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Interaction between Phytophthora infestans and potato viruses X and Y in potato

Published online by Cambridge University Press:  27 March 2009

A. Kalra ,
R. K. Grover ,
N. Rishi  and
S. M. P. Khurana
A. Kalra
Affiliation:
Haryana Agricultural University, Hisar 125004, India
R. K. Grover
Affiliation:
Haryana Agricultural University, Hisar 125004, India
N. Rishi
Affiliation:
Haryana Agricultural University, Hisar 125004, India
S. M. P. Khurana
Affiliation:
Central Potato Research Institute, Shimla 171001, India
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Summary

The interaction between Phytophthora infestans and potato viruses X (PVX) and Y (PVY) was studied in the potato cultivar Kufri Chandramukhi. Prior infection by PVX and PVY reduced the susceptibility of the plants to P. infestans. The reduction in susceptibility was more marked when leaflets were inoculated with P. infestans 72 h after inoculation with PVY. The same type of reaction was observed in whole plants when the interval between PVY and P. infestans inoculation was 30 days. No significant differences were observed when the sequence of inoculation was reversed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 112 , Issue 1 , February 1989 , pp. 33 - 37
Copyright
Copyright © Cambridge University Press 1989

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