Table 1.1 Average yield (qt/ha)of important cereals in selected countries Crop Country 1948/52 1997 Yield as %o of 1948/52 heat 18.3 663 358 bulgaria l2.4 29.I 235 ogoslavia 1.4 36.5 Hungary 13.8 40.2 112 26.7 238 Romania 102 297 291 66 27.1 410 R Jar 42.5 631 USA 256 661 258 Philippines 11.8 283 240 Thailand 13.1 22.6 Indonesia 16.1 45.6 283 Ind 11.1 290 Maize USA 249 797 320 Ital 184 93,2 506 Hungary 17.7 59.6 337 france l3.6 90.7 Yugoslavia 13.4 373 278 Bulgaria 9.8 30.0 306 Romania 41.7 515 Source:*FAO Production year books**FAO quarterly Bulletin of Statistics, 1998