Skip to main content
Log in

Efficacy of Cladosporium cladosporioides C24G as a Multifunctional Agent in Upland Rice in Agroecological Systems

  • Research
  • Published:
International Journal of Plant Production Aims and scope Submit manuscript

Abstract

The occurrence of diseases in rice, mainly rice blast (Magnaporthe oryzae), is the main cause of yield reduction, and it has been controlled with the abusive use of fungicides in the conventional production system. To produce rice in an agroecological system, some measures, such as biological control, facilitates the transition from one system to another. The biological agent C24G classified as Cladosporium cladosporioides has been isolated from the phylloplane of rice plants and is a potential antagonist to rice pathogens. The aim of this study was to verify the efficiency of C. cladosporioides C24G under field conditions, in an agroecological system. During two growing seasons, C. cladosporioides was tested in a randomized block design in 4 replicates. The treatments consisted of: microbiolized rice seeds with C. cladosporioides, plant sprayed (2 applications), microbiolized rice seeds with C. cladosporioides + plant sprayed (2 ap.), plant sprayed (8 ap.) and microbiolized rice seeds with C. cladosporioides + plant sprayed (8 ap.) and control (no microbiolization and no spray). We evaluated leaf and panicle blast severity, physiological parameters associated with gas exchange, and grain yield. Leaf and panicle blast suppression was up to 85.58% and 79.63% in growing season 2016/2017, respectively, and 83.06% and 74.98% in growing season 2017/2018. At growing season 2016/2017, we observed an increase of the following parameters: photosynthetic rate (A) of 70.99% and 53.52% and transpiration (E) of 22.98% and 59.73% at vegetative and reproductive stage respectively, stomatal conductance (gs) of 126.66% at reproductive stage, water use efficiency (WUE) was up to 55.29% at vegetative stage, biomass 34.56% and yield 51.30%. At the growing season 2017/2018, we observed an increase at the photosynthetic rate (A) of 29.71%, at reproductive stage, biomass, 89.40%, and yield, 34.19%. We conclude that the treatments, microbiolized rice seeds or plant sprayed, allows the insertion of C. cladosporioides into the agroecological system, facilitating the agroecological transition with considerable grain yield, and leading to a final product without residues.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1

Similar content being viewed by others

References

Download references

Acknowledgements

We thank EMBRAPA Rice and Beans and University of Brasília for supported this work and Coordination of Superior Level Staff Improvement-CAPES and the Brazilian National Council for Scientific and Technological Development-CNPq for financial support to the first author.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Marta Cristina Corsi de Filippi.

Ethics declarations

Conflict of interest

No content conflict of interest.

Electronic supplementary material

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 199 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chaibub, A.A., de Sousa, T.P., de Oliveira, M.I.S. et al. Efficacy of Cladosporium cladosporioides C24G as a Multifunctional Agent in Upland Rice in Agroecological Systems. Int. J. Plant Prod. 14, 463–474 (2020). https://doi.org/10.1007/s42106-020-00097-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s42106-020-00097-2

Keywords

Navigation