1.

Record Nr.

UNINA9910456145903321

Titolo

Drought frontiers in rice [[electronic resource] ] : crop improvement for increased rainfed production / / edited by R. Serraj, J. Bennett, and B. Hardy

Pubbl/distr/stampa

Hackensack, N.J., : World Scientific, c2009

ISBN

1-282-75844-6

9786612758447

981-4280-01-1

Descrizione fisica

1 online resource (409 p.)

Altri autori (Persone)

SerrajRachid

BennettJ

HardyB

Disciplina

633.1/8

633.18

Soggetti

Rice - Genetics

Rice - Genetic engineering

Rice - Breeding

Grain - Drought tolerance

Electronic books.

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references.

Nota di contenuto

Contents; Foreword; Rice drought-prone environments and coping strategies; Drought: economic costs and research implications Sushil Pandey and Humnath Bhandari; Drought: definition, coping strategies, and consequences2; Frequency of drought and economic loss3; Household-level consequences of drought; Implications; Agricultural research; Technology design considerations; Complementary options; Concluding remarks; References; Modeling spatial and temporal variation of drought in rice production Robert J. Hijmans and Rachid Serraj; Defining drought; Systems analysis and simulation

Distribution of rice production systems and rainfallWater as a yield-limiting factor; The potential benefits of drought tolerance; Discussion; References; Recent progress in breeding and genetics of drought



resistance; Rice germplasm development for drought-prone environments: progress made in breeding and genetic analysis at the International Rice Research Institute G.N. Atlin, R. Venuprasad, J. Bernier, D. Zhao, P. Virk, and A. Kumar; Target environments for drought germplasm improvement; Physiological and agronomic effects of drought, and implications for germplasm improvement

Screening cultivars for tolerance of acute stress at flowering versus intermittent stressCultivar development for drought-prone environments; Developing cultivars with improved lowland drought tolerance for bunded upper terraces; Developing cultivars with improved drought tolerance for unbunded uplands; Designing cultivar development programs that can combine drought tolerance with yield potential; Prospects for marker-aided selection for drought tolerance in rice; Conclusions; References

Drought research at WARDA: current situation and prospects  M. Sié, K. Futakuchi, H. Gridley, S. Mande, B. Manneh, M.N. Ndjiondjop, A. Efisue, S.A. Ogunbayo, M. Moussa, H. Tsunematsu, and H. SamejimaIdentification of genetic sources for drought resistance; WARDA-JIRCAS Drought Project; Generation of breeding and mapping populations; Evaluation of breeding lines developed; Conclusions and prospects; References; Drought resistance characters and variety development for rainfed lowland rice in Southeast Asia  Shu Fukai, Jaya Basnayake, and Ouk Makara; Drought resistance characters

Characterizing the water environmentImproving yield in drought-prone environments; Current status in research and development; References; Molecular breeding for drought-tolerant rice (Oryza sativa L.): progress and perspectives  Zhi-Kang Li and Yong-Ming Gao; Mechanisms of drought tolerance in rice; Genetic basis of DT in rice; Breeding for improved DT in rice; Improving rice DT by backcross breeding and designed QTL pyramiding; References; Recent efforts to improve drought resistance of rice in Brazil Flavio Breseghello, Cleber Moraes Guimarães, and Beatriz da Silveira Pinheiro

Early studies on drought resistance at Embrapa

Sommario/riassunto

The success of the Green Revolution in closing the gap between world population and food production was principally achieved by increasing crop productivity in favorable areas. However, this success has been limited in the rainfed systems, which are prone to frequent droughts and other abiotic stresses. Worldwide, drought affects approximately 23 million hectares of rainfed rice. Varieties combining improved drought resistance with high yield under favorable conditions and quality characteristics preferred by farmers are the most promising and deliverable technologies for alleviating poverty