Abstract
The velocity of glycolysis of available substances to rooting on the chilled seedling in dark and low temperature of 5°C preseuted intervarietal differences among rice varieties. One of the varieties investigated showed a very high speed of glycolysis, especially of the phosphorolysis of starch, and was able to develop new roots, while, the others showed slow glycolysis. The intervarietal difference seemed to be partly due to the specialization of phosphorylase activity, which should appear again in microsporocytes under low temperature and control the starch formation receiving g-l-p from tapetal cells.
