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In this ppaer, it was presented that after Gibberellin produced strains were irradiated with He Ne laser for 10～15 minutes, high yield strains, obtained by continuous screening, increased potency (unit) by over 110% than that of control strains. More high yield strains were also obtained by the combined treatment with He Ne laser and LiCl. The mutagenic effects were more exciting because of potency improvement rate reached 189.6%. It seemed that the effect of the combined treatment was better than that of the single one. The experimental results indicated that is important to choose suitable wavelengths dosages and power density of laser and mutagenic condition for obtaining high yield strains.
In this ppaer, it was presented that after Gibberellin produced strains were irradiated with He Ne laser for 10 ~ 15 minutes, high yield strains, obtained by continuous screening, increased potency (unit) by over 110% than that of control strains. More high The yieldage were also obtained by the combined treatment with He Ne laser and LiCl. The mutagenic effects were more exciting because of potency improvement rate reached 189.6%. It seemed that the effect of the combined treatment was better than that of the single one. The experimental results indicated that is important to choose suitable wavelengths dosages and power density of laser and mutagenic conditions for obtaining high yield.