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'Lolium rigidum' 


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Field experiments were sown with alfalfa mosaic virus (AMV)-infected or healthy seed of burr medic (Medicago polymorpha) and grazed by sheep. Seed-infected plants acted as primary sources for virus spread by naturally occurring aphids. Admixture[...]![]()
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P. Sunnucks ; D. Chisholm ; E. Turak ; D. Hales | 1998The aim of this study was to test whether host plant responses of Sitobion aphids have evolved under parthenogenesis and to examine the relationship between genetic and phenotypical similarity. There are four known chromosomal races of Australia[...]