R.B. Cronje

ORCID: 0000-0001-5069-5005
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About
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Research Areas
  • Plant Physiology and Cultivation Studies
  • Plant Reproductive Biology
  • Postharvest Quality and Shelf Life Management
  • Banana Cultivation and Research
  • African Botany and Ecology Studies
  • Plant Pathogens and Fungal Diseases
  • Flowering Plant Growth and Cultivation
  • Tree Root and Stability Studies
  • Horticultural and Viticultural Research
  • Plant and animal studies
  • Botanical Studies and Applications
  • Agriculture and Rural Development Research
  • Seed and Plant Biochemistry
  • Plant Surface Properties and Treatments
  • Livestock and Poultry Management
  • Chromosomal and Genetic Variations
  • Nuts composition and effects

Agricultural Research Council of South Africa
2009-2023

ABSTRACT Preharvest treatments were tested with commercial practice to improve yield, fruit size, weight, and quality attributes of litchi cv. 'Maritius'. Treatment regimes included control: T C = control [30% nitrogen (N) after harvest 50% at flowering, 20% set; Potassium (K) 40% in March, 60% flowering; Lime (CaSO4) zinc (Zn), boron (B), copper (Cu) sprays flowering]; 1 same as C, but an additional application low biuret (LB) urea (1%), cytokinin (150 mL/100 L water), (2%) potassium...

10.1080/01904160802530987 article EN Journal of Plant Nutrition 2009-01-02

The present study evaluated the effect of pruning according to different tree forms on yield, fruit size, and leaf starch reserves young 'Nadorcott' mandarin trees planted at high density. Trees were selectively pruned by hand either form (pyramid or open center) removing lateral central branches, left unpruned until touched each other in row with minimal thereafter (control). Form pruning, particular pyramid form, resulted higher amount biomass removal compared control treatment, affecting...

10.1080/15538362.2021.1940418 article EN cc-by International Journal of Fruit Science 2021-01-01

For nearly a century two cultivars formed the basis of South African commercial litchi industry, namely ‘Mauritius’ (‘Tai So’) and ‘McLean’s Red’ (‘Bengal’). The Agricultural Research Council’s Institute for Tropical Subtropical Crops (ARC-ITSC) in Nelspruit executes plant improvement program litchis based on interlinked strategies, (1) evaluation local selections imported cultivars, (2) breeding new material adapted to conditions. From results with cultivar evaluation, ‘Third Month (‘San...

10.17660/actahortic.2014.1029.6 article EN Acta Horticulturae 2014-04-01

The South African litchi industry is predominantly export orientated and great effort put into gaining high yields marketable fruit size. In spite of profuse flowering, yield usually inadequate, mainly because massive fruitlet drop during the early period development. Fruit size often hampered by insufficient irrigation fertilization critical periods Although good research has been done on various aspects production this does not find its way farm management. This background in was reason...

10.17660/actahortic.2010.863.58 article EN Acta Horticulturae 2010-05-01

10.17660/actahortic.2009.820.83 article EN Acta Horticulturae 2009-04-01

ISHS III International Symposium on Longan, Lychee, and other Fruit Trees in Sapindaceae Family SEASONAL CHANGES IN STARCH CONCENTRATION RELATION TO TREE PHENOLOGY, ORCHARD MANAGEMENT AND ALTERNATE BEARING LITCHI (LITCHI CHINENSIS SONN.) SOUTH AFRICA

10.17660/actahortic.2010.863.59 article EN Acta Horticulturae 2010-05-01

Litchi represents an economically important crop in South Africa – however, the local industry is based on only five cultivars. In order to expand gene pool and extend harvest season, new cultivars have been imported. Currently, are identified morphological characteristics, but these not always reliable. Molecular markers provide a tool supplement characterisation, particularly cases which confusion exists. The present study reports application of sequence-related amplified polymorphism...

10.17159/sajs.2020/7461 article EN cc-by South African Journal of Science 2020-07-26

Ethylene is an important plant hormone that involved in the regulation of numerous processes development. It also acts as a signaling molecule response to biotic and abiotic stress conditions. Most studies have investigated ethylene evolution harvested fruit or small herbaceous plants under controlled conditions, but only few explored release other tissues, such leaves buds, particularly those subtropical crops. However, light increasing environmental challenges agriculture (such temperature...

10.21769/bioprotoc.4636 article EN BIO-PROTOCOL 2023-01-01

ISHS III International Symposium on Longan, Lychee, and other Fruit Trees in Sapindaceae Family EVALUATION OF MAXIM® (3,5,6-TPA) FOR INCREASE IN YIELD, FRUIT SIZE AND RETENTION LITCHI, CV. HLH MAURITIUS, SOUTH AFRICA

10.17660/actahortic.2010.863.57 article EN Acta Horticulturae 2010-05-01
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