Rice joined quite late the club of high-yielding, input-responsive crops such as wheat, barley, maize, or potato. A few years after the International Rice Research Institute (IRRI) was installed in the Philippines in 1960, a new, short-statured, high-tillering, relatively photoperiod-insensitive and highly N-responsive plant type with erect leaves and high harvest index (HI) emerged. The widely adopted variety IR8 revolutionized irrigated rice production in the tropics with more than 10 t ha-1 grain yield potential, thereby tripling rice yields in many Asian countries (De Datta 1981). Morphologically similar types adapted to the temperate climate followed and boosted rice production in Japan, Korea, and China and allowed the world’s highest national yields in the United States and Australia (Hill et al. 1991).
|Title of host publication||Photoassimilate Distribution Plants and Crops Source-Sink Relationships|
|Editors||E. Zamski, A.A. Schaffer|
|Publication status||Published - 1996|