Abstract: Treating the cultured anthers in early stage with mutagens ethyl methane sulphonate(EMS), 1-methyl-3-nitro-1-nitrosoguanidine (MNNG) and ethylene imide (EI), we observed an enhance in the formation of albino pollen plantlets with an decrease in the formation of green plantlets, and thus an obvious increase of the percentage of albinos in total plantlets, for instance, 34.9% in treatment of 2.5 ml/1 for 8 h. (26℃) on cultured anthers of variety 8126,compared with 6.7% of control. But even in this case, mutations in other characters was observed only in very few pollen plants. Albino seedlings also occurred in progenes of a few pollen plants, the frequency of its occurence in H2 strains was 100 times more than that in H3. The experimental results are available to the claim that the cause of albinos formation might be the losses of somc genes. The formation of more albino pollen plantlcts callqed by mutagens would give much difficulty to the attempt of producing mutants through in-ductive mutation on cultured pollens of rice.

Key words: causes, pollen, culture, chemical, plantets