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It is shown by the result of the dual-cultured experiment that the inhibitory rate of DZW-47 was 60.42%,and the inhibitory rates of R.solani by actinomyces ZLR-2 and ZLR-11 were 43.75% and 43.05%,lower than that of DZW-47.The inhibitory mycelia growth mechanism of different strains on R.solani was quite different,with DZW-3 mainly on the aspect of hyperparasitism, DZW-21 on the synergism of hyperparasitism and metabolite,DZW-47 on the synergism of nutrient competition and secondary metabolite,ZLR-2 and ZLR- 11 on producing secondary metabolite.Controlling efficiency of seedling bed accorded basically with that of the broth.The controlling efficiency of DZW-47,ZLR-2,ZLR-11,DZW-21 and DZW-3 were 97.20%,95.7%,94.6%,93.6% and 89.20%,respectively.
It was shown by the result of the dual-cultured experiment that the inhibitory rate of DZW-47 was 60.42%, and the inhibitory rates of R. solani by actinomyces ZLR-2 and ZLR-11 were 43.75% and 43.05%, lower than that of DZW-47. The inhibitory mycelia growth mechanism of different strains on R. solani was quite different, with DZW-3 mainly on the aspect of hyperparasitism, DZW-21 on the synergism of hyperparasitism and metabolite, DZW-47 on the synergism of nutrient competition and secondary metabolite, ZLR-2 and ZLR-11 on producing secondary metabolite. Controlling efficiency of seedling bed accorded substantially with that of the broth. The controlling efficiency of DZW-47, ZLR-2, ZLR-11, DZW- 21 and DZW-3 were 97.20%, 95.7%, 94.6%, 93.6% and 89.20%, respectively.