Department of Horticulture
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Postharvest moisture loss in Japanese plums
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Plums exported from South Africa reach overseas markets after a long sea freight period. Yet consumers still expect fruit to be in perfect condition upon arrival at the supermarket. While care is taken ... -
Management practices to improve quality of apple nursery trees in containers
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: The quality of nursery trees at planting has a significant effect on productivity during the early years of newly established orchards. Trees need to grow and fill their allocated space in the orchard as ... -
Use of biostimulants as an alternate approach to achieve plant performance and fruit quality
(Stellenbosch : Stellenbosch University, 2019-04)ENGLISH ABSTRACT: Research in fruit crops using biostimulants as a strategy to improve tree performance by alleviating transplant shock and improving both yield and fruit quality under field conditions, is limited. The ... -
Critical factors concomitant to the physiological development of alternate bearing in citrus (Citrus spp.)
(Stellenbosch : Stellenbosch University, 2018-12)ENGLISH ABSTRACT: The significance of carbohydrates, mineral nutrients and phyto-hormones was investigated in relation to their possible roles in selected phenological events in alternate bearing ‘Nadorcott’ mandarin (C. ... -
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 ... -
Effect of permanent shade netting on ‘Nadorcott’ mandarin tree phenology and productivity
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Permanent shade netting in citrus (Citrus spp.) is implemented to protect high-value fruit and trees from damaging natural elements. However, the use of the technology accompanies inevitable changes in ... -
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 ... -
Feasibility of closed ventilation and automatic ventilation for sea freight of Proteaceae cut flower stems
(Stellenbosch : Stellenbosch University, 2018-03)ENGLISH ABSTRACT: Global trends aimed at advancing sea freight technology and reducing carbon emissions have led to the invention of automated reefer technologies. This development brings the challenge of having to determine ... -
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 ...
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