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Transgenic (genetically modified) crops are grown at present on more than 40 million hectares in 13 countries around the world. These `first generation' products principally comprise soybean, maize (corn) and cotton resistant to herbicides and/or insects. This review considers the wide range of `second generation' products under development and testing in many commercial and academic laboratories...
Recent rapid progress on the production of transgenic plants has led to an increasing number of field trials throughout the world by both commercial and academic groups. A brief, selective, review of progress achieved by conventional plant breeding and the expected life time of cultivars developed through this process is followed by details of recent experience gained from mutagenesis programmes,...
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