抄録
In order to determine the effect of size of seed removed seed coat, variety, and crop year on the mineral composition, the potassium, phosphorus, magnesium, and calcium content was determined in 12 varieties in 1970 and 13 varieties in 1971 at the experimental field. The variety, as compared with the size of seed, was more influential on all the mineral content on dry basis and in ash. When the size of seed decreased, however, the calcium content on dry basis and in ash increased. On the effect of variety and crop year, the magnesium and calcium content on dry basis and the calcium content in ash were influenced by both of them and the phosphorus in ash by the latter. On 100 seeds on dry basis, the content of minerals was decreased with the decrease of size of seed.
