2014-03-132014-03-13[1989]http://hdl.handle.net/10883/3993The rice-wheat cropping pattern is extremely important in South Asia. Wheat is grown after rice on approximately 8.7 million ha in the region, accounting for about 25% of the region's wheat production. Wheat yields are law (less than 2t/ha) even where irrigation is available (Hobbs, Mann and Butler, 1987). The International Maize and Wheat Improvement Center (CIMMYT) and the International Rice Research Institute (IRRI) are developing a collaborative research program on the rice-wheat pattern in South Asia. It is the intention of CIMMYT and IRRI that this program be developed and implemented in partnership with interested National Agricultural Research Systems (NARS).PDFCIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.AGRICULTURAL SCIENCES AND BIOTECHNOLOGYReportCEREALSCULTIVATIONPHOTOSYNTHESISPLANT BREEDINGOpen Access