Bean grower Manuel Alvarado is part of the majority of producers in Mexico who consider it unnecessary to introduce genetically modified varieties of beans, as the government is promoting.
“There is no study showing superior yields compared with hybrid or regional seeds. People are still unaware of what transgenic products are, nor the effects they have, but some of the things that are known about them are not good,” said Alvarado, the head of Enlaces al Campo, a bulk beans sales company in the city of Fresnillo, in the northern state of Zacatecas.
Genetically modified organisms (GMO) may cause a number of problems, among them the possibility that “transgenics will contaminate native and hybrid seeds, which have higher germination rates than transgenics,” Alvarado told IPS.
Bean farmers in Mexico face a context of overproduction, low prices and increasing imports, in a country where there are 300,000 bean producers, half of them small scale farmers.
Alvarado has obtained yields of between 12 and 16 tonnes per hectare from 10 native varieties of beans on 15 hectares of land. He has also tested 28 commercial maize hybrid seeds, obtaining up to 15 tonnes per hectare on 14 hectares of land.
In 2013, beans were grown on an area of 1.83 million hectares in Mexico and 1.28 million tonnes were produced, with overall yields of 1.79 tonnes per hectare, according to the Observatorio de Precios (Price Observatory), an independent group providing information and analysis for food producers and consumers.
The northern states of Zacatecas, Durango and Chihuahua are the main producing areas.
Cultivation of GMO in Mexico is turning away from concentration on maize and soybeans, after various legal appeals in 2013 banned their planting. The Mexican government and the industry are expanding their sights now to include beans and wheat, among other crops.
On Apr. 22, the National Institute of Forestry, Agricultural and Livestock Research (INIFAP) presented an application to the National Service for Agri-Food Health, Safety and Quality (SENASICA) for experimental planting of transgenic beans (Phaseolus vulgaris L.) on 0.12 hectares in the central state of Guanajuato.
The application is based on the research paper “Resistance to Colletotrichum lindemuthianum in transgenic common bean expressing an Arabidopsis thaliana defensin gene,” funded by the National Council for Science and Technology and the Agriculture ministry and published in 2013 in the Revista Mexicana de Ciencias Agrícolas.
The five authors, scientists at INIFAP, engineered five independent lines and 20 transgenic bean plants expressing the defensin gene. These plants proved resistant to two strains of the pathogenic fungus Colletotrichum lindemuthianum, which causes the fungal disease anthracnose. Non-genetically modified plants were not resistant.
Anthracnose, rust, angular leaf spot and root rot are diseases that affect beans in Mexico, which has 70 different varieties of the crop.
Silvia Ribeiro, the Latin America director of the Action Group on Erosion, Technology and Concentration (ETC Group), complained about the use of public funds to promote this kind of research which she views as a new “trick” to take over staple food production.
“The use of public resources for GMO research increases dependence on technology. It would be better to devote these funds to supporting the vast reservoir of wisdom on bean farming among campesinos (small farmers), and to promote preventive pest management and agroecosystems,” she told IPS.
SENASICA has received four applications this year for experimental and pilot plots of transgenic maize in 10 hectares in the northwestern staes of Sonora and Sinaloa from Pioneer, a U.S. seed company. A further four pilot project applications for 85,000 hectares of genetically modified cotton in different states have been made by U.S. giant Monsanto.
The International Maize and Wheat Improvement Centre has also presented five applications for experimental planting of transgenic wheat on half a hectare in the central state of Morelos, adjacent to Mexico City.
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