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Avocado Growers Maximize Yields & Efficiency

by , October 27, 2017 | 0 comment | 641 Views

Mevi Orchards, Jalisco, Mexico

All over the world Avocado Growers are trying to maximize their yields. For example, on many new orchards in Mexico, the trees are intensively planted, and kept small.  It’s much easier to harvest the avocado and every tree is linked to an irrigation system also carrying liquid nutrients and fertilizers.

In Australia a global shortage of trees has seen some growers wait three years before they can plant; often these are farmers who want to expand their avocado orchards, or entrepreneurs who want to enter the avocado farming industry.

In response, researchers at the Queensland Alliance for Agriculture and Food Innovation have developed a way of using tissue cultures to grow new avocado trees faster and more efficiently.  Professor Neena Mitter said:

“At present, to supply new trees, the avocado industry follows the same process they have for the last 40 years which is to take cuttings from high quality trees and root them. It takes 18 months to make that cutting root and then you get just one plant per cutting.”

She described a new method developed by researchers using a small segment of the cutting from a mature tree in a tissue-culture system to speed up and multiply the process.

“We can make it root within six to eight months, and we can also multiply that cutting so we can get 500 plants from a single cutting rather than just getting one plant.

There’s no genetic modification, there’s no change, it’s the same cutting from that same tree … all we have done is provide it with certain, really nice and suitable conditions.”

The method will now be tested in field trials and if it proves successful Professor Mitter said it could be a game-changer for the industry, with multiple benefits.

QAAFI researchers inspect fast growing avocado clippings

“It’s not just that the plant supply will increase … it also means that because we will be supplying uniform plants we can go to high-density plantings.

You could do trellising, you can use mechanized harvesting as is the case with apples — which has never been possible with avocado before because the plants were not uniform.

We can produce about 20,000 plants in a 10 sq m room, so imagine the saving in terms of land, fertilizer, pesticide usage. It’s a very environmentally sustainable and efficient method of multiplication.”

Australians have increased their avocado consumption from 3.2 kgs to 3.5 kgs per person over the last year. But many fruit are imported from New Zealand. Avocados Australia chief executive John Tyas commented that:

“Everyone wants avocado now. It’s a beautiful fruit, really healthy and nutritionally rich. So I think it’s going to be a real big game changer for the industry.

Domestic and overseas demand are both strong because people now know ways to use avocados at every meal — from the smashed avo at breakfast to avocado chocolate mousse for dessert — and that means they’re also buying avocados more often.

We now grow avocados in all states, and the wide range of climates where avocados are grown means consumers can find fresh, Australian avocados for sale year-round.”

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