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Effect of Scrapping, Thinning and Harvesting Time on Yield and Yield Attributes of Oyster Mushroom (pleurotus Ostreatus)

A. J. Kakon
National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh.

Nirod Chandra Sarker
National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh.

Abdus Salam Khan
National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh.

Kamal Hossain
National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh.

Saleh Ahmed
National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh.

Abstract/ Executive Summary:

Effect of three management practices viz., thinning, harvesting and scrapping time on yield and yield attributes of Pleurotus ostreatus was investigated during the month of June to December 2009. Remarkable variation was found in yield as well as yield attributes of the mushroom. Cluster thinning of primordia from the open surface of spawn packet after 2 days of initiation gave the highest biological yield (78.88 g/packet) as well as economic yield (72.20 g/packet). The lowest yield was obtained from control (no thinning). Potential biological yield (137.80 g/packet) as well as economic yield (126.80 g/packet) were obtained from the packets harvested just after starting of splitting of one pileus in a packet and the yield was affected when the mushroom was collected after splitting the edges of all pileus. The highest biological yield (76.20 g/packet) as well as economic yield (70.20 g/packet) was obtained from the spawn packets scrapped after 12 hours of first harvest and the lowest yield was recorded under control where no scrapping was done. Most of the yield attributes showed similar results.

Keywords: Oyster mushroom, Scrapping, Thinning, Harvesting time, Yield

Location: National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka

Start Date: 01-06-2009

End Date: 31-12-2009

Program Area: Crop-Soil-Water Management

Commodity: Mushroom

Objectives:

To determine the scrapping time, thinning style and harvesting stage of Pleurotus ostreatus.

Methodology:

The experiment was conducted at National Mushroom Development and Extension Centre, Sobhanbag, Savar, Dhaka, Bangladesh during June to December 2009. The experiment was laid out in a completely randomized design with 4 replications. Data were collected from first two flushes. But, in case of scrapping effect study, data were collected fro m second and third flushes. Data on number of primordia initiation, number of effective fruiting body, biological yield, economic yield, length of stalk, diameter of stalk, diameter of pileus and thickness of pileus were recorded. Biological yield in g/500 g packet was recorded by weighing the whole fruiting bodies without removing the lower hard and dirty portion whereas economic yield was recorded by the removing of lower hard and dirty portion of fruiting bodies. Data were analyzed following standard method using the MSTAT-C computer program. Means were compared following Duncan’s Multiple Range Test using the same computer program.

Source of Information: Bangladesh J. Mushroom. 4 (1): 19-25, 2010 (June)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Remarkable variation was found in yield as well as yield attributes of the mushroom. Cluster thinning of primordia from the open surface of spawn packet after 2 days of initiation gave the highest biological yield (78.88 g/packet) as well as economic yield (72.20 g/packet). The lowest yield was obtained from control (no thinning). Potential biological yield (137.80 g/packet) as well as economic yield (126.80 g/packet) were obtained from the packets harvested just after starting of splitting of one pileus in a packet and the yield was affected when the mushroom was collected after splitting the edges of all pileus. The highest biological yield (76.20 g/packet) as well as economic yield (70.20 g/packet) was obtained from the spawn packets scrapped after 12 hours of first harvest and the lowest yield was recorded under control where no scrapping was done. Most of the yield attributes showed similar results.

Knowledge Management: Journal