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Volume 7, Issue 1      January - March, 2019

Impact of okra yellow vein mosaic virus on the physiology of okra crop and its management
 

Muhammad Ahmad Zeshan1*, Yasir Iftikhar1, Safdar Ali2, Maryam Yousaf1, Nadeem Ahmed3,  Muhammad Usman Ghani4

1Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan

2Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan

3Department of Plant Pathology, Muhammad Nawaz Sharif University of Agriculture, Multan, Pakistan

4Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan

Abstract

Okra plants infected with okra yellow vein mosaic virus (OYVMV) were observed in the field for assessment of disease incidence and disease severity. Virus confirmation was done by whitefly inoculation, chip and leaf patch grafting. Electrolyte leakage and membrane stability index was calculated by recommended methods. The disease was managed by applying the mixture of buprofezin (0.001%), neem extract (0.005%) and citric acid (0.0003%). Parbhani kranti variety was most infected while Green wonder was less infected. More electrolytes leakage was recorded in infected plants while minimum in healthy plants. Neem extract was the more significant in reducing disease incidence by deterring the whiteflies from the okra crop. Citric also gave good results by repairing the plants cell damage and boosting the defense mechanism.

Keywords: Electrolyte, Geminivirus, Management, Okra, OYVMV, SAR, Whitefly

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