| life-history parameters of the colorado potato beetle, leptinotarsa decemlineata, on seven commercial cultivars of potato, solanum tuberosum. | the colorado potato beetle, leptinotarsa decemlineata (say) (coleoptera: chrysomelidae), is an important pest of potato, solanum tuberosum l. (solanales: solanaceae), crops in the ardabil region of iran. in this research, the life-history parameters of l. decemlineata were investigated on seven potato cultivars, namely agria, aozonia, diamant, cosmus, kondor, morene, and savalan, in a greenhouse at 23 ± 1° c and 55 ± 5% rh under a natural photoperiod. the results indicated that the development t ... | 2013 | 24794138 |
| determination of the races of potato virus x and its host rang in karaj, damavand and ardabil, iran. | potato virus x (pvx) is found commonly in potato-growing areas, worldwide. it is an economically important virus which causes losses in tuber yield of approximate 5 to 15 percent. in a 2 year survey, potato leaf and tuber samples were collected from various fields in damavand and karaj. the initial isolations from potato were made by mechanical inoculation first to gomphrena globosa l. and later to dartura stramonium l. it was not transmitted by 2 species of cuscuta but transmitted mechamically. ... | 2005 | 16637211 |
| purification of potato virus x and preparation of its antiserum. | potato virus x (pvx) isolated from the potato leaf and tuber samples which were collected from various fields in damavand and ardabil. the initial isolations of the virus were made from potato by mechanical inoculation on gomphrena globosa l. and chenopodium spp. that produce local lesion, and then it causes mosaic on nicotiana spp. and datura stramonium l. an isolate of the virus inoculated to nicotiana glutinosa l. and it was maintained throughout the work. sap from infected n. glutinosa was i ... | 2005 | 16637210 |
| determination of yield stability in advanced potato cultivars as affected by water deficit and potassium humate in ardabil region, iran. | this experiment was done on the three potato cultivars [agria (susceptible), satina (semi-tolerant) and ceaser (tolerant to water deficit)] and three irrigation treatments (after 30 mm evaporation from basin class a, after 60 mm evaporation + spraying by potassium humate, and after 60 mm evaporation from basin class a) for two locations in 2007. experimental design was split plot with three replications. potassium humate spraying (250 ml ha(-1)) were done in three stages of emergence, before tub ... | 2008 | 18817268 |