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Technical change in maize production: a global perspective
(CIMMYT, 1994)
The stages of technological change in maize production in commercial and small-scale semisubsistence systems are discussed and variation in the use of improved varieties/hybrids and adoption of associated inputs are noted. ...
Working Paper
Sources of growth in wheat yields in Pakistan's Punjab, 1965-2000: is there a sustainability issue?
(CIMMYT, 1990)
Wheat yields rose rapidly in the Punjab of Pakistan during the Green Revolution decade, 1966-76, but the rate of growth has been significantly slower in the decade that followed. Official statistics indicate that the yield ...