Author:
Venkatesh K.,Jeyarani S.,Murugan M.,Kavitha P.,Venkatachalam R.,Suresh K.,Prakash K.
Abstract
Screening 375 cassava genotypes at Tapioca and Castor Research Station, Salem, India against whitefly, Bemisia tabaci (Gennadius) revealed eight highly resistant genotypes namely, Me 743, Me 650, Me 637, Me 739, Me 148, Me 874, Me 25, and Me 707, maintaining fewer than 20 insects/plant across crucial growth stages (3-6 months after planting). Trichome analysis revealed prevalent non-glandular, simple, single-celled elongated or irregular-shaped structures. Correlation studies between whitefly incidence and trichome density indicated a positive relationship (0.39) without statistical significance, emphasizing the role of trichomes in conferring resistance. India’s cassava genetic diversity holds significant promise in the creation of resistant variety.
Publisher
The Entomological Society of India
Reference24 articles.
1. Abraham A. 1956. Tapioca cultivation in India. Indian Council of Agricultural Research.
2. Agricultural and Processed Food Products Export Development Authority, 2022. https://agriexchange.apeda.gov.in/India%20Production/India_Productions.aspx.
3. Avery P B, Kumar V, Simmonds M S, Faull J. 2015. Influence of leaf trichome type and density on the host plant selection by the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae). Applied Entomology and Zoology 50: 79-87.
4. Barilli D R, Wengrat, APGD S, Guimaraes A T B, Pietrowski V, Ringenberg R, Garcia M S. 2019. Resistance of cassava genotypes to Bemisia tuberculata. Arthropod-Plant Interactions, 13: 663-669.
5. Basit M. 2019. Status of insecticide resistance in Bemisia tabaci: resistance, cross-resistance, stability of resistance, genetics and fitness costs. Phytoparasitica 47(2): 207-225.