HIRIS image analyzer, demonstrating that the photoinhibiton of revolving movement is strongly related to the photoinhibiton of extension growth in etiolated rice seedlings. This work was supported by a grant of Rice Genome Project (SY-1108).
