Abstract
To finding out the characters as a good seedling, tobacco seedlings were grown under such various conditions as different nitrogenic fertilizers, light intensities or sugar spraying treatments, to obtain the seedlings which have various amounts of nitrogen, starch or sugars, and investigated the relations between their amounts of these and rooting potentiality or growth after transplanting. As the results, it was recognized that the rooting quantity of seedlings correlated significantly with the total sugar only, but their growth after transplanting did not only depend upon the rooting quantity but the nitrogen amounts of the seedlings as a starter. Consequently, the above facts reveal that a good seedling should have a large amount of water soluble sugars, as well as a good enough amount of nitrogen for a starter.
