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ThesisItem Open Access Evaluation of wheat and paddy straw based growing medium on the agronomical, morphological, and nutritional parameters of Lentinula edodes (Berk.) Pegler(G.B. Pant University of Agriculture and Technology, Pantnagar, District Udham Singh Nagar, Uttarakhand. PIN - 263145, 2022-08) Bisht, Chandan; Mishra, S.K.Lentinula edodes (Berk.) Pegler is an edible and medicinal mushroom that is very popular in traditional South Asian Medicine and used to treat different human ailments including strengthening the immune system. In the world, both production and consumption of Lentinula edodes are increasing proportionately day by day due to the increase in the demand for food and medicine and hence, received the privilege of the first rank with 7.89 million tons of production. In India, it generally grows on wheat straw, but its rising cost making Lentinula crop unremunerative while, on the other hand plenty of paddy straw is available at a much cheaper rate. Therefore, 10 strains- Le-21-01, Le-21-02, Le-21-03, Le-21-04, Le-21-05, Le-21-06, Le-21-07, Le-21-08, Le-21-09 and Le-21-10 as well as the growing media made of wheat (GM 1) and paddy straw (GM 2) were selected for the present study. The spawn run and cropping period of Le-21-02 was completed very shortly within 38 days, Whereas its full harvest period was maximum of 108 days, respectively on the GM 1. However, Le-21-06 respond a minimum of 58 days to first harvest, highest 90.44% BE, and a maximum 75.43 g average fruit body weight was recorded with the same growing media GM 1. The pilus diameter, stipe length, and stipe thickness of the fruitbodies of Le-21-06 were also found excellent with 14.7, 7.34 and 1.9 cm respectively in the same growing media. Therefore, the above parameters of the study undoubtfully kept Le-21-06 upsides than other strains, hence being selected for the nutritional and GC-MS based study. Along with the above observations, the effect of both the growing media was also evaluated with the results that GM 1 was found more or less superior to GM 2 for most of the selected agronomical and morphological parameters. In case of nutritional observations taken with Le-21-06, GM 1 also represented the highest moisture (86.16%), carbohydrate (76.40%), crude fiber (2.22%), potassium (3.06%), and energy value (388.08 Kcal/gm). While GM2 was known best with protein (17.80%) and ash (7.30%) and both respond equally to fat and phosphorus content. Moreover, GM 1 was also encouraged to produce the highest 34 numbers of aromatic compounds from the fruiting bodies of Le- 21-06 compared to the 18 numbers of aromatic compounds observed from the same strain of GM 2. Four volatile compounds- Diethylamine, 3-Methyl-2-buten-1-ol, Hexamethylcyclotrisiloxane, and Hexyl formate were found identical with their names and molecular weights in the GC-MS study. Therefore, as a conclusion of the above study, it would be appropriate to say that there is a need to further improve the nutrition prepared from paddy straw so that the production of Lentinula edodes can be increased to the maximum with least cost.
