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Hopefield, South Africa

Louw E.-L.,Arnelia Farms
Acta Horticulturae | Year: 2015

Arnelia Farms is a potted plant nursery as well as an export cut flower farm close to the town of Hopefield on the West Coast of South Africa. The nursery specialises in Proteaceae although the range is slowly expanding to complementary plant families. Except for two species which are propagated from seed the other cultivars currently in production are vegetatively propagated from mother stock. The mother stock is a high value section in the nursery and irrigation (fertigation) needs to be monitored very closely as these plants are sensitive to increased levels of nitrates and phosphate as well as water-logged conditions in winter and drying out during summer. Irrigation monitoring takes place by continuous logging soil moisture probes, weekly measuring of the total drainage water, and daily total irrigation water supplied, measuring the EC and checks by the nursery manager. Similar irrigation monitoring is done in the retail section (15-cm pots). Temperature is recorded by an automated weather station. The difference in EC calculated between the EC of the drainage water and EC of the irrigation water, as well as the soil moisture recorded with the probes, correlated well with mean daily and mean daily maximum temperature. Over time, analysis of data will improve the manager's ability to make decisions concerning irrigation and reduce the risk. Source

O'Brien C.J.,Future Fynbos JV | Hettasch H.B.,Arnelia Farms
Acta Horticulturae | Year: 2014

Future Fynbos is a privately funded breeding venture, based in South Africa, breeding new cultivars for commercial cut flower production and potted plants, mainly in the family Proteaceae. Breeding of genus Leucadendron R.Br started in 2003 with the initial focus on cone products for the Christmas market. Hybridisation was achieved through controlled hand-pollination of selected species and hybrids, in certain cases with stored pollen. The parents for the crosses that lead to these new hybrids were specifically selected on the basis of vigour and cone qualities. Two new cultivars, 'Cape Kiss' (PBR pending) and 'Cape Sunset' (PBR pending), were released in 2011. Two more cultivars, 'African Sky' and 'African Sunrise' will be released in 2012. The female parents, of the new hybrids were Leucadendron salignum × L. laureolum and L. salignum × L. eucalyptifolium, from the Alata subsection in the section Alatosperma. Three of the new hybrids were intrasectional, with the male parents also from the Alata subsection of genus Leucadendron. One of the new hybrids was intersectional with the male parent coming from the Nucifera subsection in the section Leucadendron. Intersectional hybrids in genus Leucadendron are relatively uncommon and thus highly sought-after. Source

O'Brien C.J.,Future Fynbos Pty Ltd | Hettasch H.B.,Arnelia Farms
Acta Horticulturae | Year: 2015

Protection of new varieties is critical to the sustainability of any breeding effort just as new varieties are critical to the long term sustainability of the industry. Future Fynbos (Pty) Ltd., a privately owned breeding company specialising in Proteaceae, has experience in applying for plant breeders' rights and trademarks in both South Africa and the European Union (EU). Procedures, costs and time-frames for PBR and trademark applications in these two regions, for three different genera of Proteaceae, are discussed. Source

Hettasch H.B.,Arnelia Farms | Bezuidenhout E.-L.,Arnelia Farms
Acta Horticulturae | Year: 2014

In South Africa Proteaceae rooted cuttings for commercial cut flower growers are typically produced in a 90 × 150 mm perforated, transparent plastic bag. A new option for the production of rooted cuttings, now available in South Africa, is a range of bio-degradable pots, strips and plugs from Jiffy®. From this range, a 60 × 60 × 100 mm deep, square Jiffy-Strip was selected to evaluate as a potential alternative for the production of rooted cuttings for cut flower orchards. Vegetative cuttings of two cultivars in each of the genera Leucadendron, Leucospermum and Protea were set in both perforated plastic bags as well as in square Jiffy-Strips using standard commercial propagation mix and rooting hormone. Rooting of cuttings was carried out in a naturally ventilated fog house without bottom heat. The handling process from the nursery to planting of rooted cuttings in Jiffy-Strips was less time consuming as there was no need to remove a bag. There was less root damage during transplanting, thus effectively lowering losses after planting. Rooting percentages, root structure and costing were also compared for the two different systems tested. This bio-degradable, zero-waste system has the potential to be a viable alternative for the production of rooted cuttings for commercial cut flower orchards. Source

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