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Effect of Wheat Bran and Rice Bran Supplements to Waste Paper and Wheat Straw Substrates on Growth and Yield of Oyster Mushroom ( Pleurotus Ostreatus (jacquin Ex Fr.) Kummer)

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

M.M. Hossain
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.

N. Sultana
Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.

I.H. Mian
Department of Plant Pathology,Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.

A.J.M. Sirajul Karim
Department of Soil Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh.

S.M. Ruhul Amin
National Mushroom Development and Extension Centre, Savar, Dhaka, Bangladesh

Abstract/ Executive Summary:

Two substrates, waste paper and wheat straw, were supplemented with wheat bran and rice bran separately at 50, 40, 30, 20, 10 and 0% levels and compared in respect of yield and yield contributing characters of oyster mushroom. The number of fruiting body, biological efficiency, biological yield and economic yield of oyster mushroom increased gradually with the increased levels of supplements up to 40% and started to decrease thereafter. The effect of wheat bran was more pronounced than rice bran and the highest economic yield (356.21 g/packet) was obtained from waste paper supplemented with 40% wheat bran. The highest benefit cost ratio (BCR) (10.42) was recorded at 40% wheat bran added to waste paper, which was followed by 30% of the supplement. The lowest BCR was obtained from waste paper when no supplement was used.

Keywords: Wheat straw, Waste paper, Wheat bran, Rice bran, Yield, Benefit cost ratio.

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

Start Date: 00-10-2003

End Date: 00-02-2004

Program Area: Knowledge Management

Commodity: Mushroom

Objectives:

To study the effect of the supplementation of wheat bran and rice bran to waste paper and wheat straw on yield and various yield contributing characters of oyster mushroom.

Methodology:

The experiment was conducted during October 2003 to February 2004. Waste paper and wheat straw were selected as the main substrates of the present study on the basis of their year round availability. The two different agricultural byproducts, wheat bran and rice bran, were tested at six different levels viz. 50, 40, 30, 20 and 10% (w/w) each to determine the best level for specific substrates . A treatment without any nutrient material was used as control. Moreover, blanket application of CaCO₃ (0.57% of total dry matter) was commonly used for all the treatment combinations. The experiment was laid out in a 2X2X6 factorial experiment in completely randomized design with 4 replications. The first factor was main substrates: waste paper and wheat straw; the second factor was supplements: wheat bran and rice bran and the third factor was level of the supplements viz. 0, 10, 20, 30, 40 and 50% (w/w). Data on growth, yield contributing characters and yield were collected and analyzed following Gomez and Gomez, 1984 using MSTAT-C computer programme.

Source of Information: Bangladesh J. Mushroom. 2(2): 1-15, 2008 (December)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results of the present experiment revealed that waste paper and wheat straw are two effective substrates to grow oyster mushroom. Between them wheat straw is better than waste paper to mushroom without addition of wheat bran or rice bran as supplement. Between two substrates, waste paper was more responsive than wheat straw to the supplements. Addition of supplements to waste paper reduced duration for completion for mycelium growth, primordia initiation and production of harvestable mushroom. Yield of mushroom and benefit-cost ratio increased significantly when waste paper was amended with the supplement. But the efficiency of wheat bran was higher than rice bran used to amend the waste paper. Biological yield, economic yield and benefit-cost ratio increased appreciably when waste paper was supplemented with wheat bran within the range of 10-40% levels. At 30 and 40% wheat bran added to waste paper gave maximum yield increase and benefit-cost was 10.13 and 10 .42. When wheat straw was amended by the supplements the rate of increase in yield BCR was 8.15 and 7.19 at 40 and 50% of wheat bran, respectively. Amendment of waste paper and wheat straw with rice bran gave BCR of 6.60 and 6.26, respectively at the highest level of the supplement. It indicated that wheat bran is more effective than rice bran to get better yield and BCR. Other types supplements may be searched to amend wheat straw.

Knowledge Management: Journal