Twenty National Uniform Wheat Yield Trials (NUWYT), Normal and 12 (NUWYT) rain fed varieties/ lines were evaluated for seedling bulk test to know the resistant, moderately resistant and susceptible wheat varieties/ lines. The germplasm of National Uniform Wheat Yield Trials (Normal) (2003-04) were screened against Rhopalosiphum padi L., bird cherry oat aphid at National Agricultural Research Centre, Islamabad. International Nuclear Information System (INIS)Īkhtar, N. For Permissions, please email: resistance in national uniform wheat yield trials against rhopalosiphum padi (L.) Published by Oxford University Press on behalf of Entomological Society of America. Secondarily, these results identify cultivars that are good candidates for use in breeding and genetic analyses of arthropod resistance genes in wheat. These findings are significant in that they have identified wheat cultivars currently available to producers, enabling the immediate improvement of tactics to manage R. MFA (S) 2248, Pioneer (S) 25R40, and 'Limagrain LS Wizard' exhibited tolerance expressed as significantly greater aboveground biomass. 'Pioneer (S) 25R40,' 'MFA (S) 2248,' 'Pioneer (S) 25R77,' and 'Limagrain LCS Mint' significantly reduced R. padi populations or tolerate the effects of R. This study identified cultivars of hard red and soft white winter wheat with R. padi-BYDV yield losses, and increase producer profits. padi can greatly reduce production costs and mitigate R. Cultivation of wheat cultivars resistant to R. padi and BYDV together reduce wheat yields by 30-40% in Kansas and other states of the U.S. The bird cherry-oat aphid ( Rhopalosiphum padi L.) is a global pest of wheat and vectors some of the most damaging strains of barley yellow dwarf virus (BYDV). Girvin, John Whitworth, R Jeff Rojas, Lina Maria Aguirre Smith, C Michael Resistance of Select Winter Wheat (Triticum aestivum) Cultivars to Rhopalosiphum padi (Hemiptera: Aphididae). Se estimaron longevidad, tasa intrÃnseca de crecimiento natural (r m, tasa neta de reproducción (R0, tiempo generacional medio (T, tiempo de duplicación (TD, y tasa finita de incremento (λ del pulgón de la avena en diferentes cereales. En el presente trabajo se estudió el efecto de diferentes cereales incluidos Triticum aestivum L., Ã-Triticosecale Wittm., Hordeum vulgare L., Hordeum distichum L., Avena sativa L. ( Homoptera: Aphididae es una de las principales plagas de numerosos cultivos de la región semiárida pampeana de Argentina. padi prefers beer barley for fast and healthy development over other cereal crops.El áfido Rhopalosiphum padi L. Therefore, it can be concluded from the present study that R. padi due to greater adult longevity (20.88 d, higher fecundity (41 nymphs female-1, higher intrinsic rate of natural increase (0.309 females female-1 d-1, lower doubling time (2.24, and lower nymphal mortality (22.2%. Results indicated that beer barley might be the most suitable food for R. padi among host plants were analyzed using pseudo-values, which were produced by Jackknife re-sampling. Differences in fertility life table parameters of R. Longevity, intrinsic rate of natural increase (r m, net reproductive rate (R0, mean generation time (T, doubling time (DT, and finite rate of increase (λ of the bird cherry-oat aphid on the different cereal crops were estimated. was studied in the laboratory at 24 ± 1 Â☌, 65 ± 10% RH and a 14:10 photoperiod. In the present study, the effect of different host plants, including Triticum aestivum L., Ã-Triticosecale Wittm., Hordeum vulgare L., Hordeum distichum L., Avena sativa L., and Secale cereale L. ( Homoptera: Aphididae is one of the main pests in a number of crops in the semiarid Pampas of Argentina. ( Homoptera: Aphididae sobre Diferentes Cereales de la Pampas Semiárida de Argentina en Condiciones de Laboratorioĭirectory of Open Access Journals (Sweden)įull Text Available The bird cherry-oat aphid Rhopalosiphum padi L. ( Homoptera: Aphididae on Different Cereal Crops from the Semiarid Pampas of Argentina under Laboratory Conditions Crecimiento Poblacional de Rhopalosiphum padi L. Population Growth of Rhopalosiphum padi L.
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