Nuseed’s GT-41 – A high yield reward for switching to GT hybrid

A simple on-farm trial comparing a new hybrid canola variety with an older open pollinated variety has shown the way to increased yields for Allan Griffith at Carnamah in Western Australia.

His agronomist, Graham Doust from Doust Agri Services, suggested he upgrade to Nuseed’s GT-41 in 2014 – a higher yielding, adaptable new Roundup Ready® hybrid canola variety expected to suit the northern cropping region.

But at the time, GT-41 was “an unknown quantity” to Mr Griffith.

“I’d never grown a hybrid type Roundup Ready canola before and it was a fairly new variety, so I just put one bag of seed in to see if it would grow as well as the experts thought,” he said.

With a free trial bag sown in a few hectares next to his main crop, Mr Griffith was able to directly compare its performance against the rest of his 250 hectares of canola.

At harvest, he had his answer. The small crop of Nuseed GT-41 outperformed his main crop of Viper by more than 0.5 t/ha.

“I was more than happy with its performance, so I sowed it across the whole 250 hectares this year,” he said.

Others in the district have done the same, with more than a dozen growers turning to Nuseed’s GT-41 this year, according to Graham Doust.

“GT-41 has been a standout canola variety this year,” Mr Doust said.

“It wasn’t just Allan who learnt from this trial, because all the growers around here tend to talk about the latest when they’re in town or catching up at field days.

“Some switched straight to GT-41 for their whole canola crop and others decided to put in a trial bag for themselves.”

Allan’s crop was one of the higher yielding in the district.

“There are a few growers further east who are not sure about how well Roundup Ready hybrids will work for them, but around here, most of the canola crops are Roundup Ready and they’re already buying new seed every year,” he said.
Mr Griffith’s GT-41 canola crop yielded 1.8 t/ha, a great result given the dry finish to the season.

Mr Doust explained that GT-41 was an adaptable variety, able to hang on well in dry conditions and make the most of any rainfall. It is Nuseed’s earliest maturing Roundup Ready hybrid canola variety.

Mr Griffith said the high yield he achieved was due to a couple of good rainfalls, as well as the crop’s early sowing date.

He prepares for sowing when he puts the gear back in the shed at the end of seeding, so that he can be ready to start within a day or so.

“A big storm came through in early April and the crop was planted as soon as it dried out enough to get on to the paddocks,” said Mr Griffith.

With about 100 mm of rain before sowing and an early planting date of mid April, the crop was already in a good position for success.

It was planted with 70 kg/ha of DAP and topdressed early in the season with 120 kg/ha of urea.

One spray of Roundup herbicide was applied at the six-leaf stage to clean up brome grass and ryegrass.

Then another significant rainfall in July, delivering approximately 100 mm, gave the crop all it needed to finish well.

“It never looked back after that rain in July,” he said.

“The GT-41 I had in a paddock about 5 km south of town did the best – it was on the highway and many commented on how it looked this year.

“I think GT-41 is a great performer, although if Nuseed do come up with something better, I’ll try it out.”

This season, growers purchasing at least six bags of GT-41 will receive a bonus $50 gift card with each bag of seed, until April 2016.

Nuseed is extending its use of on-farm demonstration trials across the country from 2016.

The company’s new Crop Agronomy Trial (CAT) program will encourage growers to trial Nuseed’s latest varieties and those still in development in large-scale plots next to existing Nuseed varieties or competitor varieties of similar maturity.

Hugh Trenorden, Area Sales Manager for Nuseed for northern Western Australia, said the CAT program recognised that on-farm trials often gave growers the best information about the performance of varieties in their area.

He said Nuseed was adding the comprehensive on-farm demonstration trial program to its existing trial and development program and would continue to be involved in the National Variety Trials.

“This is a great opportunity for growers to obtain up-to-date varietal information about yield and other crop characteristics and assess how the latest Nuseed technology performs in their own backyard,” Mr Trenorden said.

“We will be measuring and recording key information like sowing rates and dates, inputs and seasonal conditions, the condition of the crop during the season and the yield and oil percentage at harvest.”

He said growers would be able to use the information to compare the profitability of different varieties.

The CAT program will include canola, sunflowers and sorghum. Growers will be selected to participate in the Nuseed CAT program by their Nuseed sales representative in the coming months.





Allan Griffith from Carnamah, Western Australia, grew Nuseed’s GT-41 canola this year, achieving an average yield of 1.8 t/ha, a great result given the dry finish to the season.