Strategic Approaches for Outdoor Cultivation of Paddy Straw Mushroom (Volvariella volvacea) as Intercrop Under different Cropping Systems

Thiribhuvanamala G,Shwet Kamal,Kavitha C,Anil Kumar,Sharma V.P,Krishnamoorthy A S

doi:10.29321/maj.10.000486

Abstract

The present study aimed to selectpotential strainof Volvariella volvacea suitable for outdoor cultivation in different cropping systems like Banana, Maize, Coconut, Coconut+Banana where such suitable microclimate prevails. Among the different strains of V.volvaceatested, the strain Vv-19-06 obtained from Directorate of Mushroom Research, Solan,performed considerably superior with higher bioefficiency of 17.44 and sturdy sporophores at egg stage and storage life of 1.1 days under refrigerated condition.Moreover, the morphogenesis of button stage to matured mushrooms were extended up to 1.8 days and the opened mushroom were retained on the bed for another 1.6 days, which is an added advantage.Cultivation of paddy straw mushroom as intercrop in Banana, Maize, Banana+coconut and Coconut cropping systems proved successful with spawn running completion ranging from 8 to 10.3 days, pinhead formation ranging from 9.3 to 11.6 days and harvestable button/egg stage appeared ranging from 11 to 12.6 days. The bioefficiency was comparatively better in all the cropping systems, which ranged from 19.4 to 20.6 %, with a total cropping cycle of 20.5 to 22 days.The indoor cropping system, which requires additional cost for infrastructure, also recorded bioefficiecy of 21.3 in a cropping cycle of 17 days. In all the cropping systems tested, the B:C ratio worked out to be 1:2.3 to 1:2.5 as in indoor cropping system proving that paddy straw mushroomcould be promoted for the outdoor systemin Maize, Banana, Banana +coconut , Coconut cropping systems as intercrop as it fetches additional income to rice-growing farmers.

Highlights

The Paddy straw mushroom (Volvariella volvacea) or Chinese mushroom, well known for its pleasant flavor and taste, ranks sixth among cultivated edible mushrooms and contributes to about 5 to 6 % of world mushroom production (Ahlawat et al, 2011)
Though lot of attempts have been exploited in India (Su and Seth 1940, Thomas et al, 1943; Kandasamy and Ramasamy,1975,Pani and Naik,1998; Sangeetha, 2002, Ahlawat and Tewari,2007; Thiribhuvanamala et al, 2012), commercial cultivation of V.volvacea is still in infant stage because of weak colonization of the substrate by mycelium due to poor ligninolytic enzyme secretory system that leads to poor yields
Five different strains of Volvariella volvacea,Vv-19-01 to Vv-19-06were tested in comparison with TNAU strain of V.volvacea (PS1 collected from Repository culture collection centre of TNAU ) for yield performance in sunken blue polyhouses at TNAU where a temperature of 32 to 36oC and relative humidity of 80-85 % was maintained throughout the cropping period

Summary

Introduction

The Paddy straw mushroom (Volvariella volvacea) or Chinese mushroom, well known for its pleasant flavor and taste, ranks sixth among cultivated edible mushrooms and contributes to about 5 to 6 % of world mushroom production (Ahlawat et al, 2011). Chattisgarh has started the commercial cultivation of paddy straw mushrooms by small and marginal farmers This mushroom prefers paddy straw as the best substrate to give optimum yield through perusal of literature shows lot of substrates viz., Banana waste (Zikriyani et al, 2018) cotton waste and oil palm bunch waste (Thiribhuvanamala et al, 2012) prove promising whensubstituted along with paddy straw with a bioefficiency of 19.2 to 21.9 per cent

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Conclusion