3.2 Further screening of selected Tibetan yeasts to control blue mold of pears
Results from further evaluation of six Tibetan yeasts, selected as reported in Section 3.1, are shown in Table 2. At the common concentration of the an- tagonist of 1×108 cells/ml, the yeast isolate RKZ1-5 exhibited a significantly higher biocontrol activity in terms of decay incidence than the other five yeast strains. As regards lesion diameters, almost all six yeasts displayed protection, but RKZ1-5 was still the best. Based on these results, the yeast R. mucilaginosa was selected for further study.