Studies of potato apical leaf curl virus disease in potato

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dc.contributor.advisorGupta, Anil
dc.contributor.authorManoj kumar
dc.date.accessioned2016-09-21T13:35:54Z
dc.date.available2016-09-21T13:35:54Z
dc.date.issued2014
dc.description.abstractThe experiment entitled “Studies of potato apical leaf curl virus disease in potato” was conducted at Research Area Department of Vegetable Science, Chaudhary Charan Singh Haryana Agricultural University, Hisar during Rabi season of 2012-13 and 2013-14. Potato is an important staple food of the world and has potential of much needed nutritious food. The potato apical leaf curl virus disease (PALCVD) infected plants exhibited symptoms such as vein clearing, crinkling, vein thickening, upward curling of leaf margin and leaf margin became wavy. In the present study, all the seven varieties viz., Kufri Pushkar, Kufri Bahar, Kufri Pukhraj, Kufri Badshah, Kufri Khyati, Kufri Surya and Kufri Sadabahar were vectored by whitefly attack, for potato apical leaf curl virus disease (PALCVD) incidence. The correlation between whitefly population on all varieties and weather parameters like maximum and minimum temperature and evening relative humidity and wind speed were the more contributing which predicted the vector populations. Per cent incidence of PALCVD differ from variety to variety. Per cent disease incidence was found to range to 0.00 to 100% depending upon the varieties. Variety Kufri Khyati showed maximum disease incidence up to 100% followed by Kufri Pukhraj (60%). There was no disease incidence in Kufri Bahar variety. In biochemical analysis it was found that the roles of biochemicals total phenol, flavanols, peroxidase, and tannin play an important role in defence mechanism in potato crop for PALCVD. All the biochemical parameters showed that the content were more in resistant variety (Kufri Bahar) less in moderately resistant variety (Kufri Pushkar) and least in susceptible variety (Kufri Khyati). It was also inferred from the study that within the variety the diseased leaves had more biochemical content than healthy leaves except in Kufri Bahar (resistant) variety, which had no visible symptoms. Three hundred ten potato germplasm lines were screened in the field under artificial disease stress conditions against PALCVD of potato. Three lines Kufri Bahar,CP 1458 and HIS 98-55 were found resistant to the disease while 137 entries was categorized under moderately resistant group.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/78017
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subPlant Pathology
dc.subjectPotato, Kufri, Whitefly, Temperature, Relative humidity, PALCVD, Biochemical, Grermplasm lines.en_US
dc.these.typeM.Sc
dc.titleStudies of potato apical leaf curl virus disease in potatoen_US
dc.typeThesisen_US
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