Improving Profitability and Livelihood of Rice Farmers by Adopting an Integrated Disease Management (IDM) Approach for Blast and Sheath Blight Disease in Guyana

Rajendra Persaud, Mahendra Persaud, Nizam Hassan, Homenauth Oudho and Duraisamy Saravanakumar

Farm and Business - The Journal of the Caribbean Agro-Economic Society, 2021, vol. 13, issue 01

Abstract: The profitability of rice production in Guyana has been adversely affected by two major diseases viz. blast (Pyricularia oryzae) and sheath blight (SB) (Rhizoctonia solani). To overcome these threats, it is necessary to develop and adopt an IDM approach. A study was carried out: to identify blast and SB resistant genotypes; to study the efficacy of plant extracts, bioagents and new generation fungicides against these disease. Of 103 rice lines, 11 showed highly resistant to resistant reactions to blast. Genotype FL-127 consistently expressed high blast resistance. Likewise, FG12-56 and GR1631-35-16-1-2-1-1 recorded immune to resistant reactions and 12 other exhibited very resistant to resistant reactions to SB. Plant extracts of Black sage 10%, Bael 15% and Madar plant 5% reduced blast infection in field experiments; likewise extracts of Lemon grass and Thick leaf thyme 15% reduced SB under field conditions. The bioagent, Bacillus cereus OG2L and B. subtilis OG2A significantly reduced blast; while B. cereus OG2L effectively reduced SB. The fungicides, Antracol 70WP and Nativo 75 WG showed superior control against blast; while the same 2 fungicides along with Serenade 1.34 SC showed high control of SB disease. These treatments also showed positive influence in growth and increase in yield of rice.

Keywords: Crop; Production/Industries (search for similar items in EconPapers)
Date: 2021
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/312446/files/F ... %20Saravanakumar.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:fabtho:312446

DOI: 10.22004/ag.econ.312446

Access Statistics for this article

More articles in Farm and Business - The Journal of the Caribbean Agro-Economic Society from Caribbean Agro-Economic Society Contact information at EDIRC.
Bibliographic data for series maintained by AgEcon Search ().