Growth and yield of oyster mushrooms (Pleurotus spp.) on organically amended agro wastes

Julie I. Elizabeth, T. Paul
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Abstract

The present experiment was conducted to identify the best organic amendment on the growth and yield of five species of oyster mushrooms viz.,Pleurotus florida, P. sajor-caju, P. eous, P. tuber-regium and Hypsizygus ulmarius by using organic amendments like rice bran, dry azolla, Neem cake, vermiwash and dry biogas slurry at three different concentrations. The effect of organic amendments on the number of days for sporophore formation, number and weight of sporophores varied according to the mushroom species. Results revealed that except dry biogas slurry, all organic amendments had superior effect in reducing number of days for sporophore formation, increasing the number of sporophores and yield. Effect of organic amendments on the yield of oyster mushrooms showed that all organic amendments except dry biogas slurry performed well with more number and weight of sporophores. The number of days for sporophore formation varied between 16.5 to 20.8 days in P. eous, 19.5 to 39 days in P. tuber-regium and 17.5 to 36.8 days in H. ulmarius. In P. florida and P. eous highest yield of 350.3g and 379g, respectively obtained from paddy straw amended with 1 per cent Neem cake. P. sajor-caju gave the maximum yield of 405.3g in 5 per cent rice bran. The maximum yield of 134.8g was recorded in P. tuber-regium when treated with 4 per cent rice bran whereas paddy straw amended with 6 per cent dry azolla gave highest yield of 218.3g in H. ulmarius.
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有机改性农业废弃物上平菇(Pleurotus spp.)的生长和产量
本试验以米糠、干绿豆、印楝饼、蚯蚓洗和干沼液为有机添加剂,确定了3种不同浓度有机添加剂对5种平菇(Pleurotus florida、P. sajor-caju、P. eous、P. tuberr -regium和Hypsizygus ulmarius)生长和产量的最佳影响。有机改良剂对菌种孢子囊形成天数、孢子囊数量和重量的影响各不相同。结果表明,除干燥沼液外,所有有机改进剂在减少孢子形成天数、增加孢子数量和产量方面均有较好的效果。有机改进剂对平菇产量的影响表明,除干沼液外,所有有机改进剂对平菇孢子囊数量和重量均有较好的影响。孢子形成的天数在鹅毛豆的16.5 ~ 20.8 d之间,在鹅毛豆的19.5 ~ 39 d之间,在鹅毛豆的17.5 ~ 36.8 d之间。在佛州和美洲的最高产量分别为350.3g和379g,稻秆中添加1%的印楝饼。在5%的米糠条件下,其产量最高可达405.3g。稻糠用量为4%时,黑麦草产量最高,达134.8g,稻秆用量为6%时,黑麦草产量最高,达218.3g。
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