--------------------------------------------- THE BridgeNews FORUM: On farming, farm policy and related agricultural issues. --------------------------------------------- * Suspicious British Public Isn't Likely To Believe That Rogue Crops Posed No Danger To Environment By David Walker, agricultural economist BridgeNews Norwich, England--The acknowledgment that British farmers have unwittingly been planting very small quantities of genetically modified oilseed rape for two years is no tragedy because there has been no proven case against this biotechnology. And even if there were, the specifics of the British situation are such that the chance of any adverse consequence in either an environmental or a food-safety context is minimal. But many British people are suspicious of the technology and view no risk worth taking, so the incident has become a major publicity disaster for those working for acceptance of the technology. The timing was also unfortunate -- on the day the British Food Standards Agency made the announcement about the oilseed rape crops, public sensitivities were being raised by comments against genetic modification from Prince Charles. The response of politicians and activists has been diverse, confusing and generally reminiscent of the mad-cow disease epidemic 10 years ago. This is largely because those who oppose the technology have taken advantage of the opportunity to sow the seeds of doubt. The oilseed rape, which also was planted in smaller quantities in Sweden, France and Germany, was imported from Canada and contained about 1 percent of a rogue variety with a genetically modified parent. The intended variety was a cross between a male sterile-female line and a male fertile line with a restorer gene. This restorer gene is necessary to make the intended variety fertile. Because the genetically modified male parent did not have the restorer gene, the rogue variety is male-sterile. It will not produce pollen and is, therefore, of no consequence to the environment. The food-safety issue is equally benign. Oilseed rape is consumed as vegetable oil, margarine, salad oil and like products, with the residual meal being consumed by livestock, very much as soybean products are. Because the oil is a refined product, it has next to no protein or genetic material, modified or otherwise. The meal is valued for its protein content, which is thoroughly digested by livestock. The near-hysteria over this ''escape'' of genetically modified organisms seems totally out of place. Of concern was the level of varietal impurity, reported to be about 1 percent. But because the seed production involved hybridization, measures to prevent varietal impurity of other crops had already been taken. The isolation distance, the distance between the crop and other oilseed rape crops, was 800 meters, about half a mile, instead of the usual 100 meters required for conventional seed production in Canada. The danger of out-crossing, the pollination of one variety by another, has for many years been recognized in Alberta, where the imported seed was produced. It is seen there as a particular challenge to varietal purity for both commercial and seed oilseed-rape production. The challenge, however, arises not as much from the spread of pollen from one field to another as from ''volunteer'' oilseed rape within a crop. A single oilseed rape seed plant typically produces in excess of 500 seeds and the seed pods are very susceptible to shattering before harvesting. Also, the seed is very small and round which makes it difficult to contain during and after threshing. Relatively large numbers of seeds, therefore, are left on the ground after harvest. Care is necessary to control the volunteer plants that germinate from the seeds left on the ground. The existence of volunteer oilseed rape in the Canadian seed crop in question, if this was the case, should have been picked up during the process of field inspection for seed certification. This is notwithstanding the fact that out-crossing with volunteer oilseed rape would, in this instance of hybrid production, have created sterile seed and not been of any relevance to varietal purity. It is also worthy of note that the crop was grown in 1998. At that time, concern over genetically modified crops in Europe was about the delay in regulating their use rather than representing any significant opposition. There would have appeared to be little harm in shipping a small percent of sterile genetically modified material. This does not excuse those responsible, but rather explains the occurrence of an event that would be considered a major blunder at a later date and halfway around the world. Most of this is, of course, difficult to get across in a report in the mass media, nor is it the kind of copy that sells itself. Attention has been centered on more sensational matters. Will this result in the realization that a Britain free of genetic modification is an unrealistic objective, or finally nail down the coffin for this biotechnology in Europe? Probably neither. It has certainly given breath to the tiring campaign against genetic modification. A more sober assessment of this technology is probably that it is not the devil that many portray it to be. The hope is that every time the issue of genetically modified crops hits the headlines, a little understanding rubs off and eventually the truth is known. At least this was the experience with mad cow disease, an issue that is increasingly seen in Britain as a French problem. But a big political challenge may yet emerge. The British government has so far taken the high ground on the issue, with its science-based policy, and robustly defended itself over this recent development. It has, however, not been a popular policy. As the Labor Party's lead in opinion polls slips and the next election approaches, the temptation to change course will increase. End DAVID WALKER, an agricultural economist, lives on his family's farm outside Norwich, England. He recently served as senior economist in London for the Home-Grown Cereals Authority and previously was executive director of the Alberta Grain Commission in Canada. He also maintains a Web site at http://www.openi.co.uk/. His views are not necessarily those of BridgeNews, whose ventures include the Internet site http://www.bridge.com/. OPINION ARTICLES and letters to the editor are welcome. Send submissions to Sally Heinemann, editorial director, BridgeNews, 3 World Financial Center, 200 Vesey St., 28th Floor, New York, N.Y. 10281-1009. You may also call (212) 372-7510, fax (212) 372-2707 or send e-mail to opinion@bridge.com. EDITORS: A color photo of the author is available from KRT Photo Service. [Begin BridgeLinks] A COMPLETE SUMMARY of recent opinion articles is available on BridgeStation. (Story .5400) [SLUG: GENETICALLY-MODIFIED-CROPS:BN _ op-ed] [End BridgeLinks]
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