Identifying aphid resistance in the ancestral wheat
2021年6月29日 · Wheat is an economically, socially, and nutritionally important crop, however, aphid infestation can often reduce wheat yield through feeding and virus transmission. Through field...
Genetic Resources of Cereal Crops for Aphid Resistance - PMC
An analysis of resistance of 26 wheat accessions to the Russian wheat aphid and greenbug revealed a difference in the genetic systems that control the three types of insect resistance. Moreover, it was established that the development duration and aphid fecundity (i.e., manifestations of antibiosis) are also controlled by different genes [ 26 ].
Comparative resistance of wheat genotypes to aphid infestation …
2024年6月1日 · By systematically evaluating and comparing the resistance levels of various wheat genotypes to aphids’ infestation under different sowing date scenarios, this study seeks to identify genotypes that consistently exhibit high levels of resistance to aphid infestations.
A review on identification characters and IPM of wheat aphid by …
2024年2月16日 · Aphids are a significant insect pest of wheat, causing crop injury by sucking cell sap, releasing honeydew, interfering with the photosynthetic activities of the crop, and transmitting pathogenic viruses. In the present study identification of wheat, aphid species and assessment of IPM modules for aphid management have been worked out.
Breeding for Aphid Resistance in Wheat: Status and Future …
2022年3月27日 · The chapter will cover host plant resistance mechanism against aphids in wheat based on biochemical, genetic and physiological parameters and progress made towards identification of resistant donors. Besides, challenges in breeding wheat varieties for aphid resistance and potential of transgenic in aphid resistance programme are also discussed.
Landscape structure alters the abundance and species …
2019年1月1日 · Aphid population abundance was positively correlated with noncrop habitats in the agricultural landscape and this relationship could be ascribed to aphid overwintering ecology, as cereal aphids usually lay eggs for the overwintering generation on a variety of grasses or perennial woody plants (Wratten, 1975; Hand, 1989; Leather, 1993 ...
Fast developing Russian wheat aphid biotypes remains an
2020年12月30日 · Males develop during autumn so that eggs can be produced for the overwintering period. However, in many temperate regions, D. noxia only reproduces asexually. Wings are formed for dispersal to new favourable environments (a). Aphids find refuge against predation and insecticide contact in rolled leaves (b,e).
Change in Biotypic Diversity of Russian Wheat Aphid (Hemiptera ...
2015年3月4日 · Moreover, noncultivated grasses maintain Russian wheat aphid populations into the fall and enable a critical phase of the Russian wheat aphid holocycle when sexual morphs occur, mate, and produce overwintering eggs that hatch to produce a tremendous amount of new biotypic diversity in the spring (Puterka et al. 2012).
Aphid | Wheat & Small Grains | Washington State University
Aphids can be problematic pests in wheat. There are several species of aphids in wheat fields. These include the English grain aphid and the bird-cherry oat aphid. Different species have different life cycles. Aphids do little direct damage to wheat plants but can be problematic due to transmission of viruses.
Cyclical parthenogenetic reproduction in the Russian wheat aphid ...
Cyclical (CP) and obligate (OP) parthenogenesis enables aphids to both adapt to changing environments and exploit host resources. We documented these forms of reproduction for Russian wheat aphid in wheat and wild grasses in the Central Great Plains and Rocky Mountain regions during falls 2004-2009.