EFFECT OF pH LEVEL OF SUBSTRATES AND FREQUENCY OF WATERING ON THE GROWTH AND YIELD OF OYSTER MUSHROOM MUSHROOM MUSHROOM

Abstract

The experiment was carried out in mushroom research shade house of Olericulture Division, BARI, Gazipur, during the period from July, 2015 to December, 2015 to evaluate the effect of pH levels of substrates and frequency of watering on the growth and yield of oyster mushroom. Spawn of Pleurotus ostreatus 0 : Control 1 : 4.9, P : 5.8, P 4 : 6.1 and P 5 : 6.4 and frequency of watering 0 : Control, W : Im + 12 h, W 2 : Im + 18 h, W 3 : Im + 24 h, W 4 : Im + 30 h and W : Im + 36 h). The experiment was laid out in two factors Completely Randomized Design with three replications. Results revealed that most of the parameters showed the significant response due to different pH levels of substrate and watering frequency. For pH level of substrate, the treatment P 0 5 exhibited the better performance in respect of yield and yield contributing characters of mushroom. In case of watering frequency, the treatment W showed higher yield and positive effect on growth parameters as well as on yield parameters. The maximum number of effective fruiting bodies 0 W 1 . However, statistically the highest yield was obtained from the combined treatment of P 2 . So, this combination may be used for higher yield of mushroom