The biological efficiencies of promising Pleurotus spp. were evaluated. Pleurotus ostreatus, Pleurotus tuberregium,and Pleurotus sajor-cajuwere investigated at temperatures of 22oC, 20oC, and 18oC to determine their ability to adapt to temperatures that are likely to be found in subtropical regions. The experiment was conducted using a substrate comprising Popular sawdust 60% + cotton seed 20% + beet pulp 20% under a relative humidity of 65%. The results indicated that there were significant differences in terms of biological efficiency between the species: P. tuber regium 128.84% at 22oC, P. ostreatus 108.41% at 22oC, and P. sajor-caju is 80% at 20oC. The common temperatures at which all species showed the highest biological efficiencies were 22oC and 20oC. Therefore, the production of the evaluated species was equal to or surpassed biological efficiencies reported in tropical environments, thereby demonstrating a potential opportunity to adapt to tropical environments without compromising quality standards.

ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DISCUSSION
CONCLUSION
ACKNOWLEDGEMENTS
REFERENCES

• Javier Alejandro Trujillo Rugamas(National Center for Agricultural and Forestry Technology, La Libertad, El Salvador)
• Kyong Jin Min(Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA, Eumseong, Chungbuk 27709, South Korea)
• Hye Sung Park(Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA, Eumseong, Chungbuk 27709, South Korea)
• Tai Moon Ha(Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA, Eumseong, Chungbuk 27709, South Korea)
• Eun Ji Lee(Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA, Eumseong, Chungbuk 27709, South Korea) Corresponding author