注記 |
This investigation has been made serodiagnostically, taking advantage of the nature of Proteids, to find the relationship between different varieties of rice, namely those of Japan Proper, those of China, and those native to Korea and Formosa. Six other Cereal Crops, Italian millet, Sawa millet, Maize, Corakan, Barley, and wheat have also been used ? for comparative study. In order to carry on these experiments, we have used rabbits as immune animals, and FORNET'S "Ringprobe" and MISAO'S "Absattigungsverfahren" for precipitin reaction. The results of our investigation are as follows: 1) Rice, Italian millet, Sawa millet, Corakan, Barley, Wheat have been clearly distinguished from each other by "Ringprobe" which has always been used. According to these results, these crops may be classified into three groups: (1) Rice (Oryza sativa, L.), Italian millet (Setaria italica, BEAUVOIS), Sawa millet (Panicum Crus-Galli, L.), Maize (Zea mais, L.). (2) Corakan (Eleusine Coracana, GARTNER). (3) Barley. (Hordeum sativum, JESS.), Wheat (Triticum sativum, LAM.). 2) Though the varieties of rice have not been distinguished one from another by "Ringprobe", they have been differentiated by "Absattigungsverfahren". Between the varieties of Japan Proper, China, and the native rices of Korea and Formosa, whichever immune-serum is employed, a clear difference has been found. In the case of the varieties of Japan Proper, red and scented rice have been differentiated from the ordinary varieties. However, there have been found almost no differences between paddy and upland rice as well as between glutinous, and non-glutinous varieties. The following varieties of Japan Proper, the Shinriki, Omachi, and Sekiyama, which used to be recognized as different in degree of improvement, could not be distinguished. Again long glumed rices could scarcely be discriminated from the others used.
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