Study project (MBA)--University of Stellenbosch, 2002. / ENGLISH ABSTRACT: No effective programmed extension exists in the South African pome fruit industry. There is a lack of farmer response and involvement, a lack of coordinated dissemination of information and no systematic and scientific approach in the development of extension programmes for the industry. Particularly important is the lack of a systematic conceptualisation of problems and specifically the lack of identification of the most direct determinants of behaviour (the psychological field forces) and a lack of the systematic addressing of these human constraints. DOvel's revised extension programme model was used as basis for this study. It included the identification, prioritisation, conceptualisation and determination of perceived problems that need to be addressed in the extension programmes. The most important identified problems that needs attention in an extension programme are producers' knowledge relating to all aspects of strategic planning (ie knowledge of basic principles, what is attainable, the advantages and disadvantages and the practical implementation), knowledge relating to the practical implementation of irrigation, bitter pit control and practices to increase fruit size, and knowledge that relates to basic principles of marketing. / AFRIKAANSE OPSOMMING: Geen doelgerigte geprogrammeerde voorligting bestaan vir die Suid-Afrikaanse kernvrugindustrie nie. Daar is 'n tekort aan produsentebetrokkenheid, 'n tekort aan gekoordineerde verspreiding van inligting en daar is geen sistematiese en wetenskaplike benadering in die ontwikkeling van voorligtingsprogramme vir die industrie nie. Besonder belangrik is die afwesigheid van 'n sistematiese konseptualisering van probleme en meer spesifiek die tekort aan die identifisering van die meer direkte determinante van gedrag (die psigiese veldkragte) en die aanspreek van hierdie menslike beperkings. DOvel se hersiene model vir geprogrameerede voorligting het as basis gedien vir die studie. Die studie het ingesluit die identifisering, prioritisering, konseptualisering en bepaling van produsente se persepsie van aangespreek behoort te word. probleme wat binne voorligtingsprogramme Die belangrikste probleme wat in die studie geïdentifiseer is wat aandag moet geniet in voorligtingsprogramme is die produsente se kennis van alle aspekte van strategiese beplanning (kennis van basiese beginsels, kennis wat betrekking het op wat bereikbaar is met strategiese beplanning, die voor- en nadele daarvan asook die praktiese implementering van strategiese beplanning), kennis wat betrekking het op die praktiese implementering van besproeiing, bitterpit beheer en die verbetering van vruggroote asook die kennis wat betrekking het op die basiese beginsels van bemarking.

Thesis (MSc)--Stellenbosch University, 1980. / ENGLISH ABSTRACT: No abstract available / AFRIKAANSE OSPOMMNING: Geen opsomming beskikbaar

M.Sc.(Agric) / Department of Horticultural Sciences

The pomegranate fruit is one of the high valued crops, but there is insufficient information regarding the fruit properties in South Africa. The aim of the study was to evaluate the physico-chemical properties as well as total phenols, anthocyanin, antioxidant, organic sugars and acids of cultivar Wonderful on three locations of the Western Cape. This study was conducted on mature pomegranate fruits harvested in the 2012 and 2013 seasons. Fruit weight (g), length (mm), and width (mm), peel/aril colour and total arils weights (g) were measured. Fruits were also analysed for total soluble solids (TSS) or °Brix), titratable acidity (TA) and juice pH. Results of the study showed that there were significant differences in all measured factors with the exception of % aril yield between the three locations. Though varied per season, fruits produced at Bonnievalle had better physical and chemical properties than at the other localities. With the exception of Aril hue angle, all measured parameters had significant interaction effect regardless of locality (P<0.05). Total soluble solids content varied from 16.0–17.3 (°Brix), pH values from 2.7–3.0, titratable acid content varied from 1.3–1.7 and maturity index from 9.7–13.4. The anthocyanin, total phenols and antioxidant were in order of 772–1134; 1611–1834 and 12.57–14.84. Organic acids (Citric and Malic) showed differences while Acetic acid was not significant in all areas and organic sugar (fructose, Glucose and Sucrose) all had significant differences. It can also be concluded that changes in colour of peel and arils of pomegranate (cv. Wonderful) was mostly as a result of seasonal variation as well as growing area as evident by the interaction between both main factors. / Agriculture / M.Sc (Agriculture)

The pomegranate fruit is one of the high valued crops, but there is insufficient information regarding the fruit properties in South Africa. The aim of the study was to evaluate the physico-chemical properties as well as total phenols, anthocyanin, antioxidant, organic sugars and acids of cultivar Wonderful on three locations of the Western Cape. This study was conducted on mature pomegranate fruits harvested in the 2012 and 2013 seasons. Fruit weight (g), length (mm), and width (mm), peel/aril colour and total arils weights (g) were measured. Fruits were also analysed for total soluble solids (TSS) or °Brix), titratable acidity (TA) and juice pH. Results of the study showed that there were significant differences in all measured factors with the exception of % aril yield between the three locations. Though varied per season, fruits produced at Bonnievalle had better physical and chemical properties than at the other localities. With the exception of Aril hue angle, all measured parameters had significant interaction effect regardless of locality (P<0.05). Total soluble solids content varied from 16.0–17.3 (°Brix), pH values from 2.7–3.0, titratable acid content varied from 1.3–1.7 and maturity index from 9.7–13.4. The anthocyanin, total phenols and antioxidant were in order of 772–1134; 1611–1834 and 12.57–14.84. Organic acids (Citric and Malic) showed differences while Acetic acid was not significant in all areas and organic sugar (fructose, Glucose and Sucrose) all had significant differences. It can also be concluded that changes in colour of peel and arils of pomegranate (cv. Wonderful) was mostly as a result of seasonal variation as well as growing area as evident by the interaction between both main factors. / Agriculture / M. Sc (Agriculture)