Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Native Bioagents Influence the Soil Properties-Correlation of the Effect of Native Trichoderma, Pseudomonas and Bacillus on Soil Properties and the Resulting Reduction in Stem Rot Disease of Rice

Sowmya V
,
Maruthi P
,
Gobinath R
,
Uma Devi G
,
Santhosha Rathod
ORCID logo ,
Rajanikant P
,
Srivalli CH
,
Kannan Chinnaswami
* ORCID logo ,
Sumit Kumar
ORCID logo ,
Tatiana Minkina
ORCID logo ,
Estibaliz Sansinenea
ORCID logo ,
Chetan Keswani
* ORCID logo
Version 1 : Received: 27 June 2023 / Approved: 28 June 2023 / Online: 28 June 2023 (09:49:34 CEST)

A peer-reviewed article of this Preprint also exists.

Vanama, S.; Pesari, M.; Rajendran, G.; Gali, U.D.; Rathod, S.; Panuganti, R.; Chilukuri, S.; Chinnaswami, K.; Kumar, S.; Minkina, T.; Sansinenea, E.; Keswani, C. Correlation of the Effect of Native Bioagents on Soil Properties and Their Influence on Stem Rot Disease of Rice. Sustainability 2023, 15, 11768. Vanama, S.; Pesari, M.; Rajendran, G.; Gali, U.D.; Rathod, S.; Panuganti, R.; Chilukuri, S.; Chinnaswami, K.; Kumar, S.; Minkina, T.; Sansinenea, E.; Keswani, C. Correlation of the Effect of Native Bioagents on Soil Properties and Their Influence on Stem Rot Disease of Rice. Sustainability 2023, 15, 11768.

Abstract

Soil is a crucial component for plant growth, as it provides water, nutrients, and mechanical support. Various factors, such as crop cultivation, microflora, nutrient addition, and water availability, significantly affect soil properties. Maintaining soil health is important, and one approach is the introduction of native organisms with multifaceted activities. In this study, the effects of four native microbes (Trichoderma asperellum strain TAIK 1, Bacillus cabrialesii strain BIK3, Pseudomonas putida strain PIK1, and Pseudomonas otitidis strain POPS1) and their consortia on soil health, plant growth, and the incidence of stem rot disease caused by Sclerotium oryzae in rice are evaluated. Upon bioagent treatment of soil through seed treatment or soil application, variations in chemical properties of the soil were observed, viz., pH, Electrical Conductivity (EC), Organic Carbon (OC), available Soil Nitrogen (SN), Soil Phosphorus (SP), Soil Potassium (SK), and soil enzymes (urease, acid and alkaline phosphatase, dehydrogenase), compared to untreated soils. The treated seeds with the consortia of four native bioagents resulted in a significant increase in plant height (39.16%), number of panicles (30.29%), and average grain yield (41.36%) over control plants. Under controlled conditions, the bioagents-treated plants showed a 69.37% reduction in stem rot disease. The findings of this study indicate a positive correlation between soil properties and plant growth as well as a highly negative association with stem rot disease severity. The results suggest that using native bioagents as a management strategy can control stem rot disease and enhance crop productivity while reducing reliance on chemical interventions. These findings provide valuable insights for the development of sustainable agricultural practices that promote soil health, plant growth, and disease management.

Keywords

Trichoderma; Bacillus; Pseudomonas; Soil health; Sclerotium oryzae; Rice

Subject

Biology and Life Sciences, Agricultural Science and Agronomy

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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