Research aims to improve Ti Tree table grape colour
Research is underway at Ti Tree to enhance the colour of table grapes to improve their marketability.
Red table grapes grown around Ti Tree often have a less intense colour than those grown in cooler areas, making them less attractive to buyers.
The need to wait for colour development, often during periods when prices are high in the market, is one of the challenges faced by growers in Central Australia.
Some countries enhance colour with Ethephon, a natural grape growth regulator. A newer tool for triggering grape colour development is ProTone®, which contains the plant hormone abscisic acid. Both these products are registered for grape colouring in Australia and are now being tested in Ti Tree.
Staff from the Department of Primary Industry and Resources will harvest the treated grapes by the end of November for colour and quality evaluation in the lab.