Department of Horticulture
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Light regulation of carotenoid biosynthesis in the peel of mandarin and sweet orange fruits
(Frontiers, 2019-10-15)Carotenoids are the pigments responsible for the coloration of the peel and pulp of Citrus fruits. Light is one of the major environmental factors influencing coloration and carotenoid content and composition of fleshy ... -
Application of gum arabic and methyl cellulose coatings enriched with thyme oil to maintain quality and extend shelf life of “Acco” pomegranate arils
(MDPI, 2020-12-01)The effects of gum arabic (GA; 1.5% w/v) and methyl cellulose (MC; 1% w/v) enriched with thyme oil (TO; 0.25 and 0.5% v/v) on the quality of “Acco” pomegranate arils were studied. Coating treatments, namely, MC, MC + ... -
The effects of postharvest treatments and sunlight exposure on the reproductive capability and viability of Phyllosticta citricarpa in citrus black spot fruit lesions
(MDPI, 2020-12-21)Citrus black spot (CBS) is caused by Phyllosticta citricarpa, which is classified as a quarantine organism in certain countries whose concerns are that CBS-infected fruit may be a pathway for introduction of the pathogen. ... -
Dormancy progression, artificial rest breaking and pollination of 'Independence' almonds under South African growing conditions.
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Almond (Prunus amygdalus Batsch) has grown in popularity with South African growers, as the need for better alternatives to marginal crops arose in the Western Cape. A failure to establish a local almond ... -
Food preservative capabilities of grape (vitis vinifera) and clementinemandarin (citrus reticulata) by-products extracts in South Africa
(MDPI, 2019-03-22)The drive towards sustainable food systems coupled with increased consumer sophistication have prompted innovation in waste valorization. Grape and citrus processing by-products, abundant in the Mediterranean and tropical ... -
Browning and watercore disorders in 'Fuji' apples explored by means of X-ray computed tomography (CT)
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: The Fuji apple cultivar occupies 9% of land under apple production in South Africa. To ensure all year-round fruit availability, ‘Fuji’ apples are stored for extended durations. However, ‘Fuji’ apples are ... -
Red colour improvement in apple fruit (Malus domestica Borkh.)
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Fruit red colour coverage and intensity determine the market value of bi-colour apples. Anthocyanin synthesis and therefore red colour development is highly light- and temperature dependent, the latter ... -
Shade net studies on two Japanese plum cultivars (Prunus salicina Lindl.)
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: South Africa is one of the major exporters of Japanese plums (Prunus salicina Lindl.) to Europe and the United Kingdom. The demand for top quality fruit upon purchase drives farmers to optimize fruit ... -
Mathematical modelling of blanch-assisted drying of pomegranate (Punica granatum) arils in a hot-air drier
(MDPI, 2020-05-20)The effect of blanching conditions on the hot-air drying kinetics of three pomegranates (cvs. “Acco”, “Herskawitz” and “Wonderful”) were assessed. Water blanching conditions considered were 90 °C for 30 s, 90 °C for 60 s, ... -
Harvest maturity, storage conditions and tree age influencing internal browning and fruit quality of Rosy Glow apple (Malus domestica Borkh)
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: ‘Rosy Glow’ being a limb/bud sport variety of ‘Cripps’ Pink’ apple, is also regarded prone to internal flesh browning (IFB) similar to its parent cultivar. IFB in ‘Cripps’ Pink’ apples has been reported ... -
Manipulating crop load using plant growth regulators
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Flower or fruit thinning plays an important role in deciduous fruit production in ensuring optimal yield, fruit size and quality. The stone- and pome fruit industries still rely heavily on hand thinning. ... -
Investigating the vegetative development and yield of pecan
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Like other deciduous trees grown in regions that experience warm winters and low winter chilling, pecans suffer from low and sporadic bud break. This often has negative implications for vegetative growth ... -
A study of the dynamics of sunburn reduction in apple (Malus domestica) using foliar applications of boron and calcium
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Apple fruit sunburn browning (SBB) is largely a climate-related disorder that reduces fruit quality leading to serious financial losses. The aim of this research was to unravel the mode-of-action by which ... -
Physiological dynamics of dormancy in apple buds grown in areas with insufficient winter chill
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Apple trees, that do not fulfil their winter chill requirement, undergo inadequate dormancy release resulting in poor budbreak with irregular and delayed flowering that impact negatively on fruit production ... -
The use of plant growth regulators to improve apple pedicel length and reduce fruit cracking
(Stellenbosch : Stellenbosch University, 2020-04)ENGLISH ABSTRACT: Maintaining apple fruit quality is complex and factors such as short fruit pedicels and fruit cracking reduce quality. Fruit pedicels of certain cultivars in the Elgin-Grabouw-Vyeboom-Villiersdorp (EGVV) ... -
Photo-thermal studies in Japanese plums
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Heat waves, occurring towards or during the harvesting window of Japanese plum cultivars, hamper production of premium quality plums in the Western Cape Province of South Africa by causing sunburn in the ... -
Effect of fruit canopy position, harvest maturity and storage duration on post-harvest mealiness development of ‘Forelle’ pears (Pyrus communis L.)
(Stellenbosch : Stellenbosch UniversityStellenbosch University, 2019-12)ENGLISH ABSTRACT: Preliminary studies indicated a link between fruit canopy position and higher total soluble solids (TSS), respectively, and mealiness development during ripening of ‘Forelle’ pear. In this study this link ... -
A study of the impact of salinity on growth and development of important tomato and banana cultivars of the Jordan Valley with an assessment of the efficacy of biostimulants as ameliorants for increased tolerance to salinity
(Stellenbosch : Stellenbosch University, 2019-12)ENGLISH ABSTRACT: Soil salinity is a major challenge to farmers in the Middle East in general, but particularly so in Jordan, where salinization of irrigation water sources puts additional pressure on production systems, ... -
Evaluating the effect of living mulch species as sustainable practice on soil dynamics in perennial orchards in South Africa
(2019-03)ENGLISH ABSTRACT: Two plant (weed) species were investigated for their potential as suitable living mulch species in two perennial fruit orchards in two different climatic regions in South Africa. Tradescantia fluminensis ... -
Calcium uptake and distribution in relation to periods of active white root growth in young, potted apple trees (Malus domestica Borkh. cv. ‘Golden Delicious’) in the Western Cape
(Stellenbosch : Stellenbosch University, 2019-02)ENGLISH ABSTRACT: Two-year-old ‘Golden Delicious’/M7 apple trees were chosen as the experimental material for this study. Potted trees were fertigated with a low calcium (Ca), balanced nutrient solution over two consecutive ...
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