Central Potato Research Institute Research Articles

Berry and True Potato Seed Production in Relation to Nitrogen Fertilization*

AbstractA field experiment was conducted at the Central Potato Research Institute, Shimla, in 1991 to ascertain the effect of nitrogen fertilization on berry and true potato seed production in two commercial cultivars. It was observed that the 100 seed weight of Kufri Jyoti and Kufri Lalima was significantly higher when higher doses of nitrogen (120 to 240 kg/ha) were applied. It was further found that 100 seed weight was not related to the berry size.

A New Mild Strain of Potato Spindle Tuber Viroid Isolated from WildSolanumspp. in India

A disease syndrome whose symptoms include stunting, leaf crinkling, and severe veinal necrosis was observed among four wild Solanum spp. maintained at the Central Potato Research Institute, Simla, India. Consistent with a possible viroid etiology, transfer of the infectious agent to tomato (Lycopersicon esculentum «Rutgers») produced symptoms that were indistinguishable from those induced by the mild strain of potato spindle tuber viroid (PSTVd), and dot blot hybridization analysis of infected plants using an RNA probe complementary to PSTVd yielded strongly positive reactions(.)

Mycoplasma-like Organisms in Plants affected with Purple Top-Roll, Marginal Flavescence and Witches'-Broom Diseases of Potatoes

Mycoplasma-like Organisms in Plants affected with Purple Top-Roll, Marginal Flavescence and Witches'-Broom Diseases of Potatoes

Variations in the Ability of Myzus persicae Sulz. to transmit Potato Viruses.

Journal of PhytopathologyVolume 71, Issue 3 p. 223-230 Variations in the Ability of Myzus persicae Sulz. to transmit Potato Viruses II. Virus Y1 G. C. Upreti, Corresponding Author G. C. Upreti Central Potato Research Institute, Simla-1, India.G. C. Upreti, B. B. Nagaich, Central Potato Research Institute, Simla-1 (H.P.), India.Search for more papers by this authorB. B. Nagaich, Corresponding Author B. B. Nagaich Central Potato Research Institute, Simla-1, India.G. C. Upreti, B. B. Nagaich, Central Potato Research Institute, Simla-1 (H.P.), India.Search for more papers by this author G. C. Upreti, Corresponding Author G. C. Upreti Central Potato Research Institute, Simla-1, India.G. C. Upreti, B. B. Nagaich, Central Potato Research Institute, Simla-1 (H.P.), India.Search for more papers by this authorB. B. Nagaich, Corresponding Author B. B. Nagaich Central Potato Research Institute, Simla-1, India.G. C. Upreti, B. B. Nagaich, Central Potato Research Institute, Simla-1 (H.P.), India.Search for more papers by this author First published: July 1971 https://doi.org/10.1111/j.1439-0434.1971.tb03159.xCitations: 5 1 This research has been financed in part by a grant made by the United States Department of Agriculture, Agricultural Research Service under P.L. 480. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Citing Literature Volume71, Issue3July 1971Pages 223-230 RelatedInformation

Reaction of some wild and cultivated potato varieties to charcoal rot

With a view to select potato varieties possessing resistance to charcoal rot, laboratory tests were carried out at the Central Potato Research Institute, Simla (India). Five hundred and twenty six clones comprising tuber-bearing species ofSolanum and varieties and hybrids of potato were screened for their reaction toMacrophomina phaseoli (Maubl.) Ashby. A high degree of resistance was observed in six clones ofSolanum chacoense and four hybrids withS. chacoense germ plasm, while moderate susceptibility was observed in another six clones ofS. chacoense, three clones ofSolanum tuberosum ssp.andigena and nineteen hybrids produced at the Institute.