Abstract:
An experiment was conducted at National Mushroom Development and
Extension center at Savar, Dhaka during the period from October 2006 to
January 2007 with a view to determine the influence of line to line and
packet spacing on growth yield and quality of mushroom. Four levels of line
spacing viz. 14, 17, 20, 25cm and six levels of packet spacing viz. 10, 11, 13,
14, 17, 20 cm were taken as two factors of the experiment for the study. The
line spacing showed significant influence on the mushroom growth and pileus
shape and size. After that both mushroom growth and size of pileus did not
show significant variation at days after opening. Number of primordia per
packet was also significantly influenced by line and packet spacings. But the
Number of effecting Fruiting body, Diameter of pileus, Thickness of pileus,
Length of stalk, Diameter of stalk, Individual Fruiting body weight, yield per
packet and per square meter yield were significantly influenced by the line and
packet spacings. It was observed that wider line and packet spacings had better
response on growth, and quality per packet while closer line and packet
spacings showed higher yield per unit area. The interaction effect of line and
packet spacing had significant influence on yield and yield parameters. The
highest (11.7 kg or 11770 g) yield per unit area (sq.m) was recorded from the
combination of 14cm line and lOcm packet spacing which also did not perform
the highest benefit cost ratio. The highest (2.98) benefit cost ratio was found
from spacing 20cmx 1 lcm. While the lowest (l.91) BCR was obtained from the
spacing of 25cmx20cm spacing. Considering the yield of mushroom per square
meter, cost of production, benefit cost ratio and net
retum,the20cmx 11 cmspacin appeared to be recommendable for the cultivation
ofOyester mushroom in Bangladesh.
