Abstract
General practice in Bangladesh is, after harvest producers leave the non-effective fruiting body of milky white mushroom in the spawn packet as it is. But every fruiting body primordia take some nutrient from the substrate, and the dried & rotten primordia may encourage other competitive fungi or harmful microorganism to grow on the upper surface of the substrate which may affect the fruiting body formation and yield in the subsequent flushes. Therefore, the present study was under taken to know the effect of casing material management technique on yield and yield attributes of milky white mushroom. Five different casing material management technique were practiced in this experiment, such as T1= removal of dried non effective fruiting bodies after each harvest; T2= removal of dried non effective fruiting bodies and filling the casing hole with fresh casing material after each harvest; T3= scraping the upper surface of the substrate after each harvest; T4= scraping the upper surface of the substrate and adding 10% fresh casing material after each harvest; and T5= no disturbance of the casing material (control). Number of effective fruiting body (NEFB), number of flushes, days to total harvest and size of fruiting body were significantly affected by casing material management technique but economic yield and biological efficiency among the treatments were insignificant. Considering all the parameters removal of dried non effective fruiting bodies and filling the casing hole with fresh casing material after each harvest (T2) was the best technique for casing material management.
Highlights
Casing is an important cultural practice of milky white mushroom cultivation
Five different casing material management techniques were practiced in this experiment such as T1= removal of dried non effective fruiting bodies after each harvest; T2= removal of dried non effective fruiting bodies and filling the casing hole with fresh casing material after each harvest; T3= scraping the upper surface of the substrate after each harvest; T4= scraping the upper surface of the substrate and adding 10% fresh casing material after each harvest; and T5= no disturbance of the casing material
Number of effective fruiting body (NEFB), number of flushes and days to total harvest of milky white mushroom was significantly affected by casing material management technique (Table-1)
Summary
Casing is an important cultural practice of milky white mushroom cultivation. Casing the surface of composted substrate fully colonized by mycelium of mushroom is an essential function in stimulation and promoting the development of fruit bodies (Farsi et al., 2011). Effect of Casing Material Management on Yield and Yield Attributes of Milky White Mushroom (Calocybe Indica) affecting the yield. After complete mycelia formation casing is done to provide a reservoir of water for the developing fruiting body. Milky white mushroom produces numerous fruiting body primordia during first flush and decreases in the following flushes. General practice in our country is, after harvest producers leave the non-effective fruiting body in the spawn packet as it is. The present study was under taken to know the effect of casing material management on the yield and biological efficiency of milky white mushroom
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