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Fiji disease resistance in sugarcane: relationship to cultivar preference in field populations of the planthopper vector Perkinsiella saccharicida

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Dhileepan, K., Greet, A., Ridley, A., Croft, B.J. and Smith, G.R. (2003) Fiji disease resistance in sugarcane: relationship to cultivar preference in field populations of the planthopper vector Perkinsiella saccharicida. Annals of Applied Biology, 143 (3). pp. 375-379. ISSN 0003-4746

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Article Link: https://doi.org/10.1111/j.1744-7348.2003.tb00307.x

Abstract

Populations of the planthopper vector Perkinsiella saccharicida on sugarcane cultivars resistant (cvs QUO and Q87), moderately resistant (cvs Q90 and Q124) and susceptible (cvs NCo310 and Q102) to Fiji disease with known field resistance scores were monitored on the plant (2000–2001) and ratoon (2001–2002) crops. In both crops, the vector population remained very low, reaching its peak in the autumn. The vector population was significantly higher on cultivars susceptible to Fiji disease than on cultivars moderately resistant and resistant to Fiji disease. The number of P. saccharicida adults, nymphs and oviposition sites per plant increased with the increase in the Fiji disease susceptibility. The results suggest that under low vector density, cultivar preference by the planthopper vector mediates Fiji disease resistance in sugarcane. To obtain resistance ratings in the glasshouse that reflect field resistance, glasshouse-screening trials should be conducted under both low and high vector densities, and the cultivar preference of the planthopper vector recorded along with Fiji disease incidence.

Item Type:Article
Subjects:Plant pests and diseases > Individual or types of plants or trees > Sugarcane
Plant pests and diseases > Pest control and treatment of diseases. Plant protection
Live Archive:28 Jan 2024 23:37
Last Modified:28 Jan 2024 23:37

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