抄録
Measuring the weight of the dry matter of leaves at various periods of growth, the cabon assimilation, the translocation of assimilates and the eespiration in the leaves of "Nori-Asa" (glutinous hemp). an amphidiploid crop raised between Abelmoschus esculentus and Abel. Manihot, were studied in comparison with those of the parents. The absolute weight of the dry matter in the leaves located at the upper and middle parts of the stem of "Nori-Asa" was smaller than those of the parents at the middle of July, but at the end of August, it was smaller in the latters than in the former. In each crop, the increase of the dry matter of leaves began at 6 a.m., and it continued in "Nori-Asa" and esculentus to 6 p.m., but in Manihot to 3 p.m., The maximum increase of the dry matter of leaves in each crop was met with at from 9 am to noon. The amount of the increase of the dry matter of leaves in the day time and also in a whole day was the largest in "Nori-Asa", and that in esculentus was larger than that in Manihot, except at the middle of July. On the translocation of assimilates and the respiration in the day time, in the night as well as in the whole day, no difference was found among each crop. The amount of carbon assimilation was found to be the largest in "Nori-Asa" at every period.
