The effects of boron deficiency on the catalase (CAT) and peroxidase (POD) activities of rape (Brassica napus L.) parents and F 1 generations were studied by solution culture experiment. Boron deficiency decreased CAT activity in the leaves while increased CAT activities in the roots. Boron deficiency increased POD activity both in leaves and in roots. Boron high efficiency cultivar had higher CAT activity than Boron low efficiency cultivar. In most cases,CAT and POD activities of F 1 generations were among the activities of their parents.