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

	Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia
	Pray, Carl 1; Nagarajan, Latha 1; Li, Luping 2; Huang, Jikun 2; Hu, Ruifa 3; Selvaraj, K. N.4; Napasintuwong, Ora 5; Babu, R. Chandra 4
刊名	SUSTAINABILITY
	2011-10-01
卷号	3 期号:10 页码:1723-1741
关键词	Drought Tolerant Rice Climate Change Biotechnology Asia
文献子类	Article
英文摘要	In Asia and Africa the poor tend to live in marginal environments where droughts and floods are frequent. Global warming is expected to increase the frequency of these weather-induced perturbations of crop production. Drought tolerance (DT) has been one of the most difficult traits to improve in genetic crop improvement programs worldwide. Biotechnology provides breeders with a number of new tools that may help to develop more drought tolerant varieties such as marker assisted selection (MAS), molecular breeding (MB), and transgenic plants. This paper assesses some preliminary evidence on the potential impact of biotechnology using data from surveys of the initial DT cultivars developed through one of the main programs in Asia that has been funding Water-Limited Environments program in China, India, and Thailand. Yield increases of DT rice varieties are 5 to 10 percent better than conventional varieties or currently grown commercial varieties than it has been in years. So far we only have experiment station evidence that DT varieties yielded better than conventional or improved varieties during moderate drought years (the one drought year during our study period in South India gave inconclusive results) and in severe drought both the DT and the conventional varieties were either not planted or, if planted, did not yield. We find that the governments could help overcome some of the constraints to the spread of DT cultivars by increasing government funding of DT research programs that take advantage of new biotech techniques and new knowledge from genomics. Secondly, public scientists can make breeding lines with DT traits and molecular markers more easily available to the private seed firms so that they can incorporate DT traits into their commercial hybrids particularly for poor areas. Third, governments can subsidize private sector production of DT seed or provide more government money for state extension services to produce DT varieties.
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000208763700004
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/68049]
专题	中国科学院地理科学与资源研究所
通讯作者	Pray, Carl
作者单位	1.Rutgers State Univ, Dept Agr Food & Resource Econ, Sch Environm & Biol Sci, New Brunswick, NJ 08901 USA 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing 100101, Peoples R China 3.Beijing Inst Technol, Dept Econ & Management, Beijing 100081, Peoples R China 4.Tamil Nadu Agr Univ, Coimbatore 641003, Tamil Nadu, India 5.Kasetsart Univ, Bangkok 10900, Thailand
推荐引用方式 GB/T 7714	Pray, Carl,Nagarajan, Latha,Li, Luping,et al. Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia[J]. SUSTAINABILITY,2011,3(10):1723-1741.
APA	Pray, Carl.,Nagarajan, Latha.,Li, Luping.,Huang, Jikun.,Hu, Ruifa.,...&Babu, R. Chandra.(2011).Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia.SUSTAINABILITY,3(10),1723-1741.
MLA	Pray, Carl,et al."Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia".SUSTAINABILITY 3.10(2011):1723-1741.