Studies on the Varieties of the Sesmes Part 1

[摘要] (1) In this report, I studied on the various characters of many varieties of the sesames, in order to find the most suitable variety in Tokai district. (2) The sesames need about 100 days for ripening, and 10 days for germination, and their growth are slow until about one month afte gemination, but after then it becomes very rapidly and then slower again according as the ripening comes near. (3) They have indefinite inflorescence, threr are not so much differences in the flowering date between each variety, but in the ripening date there are remarkable differences, and some varieties ripe earlier about one week than the others. (4) The shape and size of leaves depend on variety. The leaves on the central part of a stem are larger than the leaves on the other parts of a same stem and also have large incision. (5) The type of plant are various. Some varieties have many branches, but the other have fewer or none of those branches. (6) Some varieties have one capsule (pod) on one node, some have two or three capsules and the length of inter-node is irregular. The numver of chamber in one capsule is four in some varieties and six or eight in the otheres and some times from four to eight on the same stem. It seems that there is a tendency that the variety having many chambers in one capsule is more productive. (7) According to this study, we can perhaps classify the sesames by the colour of its grain as follows: white sesame, yelow sesame, brown sesame, black sesame, each of them have many defferent characters.

[学科分类] 农业科学（综合）