Optimum CO₂ Concentration for Fruit-body Formation and Yield of Pleurotus ferulae Mushroom in the Growing Facilitiy for Bottle Cultivation
2010
Won, S.Y., Horticultural Industry Research Div., GARES, Hwaseong, Republic of Korea | Jang, M.J., Mushroom Research Institute, GARES, Kwangju, Republic of Korea | Ju, Y.C., Mushroom Research Institute, GARES, Kwangju, Republic of Korea | Lee, Y.B., The University of Seoul, Seoul, Republic of Korea
The effects of CO₂ concentration on fruit-body formation and yield of Pleurotus ferulae (KME65003) mushroom were examined in the growing facilities for bottle cultivation. The CO₂ concentration levels in the growing facilities were 500 ppm, 1000 ppm, 1500 ppm and 2000 ppm of CO₂, controlled by different ventilation amount. Yield of fruit body was highest of 102.4 g/bottle at 1000 ppm treatment and lowest of 75.1 g/bottle at 2000 ppm. As the CO₂ concentration increased up to 2000 ppm, the first pinhead formation and fruit-body growing period took longer, so total growing period took 16 days at 500 ppm, but 23 days at 2000 ppm. The number of pinhead formation was highest of 12.2/bottle at 1500 ppm and valid stipes was highest of 2.8/bottle at 1000 ppm. Fruit body characteristics such as pileus and stipe diameter, and stipe length were not significant at different CO₂ concentration. The fruit body ratio of 20~50 g range among the whole fruit body which was classified by weight was highest of 60.3% at 1000 ppm. As a result, the suitable CO₂ concentration of growth and yield of Pleurotus ferulae was showed as 1000 ppm.
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