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A taxonomical–ecological investigation of the soil mesofauna in the rhizosphere of citrus trees at Zebediela Estates
(Potchefstroom University for Christian Higher Education, 1968)
The purpose of this investigation was to assess the taxanomic - ecologic nature of Zebediela's citrus sol, situated in the eastern part of the Potgietersrus district, Northern Transvaal . Habitat descriptions are given, ...
'n Vergelykende studie van die invloed van enkele ekologiese faktore op die varswaterslakspesies, Lymnaea natalensis Krauss en Bulinus (Bulinus) tropicus (Krauss) [Mollusca : Basommatophora] met spesiale klem op die substratum
(North-West University (South Africa), 1968)
"Abstract not copied"
Veranderinge van die plasmaproteïene, proteïengebonde-jodium en die lipogram tydens eksperimentele aterosklerose
(North-West University (South Africa), 1968)
The object of this study was to
determine what changes the plasma proteins
and thyroid function exhibit during experimental
generation of atherosclerosis in experimental
animals and how this corresponded with the
measurable ...
Kwalitatiewe en kwantitatiewe seisoensondersoek na die soöplankton in Loskopdam
(North-West University (South Africa), 1968)
"Abstract not copied"
Fluoorasetaat-, aminosuur- en organiese suurmetabolisme van gifblaar (Dichapetalum cymosum Engl.)
(North-West University (South Africa), 1968)
It has been shown by means of respiration stu,dies that Gifblaar is
capable of metabolizing FAc. A method was worked out for the synthesis of
FAc-2- 14C from MeBrAc-2- 14C w1tp. a yield of 65%. When FAc-2- 14C was
applied ...
The chemistry of the brominated derivatives and the crystallographic determination of the structure of the tetrabrominated derivative of the C4-photodimers of 1,4-naphthoquinone
(North-West University (South Africa), 1968)
The chemical investigation of the relationship between the
di- and tetrabrominated photodimers of 1, 4~naphthoquinone was
undertaken and a mechanism for the bromination introduced. The
crystal and molecular structure ...
'n Ondersoek na die verspreiding van sekere Ephemeroptera [Insecta] in die Komatirivierstelsel, Oos-Transvaal
(North-West University (South Africa), 1968)
"No abstract"
'n Taksonomiese ondersoek van die Paratydeidae, Nanorchestidae en Alicorhagiidae [Acari] in die Suid-Afrikaanse gronde
(North-West University (South Africa), 1968)
"Abstract not copied"
The taxonomy of the family Entomobryidae [Collembola] of South Africa
(North-West University (South Africa), 1968)
"Abstract not copied"
Die rol van die Astigmata [Acari] in die oordra van swambesmetting by grondboontjies
(North-West University (South Africa), 1968)
1) Die Astigmata is numeries van die belangrikste fauna wat
geassosieerd met grondboontjies voorkom.
2) 'n Nuwe astigmaatspesie; Caloglyphus arachis is beskryf .
3) Astigmaat myte van die genera Caloglyphus, Tyrophagus ...