Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia

摘要: In Asia and Africa the poor tend to live in marginal environments where droughts floods are frequent. Global warming is expected increase frequency of these weather-induced perturbations crop production. Drought tolerance (DT) has been one most difficult traits improve genetic improvement programs worldwide. Biotechnology provides breeders with a number new tools that may help develop more drought tolerant varieties such as marker assisted selection (MAS), molecular breeding (MB), transgenic plants. This paper assesses some preliminary evidence on potential impact biotechnology using data from surveys initial DT cultivars developed through main funding rice since 1998—The Rockefeller Foundation’s Resilient Crops for Water-Limited Environments program China, India, Thailand. Yield increases 5 10 percent better than conventional or currently grown commercial it years. So far we only have experiment station yielded improved during moderate years (the year our study period South India gave inconclusive results) severe both were either not planted or, if planted, did yield. We find governments could overcome constraints spread by increasing government research take advantage biotech techniques knowledge genomics. Secondly, public scientists can make lines markers easily available private seed firms so they incorporate into their hybrids particularly areas. Third, subsidize sector production provide money state extension services produce varieties.