000 02758nam a22004577a 4500
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008 121211s2004|f| mx |p||0|| | e eeng d
022 0 _a1405-7735
040 _aMX-TxCIM
041 _aeng
072 0 _aE16
072 0 _aF30
090 _aLook under series title
100 1 _aMarasas, C.N.
_96713
245 1 4 _aThe economic impact in developing countries of leaf rust resistance breeding in CIMMYT-related spring bread wheat
260 _aMexico :
_bCIMMYT,
_c2004.
300 _aiv, 33 pages
340 _aPrinted|Computer File
490 _aEconomics Program Paper ;
_vNo. 04-01
500 _aOpen Access
520 _aThis study was undertaken to estimate the economic impact of efforts since 1973 by the International Maize and Wheat Improvement Center (CIMMYT) to develop spring bread wheat varieties resistant to leaf rust caused by Puccinia triticina. This wheat disease is of major historical and economic importance worldwide. The challenge in estimating the benefits lies in the pathogen’s ability to mutate to new races, which may infect previously resistant varieties. Thus, whereas productivity enhancement is often measured in terms of yield gains and increased supply, productivity maintenance is measured in terms of the yield losses avoided through resistance. An economic surplus approach adjusted for maintenance research and a capital investment analysis were applied to estimate the returns on CIMMYT’s investment. The results of the analysis suggest an internal rate of return of 41%. When discounted by 5%, the net present value was 5.36 billion 1990 US$, and the benefit-cost ratio 27:1. This implies that every 1990 US dollar invested in CIMMYT’s wheat genetic improvement over 40 years has generated at least 27 times its value in benefits from leaf rust resistance breeding in spring bread wheat alone. The findings of the study emphasize the importance of maintenance research in crop breeding programs.
536 _aGlobal Wheat Program|Socioeconomics Program
546 _aText in English
591 _aLSLinks|0402|AGRIS 0401|AL-Economics Program|DSpace 1
594 _aCSME01|INT0610
595 _aCPC
599 _a7535.jpg
650 1 7 _aBread
_91027
_2AGROVOC
650 1 7 _aCrop yield
_2AGROVOC
_91066
650 1 7 _aDisease resistance
_2AGROVOC
_91077
650 1 7 _aEconomic analysis
_2AGROVOC
_91088
650 1 7 _aGenetic resistance
_92277
_2AGROVOC
650 1 7 _aRusts
_2AGROVOC
_91251
650 1 7 _aVarieties
_2AGROVOC
_91303
700 1 _9315
_aSmale, M.
700 1 _aSingh, R.P.
_gGlobal Wheat Program
_8INT0610
_9825
856 4 _uhttp://hdl.handle.net/10883/1045
_yOpen Access through DSpace
942 _cBK
_2ddc
999 _c54454
_d54454