Rhodes eResearch Repository (2.508 recursos) Repository of the academic and research output of the Rhodes University community.
Mostrando recursos 1 - 3 de 3
1. Resistance or tolerance: An examination of aphid (Sitobion yakini) phloem feeding on Betta and Betta-Dn wheat (Triticum aestivum ) - De Wet, L.R.; Botha, C.E.J. In this study, we examined the effects of aphid feeding on Russian wheat aphid-resistant and -susceptible cultivars of wheat (Triticum aestivum L.); Betta-Dn and Betta, respectively, by the grass aphid, Sitobion yakini (Eastop). In each case, we examined the plants specifically for the formation of wound callose associated with the phloem, using aniline blue and fluorescence microscopy. (application/pdf) - 11-oct-2006
2. The Land Question in South Africa, Zimbabwe and Kenya: a Geographical Perspective on Resource Endowment - Fox, R.C.; Rowntree, K.M. In sharp contrast to the debates concerning land policy, land tenure and sustainable resource management in South Africa is any input concerning the geographical distribution of land productivity. Furthermore, we will undertake our study in such a way that comparison can be made to Zimbabwe and Kenya where the land issue has been such a critical component of the post-colonial development process. (application/pdf) - 16-nov-2006
3. A few points on Pointfree pseudocompactness - Dube, T.; Matutu, P. We present several characterizations of completely regular pseudocompact frames. We follow with an embedding-type characterization stating that a completely regular frame is pseudocompact if and only if it is a P-quotient of its Stone-?ech compactification. (application/pdf) - 12-ene-2008
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