Wall, G.W., T.J. Brooks, N.R. Adam, A.B. Cousins, B.A. Kimball, P.J. Pinter Jr. et al. 2001. Leaf photosynthesis and water relations of grain sorghum grown in Free-Air CO2 Enrichment (FACE) and water stress. New Phytologist 152:231-248.

Walter, A., and C. Sam. 1999. Fruits of Oceania. IRD, Paris and ACIAR, Australia.

Walters, K.S. and H.J. Gillett. 1998. 1997 IUCN red list of threatened plants. World Conservation Monitoring Centre. IUCN, Gland, Switzerland.

Wang, S., D.R. Just and P. Pinstrup-Andersen. 2006. Damage from secondary pests and the need for refuge in China. In R.E. Just et al. (ed) Regulating agricultural biotechnology: Economics and policy. Nat. Resour. Manage. Policy 30:625-637.

Wanyera, R., M.G. Kinyua, Y. Jin, and R.P. Singh. 2006. The spread of stem rust caused by Puccinia graminis f. sp. tritici, with virulence on Sr31 in wheat in Eastern Africa. Plant Dis. 90(1):113.

Warren, D.M., L.J. Slikkerveer, and S.O. Titilola (ed) 1989. Indigenous knowledge systems: Implications for agriculture and international development. Studies in Tech. Social Change No. 11. Iowa State Univ., Ames, IA.

Warren, D. M., L.J. Slikkerveer, and D. Brokensha (ed) 1995. The cultural dimension of development: Indigenous knowledge systems. Intermediate Tech. Publ., London.

Warren, M.S., J.K. Hill, J.A. Thomas, J. Asher, R. Fox, B. Huntley et al. 2001. Rapid responses of British butterflies to opposing forces of climate and habitat change. Nature 414(6859):65-69.

Waruhiu, A.N., J. Kengue, A.R. Atangana, Z. Tchoundjeu, and R.R.B. Leakey, 2004. Domestication of Dacryodes edulis: 2. Phenotypic variation of fruit traits in 200 tress from four populations in the humid lowlands of Cameroon. Food Agric. Environ. 2:340-346.

Watkins, F. 2004. Evaluation of DFID development assistance: Gender equality and women's empowerment DFID's experience of gender mainstreaming: 1995 to 2004.. Available at http://www.oecd.org/ dataoecd/47/52/35074862.pdf. Evaluation Dep., East Kilbride, Glasgow.

Watt, A.D., N.E. Stork, and B. Bolton 2002. The diversity and abundance of ants in relation to forest disturbance and plantation establishment in southern Cameroon. J. Appl. Ecol. 39:18-30.

Watt, A.D., N.E. Stork, C. McBeath, and G.R. Lawson. 1997. Impact of forest management on insect abundance and damage in a lowland tropical forest in southern Cameroon. J. Appl. Ecol. 34:985-998.

WCD. 2000. Dams and development: A new framework for decision-making. The report of the World Commission on Dams. Available at http://www.damsreport.org/wcd_overview.htm [Geo-1-033]. Earthscan, London.

WCRF/AICR. 1997. Food, nutrition and the prevention of cancer: A global perspective.

Available at http://www.wcrf.org/research/ fnatpoc.lasso. World Cancer Res. Fund Int., Amer. Inst. Cancer Res., Washington DC.

Weber, J. 2005. Access to the benefits of sharing, p. 9-10 In Biodiversity and local ecological knowledge in France. INRA, Paris.

Weber, J.C., C. Sotelo Montes, H. Vidaurre, I.K. Dawson, and A.J. Simons. 2001. Participatory domestication of agroforestry trees: An example from the Peruvian Amazon. Dev. Practice 11(4):425-433.

Weber, M.L. 2001. Markets for water rights under environmental constraints. J. Environ. Econ. Manage. 42(1):53-64.

Welch, R.M., and R.D. Graham. 2000. A new paradigm for world agriculture: Productive, sustainable, nutritious, healthful food systems. Food Nutr. Bull. 21(4):361-366.

Welch, S., J. Roe, and Z. Dong. 2003. A genetic neural network of flowering time control in arabidopsis thaliana. Agron. J. 95:71-81.

West, T.O., and G. Marland. 2002. A synthesis of carbon sequestration, carbon emissions, and net carbon flux in agriculture: Comparing tillage practices in the United States. Agric. Ecosyst. Environ. 91:217-232.

West, T.O., and W.M. Post. 2002. Soil organic carbon sequestration rates by tillage and crop rotation: A global data analysis. J. Soil Sci. Soc. America 66:1930-1946.

Westerman, P.R., M. Liebman, F.D. Menalled, A.H. Heggenstaller, R.G. Hartzler, and P.M. Dixon. 2005. Are many little hammers effective? Velvetleaf (Abutilon theophrasti) population dynamics in two- and four-year crop rotation systems. Weed Sci. 53:382-392.

WHO. 1986. Informal consultation on planning for the prevention of pesticide poisonings. Doc. VBC/86.926. WHO, Geneva.

WHO. 2002. Global strategy for food safety: safer food for better health. WHO, Geneva.

WHO. 2003. Obesity and overweight. Fact sheet. WHO Global strategy on Diet, Physical activity and Health. Available at http://www.who.int/dietphysicalactivity/ media/en/gsfs_obesity.pdf

WHO. 2005a. Global database on Body Mass Index. Available at http://www.who.int/ncd _surveillance/infobase/web/InfoBaseCommon/

WHO. 2005b. Modern food biotechnology, human health and development: An evidence based study. Available at http://www.who.int/ foodsafety/publications/biotech/biotech _en.pdf

WHO. 2005c. Guidelines on food fortification with micronutrients for control of micronutrient malnutrition. WHO, Geneva.

WHO. 2006. Fuel for life: Household energy and health. WHO, Geneva.

WHO/FAO, 2003. Diet, nutrition and the prevention of chronic diseases. Rep. of the joint WHO/FAO expert consultation. WHO Technical Rep. Series, No. 916 (TRS 916).

Wibawa, G., L. Joshi, M. van Noordwijk, and E. Penot. 2006. Rubber-based agroforestry systems (RAS) as alternatives for rubber monoculture system. IRRDB Conf.,

Vietnam, 2006. Int. Rubber Res. Dev. Board, Malaysia.

Wiley, T., and M. Seymour. 2000. Systems for browsing sheep on the perennial fodder shrub Tagasaste. Agriculture Western Australia FarmNote 49/2000, Dep. Agric., Western Australia.

Willer, H., and M. Yussefi (ed) 2006. The world of organic agriculture — statistics and emerging trends. IFOAM, Bonn, Germany and FiBL, Frick, Swit.

Willett, W. 2006. Health effects of trans fatty acids intake. Testimony 30 Oct 2006 before NYC Board of Health. Available at http:// www.hsph.harvard.edu/nutritionsource/ Printer%20Friendly/Health_Effects_Trans _Fat.pdf.

Williams, C.E., N. Collier, C.C. Sardesai, H.W. Ohm, and S.E. Cambron, 2003. Phenotypic assessment and mapped markers for H31, a new wheat gene conferring resistance to Hessian fly (Diptera: Cecidomyiidae). Theor. Appl. Genetics 107:1516-23.

Wilson, E.O. 1992. The diversity of life. Penguin, London.

Wilson, J., R.C. Munro, K. Ingleby, P.A. Mason, J. Jefwa, P.N. Muthoka et al. 1991. Tree establishment in semi-arid lands of Kenya: Role of mycorrhizal inoculation and water-retaining polymer. For. Ecol. Manage. 45:153-163.

Wilson, J.S., and T. Otsuki. 2001. Global trade and food safety: Winners and losers in a fragmented system. DECRG, World Bank, Washington DC.

Witcombe, J.R. 1999. Do farmer-participatory methods apply more to high potential areas than to marginal ones ? Outlook Agric. 28:43-49.

Witcombe, J.R., R. Petre, S. Jones, and A. Joshi. 1999. Farmer participatory crop improvement. IV. The spread and impact of a rice variety identified by participatory varietal selection. Exp. Agric. 35:471-487.

Witcombe, J.R., K. Joshi, R. Rana, and D.S. Virk. 2001. Increasing genetic diversity by participatory varietal selection in high potential production systems in Nepal and India. Euphytica 122:575-588.

Witcombe, J.R., A.J. Packwood, A.G.B. Raj, and D.S. Virk, 1988. The extent and rate of adoption of modern cultivars in India. p. 53-68. In J.R. Witcombe et al. (ed) Seeds of choice. IDTG Publ., London.

Witcombe, J.R., D. Virk, and J. Farrington (ed) 1998. Seeds of choice. ITDG Publ., London.

Witt, H., R. Patel and M. Schnurr. 2006. Can the poor help GM crops? Technology, representation and cotton in the Makhatini Flats, South Africa. Rev. Afric. Pol. Econ. 109:497-513.

Wolfenbarger, L.L., and P.R. Phifer 2000. The ecological risks and benefits of genetically engineered plants. Science 290:2088-2093.

Wong, C. 2004. Saskatchewan organic farmers file lawsuit against Monsanto and Aventis. The Canadian Press, 10 Jan 2004.