Management of Post Harvested Paddy Crop Residues by Aspergillus Species for Sustainable Agriculture

Authors

  • Raj Singh Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University) Mullana-Ambala, Haryana 133207, India
  • Sushil Kumar Upadhyay Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University) Mullana-Ambala, Haryana 133207, India
  • Komal Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University) Mullana-Ambala, Haryana 133207, India.

DOI:

https://doi.org/10.48165/

Keywords:

Aspergillus sp, Paddy crop residues, Biodegradation, Pectolytic, Lignolytic, Cellulolytic

Abstract

Rice, Oryza sp. (Angiosperm: Gramineae) is the main  staple crop in the World and 493 million tons of rice  was produced world-wide, which supposed to be a  source of main crop residue as per the report of IGC  (International Grain Council) during 2017-18.  Therefore, it was an urgent need to management of the  residue by the best suitable method i.e. biodegradation  using potent fungal species. The present study was  conducted to evaluate the potential mycobiota and  analyze the mechanism of action for the management  of post harvested crop residues for the sustainable  growth. The findings of the current investigation  reflected the pectolytic, lignolytic and cellulolytic  activities of Aspergillus species. The observed worked  out may also prove that these mycoflora played a key  role for biodegradation of paddy residues. During the  course of study a sum of nine fungal isolates were  recovered from paddy residues (semicompost  resource). Out of them, six isolates were selected on the  basis of their enzymatic activities against lignin, pectin  and cellulose constituents of paddy straw. All the six  fungal isolates like A. nidulans, A. wentii, A. tamarii, A.  fumigatus, A. flavous, and A. sydowii showed optimum  lignocellulolytic activities, which were further used for  in vitro decomposition of fresh paddy residue by the  application of 10ml sample as spray on two gram of  fresh paddy residue and incubated at 28 ± 1ºC for 30  days. At the end of 30 days experiment, the rate of  decomposition was measured by ADR (Absolute  decomposition rate) and RDR (Relative decomposition  rate). It was found that A. flavous showed highest ADR  and RDR; however, A. fumigatus represented the  lowest ADR and RDR. Thus, from the findings authors  are supposed to proposed and formulate a strategy for  sustainable management of paddy crop residues. The  practical application of the present study is assessed to  be a mile stone for the sustainable environment and  natural resources management to ecofriendly  agricultural activities and livelihood sustainability. 

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Published

2020-06-20

Issue

Vol. 35 No. 1 (2019): Bio-Science Research Bulletin (Jan-Jun) 2019

Section

Articles

How to Cite

Management of Post Harvested Paddy Crop Residues by Aspergillus Species for Sustainable Agriculture . (2020). Bio Science Research Bulletin, 35(1), 18–25. https://doi.org/10.48165/