Ms Ruchkaew said the results were so promising she intends to more than double the size of her orchard.
"We have made a big commitment to Mahachanoks, planning to plant 45,000 trees over the next couple of years," she said.
Ms Ruchkaew made the decision to expand after experimenting with the variety for 10 years.
"We found they were well-received by the customer because they are good eating and sweet in taste; major supermarkets like them because of the longer shelf life and, personally, I like them because they are good producing trees," she said.
She believed one reason the Mahachanoks yielded 50 per cent more fruit than Kensington Pride trees each year is that the Thai variety thrived in the Top End climate.
"[Also, the] trees are disease resistant and can travel very well, so they tick all the boxes and I am confident that this is the future of the mango industry."
Ms Ruchkaew said currently she can't keep up with demand for her Mahachanoks.
"We are currently sending them to Western Australia and Victoria and have had requests to send them to New South Wales and Queensland, however at this stage we don't have enough production," she said.
"[We also have] overseas demand because we are counter season to Thailand.
"But hopefully in next three to four years we will have more trees come into production and can supply these markets."