Department of Horticulture
Collections in this community
Recent Submissions
-
Evaluating the sustainable potential of biogas generation in South Africa
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH SUMMARY: With a global movement towards a more sustainable way of living, the two most noteworthy hurdles to overcome in the quest for sustainable development are the unsustainable management of waste and availability ...
-
A holistic management approach: assessing the sustainability of aquaponics systems using biodigestate as partial alternative nutrient source
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH SUMMARY: One of the hurdles facing sustainable agricultural practice is the declining soil fertility that results from consistently cropping the same parcel of land and the demand of plants on especially mineral ...
-
Ca-metalosate as an alternative Ca formulation for decreasing Ca related disorders in fruit trees
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Generally, calcium (Ca) foliar applications are used to improve the Ca status of fruit and control the incidence of Ca-related disorders, viz. bitter pit (BP) in apples and albedo breakdown (AB) in citrus. ...
-
Quantifying the effect of commercial nitrogen formulations BlackUrea™ / BlackDAP™ as alternative nitrogen source on fruit tree physiology, yield and fruit quality of two apple cultivars
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: The relationship between plant and soil is very complex and understanding it is fundamental to optimal use of fertilizers for a profitable yield, without compromising the environment. Nitrogen (N) fertilizers ...
-
Acclimation of apple peel to light and temperature and the effect thereof on red colour development and tolerance to sunburn
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH SUMMARY: Sunburn is the biggest abiotic quality defect affecting apple orchards in South Africa. In blushed cultivars, inadequate red colour development at harvest is of similar importance as sunburn as quality ...
-
Aspects of mineral nutrition affecting fruit quality of ‘Nadorcott’ mandarin
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH SUMMARY: Mineral nutrition of Citrus is one of the key controllable factors influencing fruit quality. The mineral nutrients known to have the greatest impact on Citrus fruit quality, in order of magnitude of effect, ...
-
Water relations and sunburn in apple fruit.
(Stellenbosch : Stellenbosch University, 2017-12)ENGLISH SUMMARY: Sunburn in apple is a major problem in South Africa with losses of up to 50% of total yield. The primary objective of this study was to investigate the relationship between tree water relations and sunburn ...
-
Rapid methods for extracting and quantifying phenolic compounds in citrus rinds
(Wiley Open Access, 2016)Conventional methods for extracting and quantifying phenolic compounds in citrus rinds are time consuming. Rapid methods for extracting and quantifying phenolic compounds were developed by comparing three extraction solvent ...
-
Mating compatibility and competitiveness between wild and laboratory strains of Eldana saccharina (Lepidoptera : Pyralidae) after radiation treatment
(Florida Entomological Society, 2016)The efficacy of the sterile insect technique (SIT) applied as part of area-wide integrated pest management (AW-IPM) depends on efficient transfer of sperm carrying dominant lethal mutations from sterile males to wild ...
-
Classification of 'Granny Smith' apples with different levels of superficial scald severity based on targeted metabolites and discriminant analysis
(German Botanical Society, 2016)To study the metabolic changes in ‘Granny Smith’ apples with different severities of superficial scald, fruit were stored in normal refrigerated air (0°C, 95% RH) for 12 weeks followed by 7 d shelf-life under room conditions ...
-
Berry abscission in vitis vinifera L. cv. Waltham Cross : changes in abscission-related factors during berry development
(South African Society for Enology and Viticulture, 2005)During the 1999 season, changes in total soluble solids (TSS), titratable acids (TA), pedicel diameter, berry diameter, berry mass and fruit removal force (FRF) were determined at biweekly intervals from 27 until 111 days ...
-
The influence of storage duration and elevation of storage temperature on the development of berry split and berry abscission in vitis vinifera L. cv. Thompson seedless table grapes
(South African Society for Enology and Viticulture, 2005)Thompson Seedless grapes, packed in non-perforated low density polyethylene bags, were cold stored at -0.5°C and RH 83% for 0, 1, 2, 4 and 8 weeks. After storage at -0.5°C for these periods, the grapes were stored for ...
-
Quantifying changes in tree physiology after amelioration to reduce sunburn on apples
(Stellenbosch : Stellenbosch University, 2017-03)ENGLISH ABSTRACT: Research was done in response to initial findings that combined calcium (Ca) and boron (B) reduced sunburn damage in apples. With the mode of action for this amelioration being unclear, current knowledge ...
-
Moisture loss studies in nectarine (Prunus persica var. necterina)
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Moisture loss studies in nectarines (Prunus persica var. nectarina) Moisture loss during long term storage is one of the main post-harvest problems in nectarines. The long handling chain to which fruit ...
-
Preference of South African consumers for the eating quality and appearance of apples
(Stellenbosch : Stellenbosch University, 2016-12)ENGLISH ABSTRACT: Considering that 27% of South Africa’s apple crop is sold locally, we aimed to determine the attributes that drive South African consumers’ apple eating quality and appearance preferences. Since a ...
-
Stability of total phenolic concentration and antioxidant capacity of extracts from pomegranate co-products subjected to in vitro digestion
(BioMed Central, 2016-09)Background: Co-products obtained from pomegranate juice processing contain high levels of polyphenols with potential high added values. From value-addition viewpoint, the aim of this study was to evaluate the stability of ...
-
Anaerobic digestion of dairy manure wastewater, food and fruit waste, a sustainable source of bio-energy and waste management
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: The potential for anaerobic co-digestion (AD) organic waste streams such as dairy manure waste water, fruit and food waste is a well-established process. A pilot study, utilizing a new constructed 40.248 ...
-
The influence of cell wall bound calcium, cell number and size on the development of mealiness in 'Forelle' pear. Evaluation of X-ray CT and NIR as non-destructive techniques for mealiness detection
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: ‘Forelle’ pear (Pyrus communis L.) is the second most planted pear and the second highest generator of foreign exchange for pears in South Africa. It is favoured for its red blush, melting texture, sweet ...
-
Post-harvest rind pitting studies on ‘Valencia’ orange
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Post-harvest rind pitting is a non-chilling related physiological rind disorder that affects various citrus cultivars and reduces fruit value. This disorder is characterised by the collapse of the flavedo ...
-
Influence of rind water content on mandarin citrus fruit quality
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: ‘Nules Clementine’ and ‘Nadorcott’ mandarin are commercially important Citrus cultivars in South Africa. Both cultivars are prone to develop rind breakdown and pitting which are considered non-chilling ...
-
Impacts of preharvest and postharvest handling and processing on bioactive compounds and functional properties of pomegranate fruit fractions and by-products
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: Pomegranate fruit (Punica granatum L. Punicaceae) is highly valued owing to its high concentration of bioactive compounds found in the arils and peel. In fact, evidence from literature indicates that ...
-
Effects of dynamic controlled atmosphere and initial low oxygen stress on superficial scald of 'Granny Smith' apples and 'Packham's Triumph' pears
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH ABSTRACT: ‘Granny Smith’ apples and ‘Packham’s Triumph’ pears are the main export pome fruit in South Africa. The fruit are stored for extended period to take advantage of main export markets such as the European ...
-
Quantifying root growth dynamics and nutrient uptake in apple trees
(Stellenbosch : Stellenbosch University, 2016-03)ENGLISH SUMMARY: The dynamics of white roots were quantified using minirhizotrons (MR) over two consecutive seasons in four apple orchards in the Elgin-Vyeboom region of the Western Cape, South Africa. The cultivars monitored ...
-
A study of broken stones in Japanese plums (Prunus salicina Lindl.)
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: In order to export South African plums to overseas markets strict quality standards must be maintained. Among these quality classifications are specifications about the presence of cavities and pieces of ...
-
Preference of Western Cape Province consumers for the eating quality and appearance of pears
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Our study aimed to determine the preference of Western Cape consumers for the eating quality and appearance of pears. Identifying the main sensory drivers of liking and consumer groupings with similar ...
-
New chemical thinning strategies for stone fruit
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Thinning of stone fruit, just as in any other deciduous fruit crop, plays an important role in producing fruit of the right size and quality. Hand thinning is highly labor intensive and time consuming, ...
-
Mechanical thinning of pome fruit
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: Thinning is an important practice in pome fruit production which aims to ensure an optimal yield of high quality, large sized fruit as well as an adequate return bloom. In South Africa, pome fruit thinning ...
-
Moisture loss studies in Japanese plums (Prunus salicina Lindl.)
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: The export of Japanese plums from South Africa is challenging. Exporting late season plums require fruit to last as long as 8 weeks in cold-storage. Prolonged storage periods can cause some cultivars to ...
-
The potential of dynamic controlled atmospheres and possible mechanisms in mitigating superficial scald in Apples cv. ‘Granny Smith’
(Stellenbosch : Stellenbosch University, 2015-12)ENGLISH ABSTRACT: The development of a postharvest method for controlling superficial scald, maintaining quality and reducing postharvest losses of ‘Granny Smith’ apples is essential in maintaining the competitiveness ...
-
Harvest scheduling of southern highbush blueberries (Vaccinium corymbosum L. interspecific hybrids) in a climate with moderate winter chilling
(Stellenbosch : Stellenbosch University, 2015-04)ENGLISH ABSTRACT: Profitability in the export driven South African blueberry industry is dependent on early spring harvests. The George region in the Western Cape accumulates too few chill-units to release buds of some ...
RSS 1.0