Abstract
The study was conducted to investigate the effect of shading treatment on the uniform primordium formation and development of fruit body during incubation of major cultivated oyster mushrooms (Pleurotus ostreatus). Oyster mushrooms cultivars Suhan No. 1 and Gonji No. 7 were incubated while shading during different times in the incubation room wherein temperature of $20^{\circ}C$ was maintained. Substrate temperature during incubation was increased to $24{\sim}25^{\circ}C$ in 11~12 days for Suhan No. 1 and to $25{\sim}26^{\circ}C$ in 11~12 days for Gonji No. 7 regardless of shading times. The $CO_2$ generation was the highest as 9~11% for Suhan No. 1 and 9~10% for Gonji No. 7 at the time of temperature increase the highest, while $O_2$contents became decreased, thus constructed good environment for the growth of hyphae. Therefore, ratio of ununiformal primordia formation was reduced by 20% as against control for Suhan No. 1 and by 13% for Gonji No. 7 when shading was applied from $10^{th}$ day of inoculation with no difference in fruit body yield.
느타리 주요 재배품종의 균사배양중 차광처리가 발이 균일도 및 생육에 미치는 영향을 조사한 결과는 다음과 같다. 배양중 수한 1호의 배지내 온도는 차광처리 시기에 관계없이 11~12일에, $24{\sim}25^{\circ}C$, 곤지 7호는 11~12일에 $25{\sim}26^{\circ}C$로 상승하였다. 온도가 가장 높게 상승되는 시점에서 수한 1호의 $CO_2$는 9~11%, 곤지 7호는 9~10% 발생되는 반면, $O_2$는 낮아지는 경향을 보여 균사생장에 좋은 조건이 이루어지고 있었다. 특히, 접종 후 배양 10일부터 차광 처리시 수한 1호는 무처리 대비 20%, 곤지 7호는 13%까지 발이 불균일이 감소하면서 발이 균일도가 가장 양호하였으며, 수량에도 차이가 없었다.
