GM canola not ‘a flop’

To the editor:

The GM debate continues heatedly, as it should, but the amount of propaganda coming out of the GM free camp is concerning. It was with alarm that I saw some of this misinformation coming from a magazine to which I have been a subscriber and, an advocate.

I’m talking about the article titled “GE (GM) canola a flop” in issue 1 of The Organic Way. The article referred to the results from the 2008 GE canola trials. The article didn’t link to the report so I’m assuming that I have the correct report: http://www.grdc.com.au/uploads/documents/GM%20Canola%20Roundup%20Ready.pdf If this is the correct report there are a number of statements in your article that need clarification.

The first statement that, GE canola yielded 17% less than both of the non-GE herbicide tolerant canola varieties it was compared with, can’t be ascertained from that report. So I’m not sure where that information came from?

Also the article makes this statement:

“…the announcement sent shock waves amongst many farmers who believed the industry spin and expected higher yields with GE (GM).”

What announcement does this refer to and what farmers? Case studies of some of the farmers who undertook the trials were included in the report and the majority were supportive of the RR canola and happy with the outcome of the trials. This is a sweeping statement and should be backed up by facts or attribution.

Due to my concern with the information in this article and my interpretation of the data personally, I thought it would be fair to get the opinion of an expert. I contacted Dr Jason Able from the School of Agriculture, Food & Wine at the University of Adelaide.

Dr Able made the following comments about the data in the report:

“Unfortunately the 2008 growing season was a difficult one [and] in that only two of the five national variety trails (NVT) were suitable for analysis to produce the results that are presented, in addition to two other independent trials and one independent Better Canola demonstration of RR canola in its inaugural year (see page 4). Over subsequent years, when conditions may be more favourable, additional sites will be able to be compared.

“There were a few agronomic issues that were raised from the NVT. These are important and need to be factored in when considering the performance of the Roundup Ready (RR) canola compared to the non-genetically modified (GM) canola trialled. These agronomic issues are listed on page 5. Perhaps most importantly is the point regarding variety performance. Given that previous to the NVT, moratoria were in place in both NSW and Victoria (among other states), development of superior RR canola varieties was hindered/ceased. Over time, we will see superior hybrids being released that have a superior yield advantage over their non-GM counterparts. However, this will take time as the plant breeders play ‘catch-up.’ As the Ryan family (page 20) state, “The varieties are not the latest and best genetics, again due to the fact that we had the moratorium.”

“The key messages from the NVT were that all RR canola varieties produced yields that were not significantly different from the site mean yield, and that the RR canola varieties were not significantly different from the highest yielding Triazine Tolerant (TT) and Clearfield varieties (page 7, 8 and Dr Jason Able concurs that this is correct based on the data presented in the table presented on page 8). Of equal importance (and a message that substantiates the comments made in the previous paragraph regarding variety potential) is that a number of unreleased breeding lines were also used – the data of which is promising, yet not presented in this document.

“Reading through the farmer comments it was evident that there is a great deal of support for RR canola. This is very well summarised on page 4 of the document under the heading, Positives with Roundup Ready canola in 2008.”

Dr Jason Able adds these specific comments below after having read each individual case study.

“Many of the farmers commented that they used RR canola because of the perceived financial benefit that it would bring, or the fact that RR canola resulted in less herbicide being displaced into the environment. This last comment is a particularly important comment to note. As Chris Sweeney states, “The RR canola is another tool in the box for herbicide resistance management.”

“Indeed this is one of the primary drivers as to why scientists are working towards genetically manipulating agriculturally important commodities. Through the development of transgenic strains that confer herbicide (like RR canola), insecticide, and/or disease resistance, farmers will be in a better position to improve their yield potential as a direct result of less competition from weeds, and reduced attack from insects and/or diseases.

“A further benefit of such GM crops is that they will provide a direct positive impact on the environment (through reduced herbicides and insecticides being sprayed into the air, water courses and soil).”

One thing that I (the writer of this letter) found particularly concerning after reading the case studies was the pressure farmers were feeling from non GM farmers, in addition to the usual pressures of farming life.

Your readers should have also been provided with a copy of the report to allow them to make their own judgments.

Kind regards

Susan Kirk
Journalist
www.lingo.net.au/blog

Did you find this information helpful? If you did, consider donating.

About Susan_Kirk

Susan Kirk is a nationally published science writer, with a degree in journalism. She writes extensively for Rural Press publications including Good Fruit and Vegetables and Australian Horticulture. She has TAFE qualifications in horticulture which leads to her interests in crop and horticultural science, with its spinoff to food, organic vs GM. She is a member of the Media Alliance, Queensland Writers Centre, Horticulture Media Association and the Australian Science Communicators. She writes from Kureelpa on the Sunshine Coast hinterland (Australia).