An investigation on biochemical characters of the leaves and flower buds from cytoplasmic male sterile lines (CMS) and their maintainer lines(M) shows that the content of sugar in the big bud is the lowest in the three stages of flower development in the CMS,while the maintainer keeps increasing; The content of protein in the small bud is the highest in the three stages of flower development in the CMS, but in the M,it keeps rising at all times. The content of proline in the CMS is slightly decreased,whereas the M's reflects an increasing tendency during flower development.The specific activit...
