University of Zimbabwe

About: University of Zimbabwe is a education organization based out in Harare, Harare, Zimbabwe. It is known for research contribution in the topics: Population & Acquired immunodeficiency syndrome (AIDS). The organization has 4378 authors who have published 6800 publications receiving 160720 citations. The organization is also known as: UZ & University College of Rhodesia and Nyasaland.

Symbiotic effectiveness and host ranges of indigenous rhizobia nodulating promiscuous soyabean varieties in Zimbabwean soils

Abstract: Presence of indigenous rhizobia nodulating promiscuous soyabean was determined in 92, mainly sandy soils, from wetter agro-ecological zones of Zimbabwe suited to soyabean production. A total of 129 isolates were obtained from nodules of promiscuous soyabean varieties, Magoye and Hernon 147, and a specific variety, Roan grown in potted soils. Magoye nodulated in 80%, Hernon 147 in 50% and Roan in only 25% of the 92 soils tested. Rhizobia populations ranged from undetectable to 2.4×10 4 cells g −1 of soil. Twenty-one of these isolates were tested for symbiotic effectiveness on two varieties, promiscuous Magoye and specific Roan. Differences in parameters such as nodule numbers, nodule weights and total N fixed reflected diversity among the indigenous isolates. Three isolates had significantly higher N 2 -fixing potential in comparison with the commercial strain MAR 1491 on promiscuous Magoye. Host ranges of 34 isolates were evaluated on nine legume species: Arachis hypogaea , Cajanus cajan , Crotalaria juncea , Glycine max , Macroptilium atropurpureum , Phaseolus vulgaris, Sesbania sesbania , Vigna subterranea , Vigna unguiculata . Of these 34 isolates, 33 formed nodules with M. atropurpureum of which 61% were moderately effective to very effective while all nodulated V. unguiculata with 58% being moderately effective to very effective. Twenty-eight isolates nodulated V. subterranea and C. cajan (short season variety) with 76 and 36% of these being moderately to very effective, respectively. None of the isolates formed nodules on Phaseolus vulgaris , Arachis hypogaea or Sesbania sesban . Our results indicate that the ability of even specific varieties of soyabean to nodulate with indigenous isolates in African soils is greater than generally assumed.

Relationship between secondary science teachers' orientation to traditional culture and beliefs concerning science instructional ideology

Abstract: This study sought to measure secondary science teachers' level of commitment to traditional culture in Zimbabwe and how this orientation is related to their beliefs concerning science instructional ideology. The study involved 63 in-service science teachers studying for the bachelor of education degree at the University of Zimbabwe. The science teachers in this study maintain a fairly traditional posture with regard to aspects of traditional authority, religion, view of nature, and social change. They show a much stronger shift away from tradition with regard to sex roles, causality, and problem solving. Their scores of commitment to indigenous culture were positively and significantly correlated to traditional noninquiry ideology preference scores but not to inquiry instructional ideology preference scores. Implications of the findings are discussed. © 1999 John Wiley & Sons, Inc. J Res Sci Teach 36: 333–355, 1999