[1] Wageningen Univ & Res, Farming Syst Ecol Grp, POB 430, NL-6700 AK Wageningen, Netherlands
[2] Wageningen Univ, Knowledge Technol & Innovat Grp, Hollandseweg 1, NL-6706 KN Wageningen, Netherlands
[3] Royal Trop Inst KIT, Mauritskade 64, NL-1092 AD Amsterdam, Netherlands
[4] Int Maize & Wheat Improvement Ctr CIMMYT, Sustainable Intensificat Program, House 10-B,Rd 53,Gulshan 2, Dhaka 1213, Bangladesh
[5] CGIAR Res Program MAIZE, House 10-B,Rd 53,Gulshan 2, Dhaka 1213, Bangladesh
[6] Int Maize & Wheat Improvement Ctr CIMMYT, Sustainable Intensificat Program, Apdo Postal 6-641, Mexico City, DF 06600, Mexico
[7] Int Maize & Wheat Improvement Ctr CIMMYT, 12-5 Km Peg Mazowe Rd, Harare, Zimbabwe