plant genes News
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Sloppy seed-sorting main culprit in GM crop escapes
Careless handling of seeds may be the key reason for the unintended spread of genetically modified (GM) crops, a study has found. The discovery challenges the widespread belief that the main source of GM contamination is the transfer of pollen by bees from GM crops to non-GM counterparts in neighbouring fields. Human error during seed production and handling is the more likely culprit, say the ...
By SciDev.Net
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Biodiversity is the basis for Integrated Pest Management
Integrated Pest Management (IPM) is now the norm in agriculture and horticulture. All stakeholders – national and European government agencies and public bodies, agriculture and horticulture organisations, businesses, universities and research institutes – agree with this statement. "More biodiversity and the use of resistant plants are crucial to the successful implementation of ...
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Some but not all plants can defend themselves against disease on saline soil
Some plants with resistance against a specific disease are also able to defend themselves effectively when they are stressed due to, for example, drought or saline soil. At the same time, the resistance of other plants no longer functions in these very same conditions. Although this had been assumed for some time, Wageningen scientist Christos Kissoudis is the first person to show why. As a ...
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Genetics not enough to increase wheat production
The deep gene pool that has allowed wheat to achieve ever increasing gains in yield may be draining. Crop scientists estimate that 50% of the gain in wheat production over the past century has been due to breeding. According to a new study, however, that improvement has been slowing since the late 1980s, with little chance that future increases in yield can be met by breeding efforts alone. The ...
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Crossbreeding GM crops may increase fitness of wild relatives
A new study has investigated the effects of interbreeding a genetically modified squash crop with its wild relative. The findings demonstrate that it could cause wild or weedy relatives to become more resistant to disease. Genetic Modification (GM) can be used to develop crops that are resistant to specific pests. However, there are concerns that if a GM crop interbreeds with its wild or weedy ...
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Maize seedlings predict drought Tolerance
Scientists have developed a new method for measuring drought tolerance in maize. By comparing the shoot-to-root ratio in seedlings stressed by low water, scientists can predict whether a plant has the right mix of genes for adapting to drought conditions. The ideal drought-resistant maize should have a higher ratio of root surface area compared to leaves and stems. Developing enough adult plants ...
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As seas rise, saltwater plants offer hope farms will survive
On a sun-scorched wasteland near India's southern tip, an unlikely garden filled with spiky shrubs and spindly greens is growing, seemingly against all odds. The plants are living on saltwater, coping with drought and possibly offering viable farming alternatives for a future in which rising seas have inundated countless coastal farmlands. Sea rise, one of the consequences of climate change, ...
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