We stratify the persimmon rootstock seed, Diospryros Kaki, in April, for a period of three months. It is then removed from cool storage, germinated and potted up into 4 litre poly bags, containing steam pasteurised potting mix.
The trees are then grafted onto in August, trained, disbudded, staked and sold the following Autumn/Winter. Naturally they are irrigated with chlorinated water to ensure that they are supplied free from soil borne diseases. We currently produce approximately 3000 trees per year.
The fruit of this vine has a delicate flavour and can be eaten on its own as fresh fruit, or may be combined with other fruits, preserved or canned.
At Sunraysia Nurseries we have taken great care with our plants by growing them i pasteurised (aerated-steam treated) media to preventPhytophthora contamination.
The female variety of Pistachio we produce is Sirora because it has the important characteristics of high yield and high percentage spilt, which is essential for successful commercial growing. The compatible Male pollinators are known as Male Number 3 and Male Number 4.
We sow the rootstock seed in late spring, early summer into a light potting mixture. We then pot the germinated seed into jiffy peat pots then into 4 litre poly bags and graft onto it in August. The trees are trained, staked, disbudded and sold the following Winter.
We produce between 2000 and 5000 trees per year, depending on market demand and scion availability. Naturally, all of these trees are container grown in aerated, steam pasteurised potting mix and irrigated with chlorinated water to ensure that they are supplied free of soil borne diseases.
We bud onto Terebinthus rootstock because it has resistance to both nematode and fungi and tolerance of both acid and alkaline soils. We can also bud onto the new patented disease resistant F1 hybrid rootstock called Pioneer Gold One, providing growers provide us with 2 years notice and pay a seed royalty.
The CSIRO division of horticulture conducted a small research project on Quandongs over a twenty year period. The primary aim of this project was to evaluate seedlings trees established from seeds collected over a wide geographic range.
Sunraysia Nurseries were asked by CSIRO, to propagate and distribute the better selections that arose from this evaluation program.
We have encounted many problems whilst trying to develop a commercially viable production technique for Quandongs. We also continue to experience difficulties with orchard transplanting.
In February, we soak the Quandong seed in household bleach for 30 minutes, we rinse twice and soak overnight in a solution of fungicide and hormone. We then tip both the seed and solution into a plastic bag of dry vermiculite and store at 15°C until the seeds germinate.
The germinated seed is potted into Gro-Tubes containing steam pasteurised potting mix. We graft these trees in May, providing they have attained a suitable thickness.
A host plant accompanies each plant, as this desert dweller is so delicate that it has had to evolve a life support system via a host plant to survive. It is a parasite of any neighboring plant.
We currently try to produce up to 10,000 trees per year, to meet the current “Australian Bush Tucker” demand.