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Potential Impact of Biotechnology on Adaption of Agriculture to Climate Change: The Case of Drought Tolerant Rice Breeding in Asia
Pray, Carl1; Nagarajan, Latha1; Li, Luping2; Huang, Jikun2; Hu, Ruifa3; Selvaraj, K. N.4; Napasintuwong, Ora5; Babu, R. Chandra4
2011-10-01
Source PublicationSUSTAINABILITY
Volume3Issue:10Pages:1723-1741
AbstractIn 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.
SubtypeArticle
KeywordDrought Tolerant Rice Climate Change Biotechnology Asia
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI ; SSCI
Language英语
WOS SubjectEnvironmental Sciences ; Environmental Studies
WOS IDWOS:000208763700004
PublisherMDPI AG
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68050
Collection中国科学院地理科学与资源研究所
Corresponding AuthorPray, Carl
Affiliation1.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
Recommended Citation
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.
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