Rates of yield gain and returns to investment in wheat breeding research are estimated for Pakistan's Punjab for the period since the introduction of semidwarf varieties. Analysis of two comprehensive data sets indicates that wheat breeders have maintained a rate of yield gain in newer releases...

Dawit Alemu: DCA, Ethiopia

The introduction of green revolution technologies in wheat, and rice production in Asia, in the mid 1960s reversed the food crisis, and stimulated rapid agricultural, and economic growth. But the sustainability of this intensification strategy is being questioned, in light of the heavy use of...