Which wheat varieties were introduced from Mexico to India?
During 1963-64 Indian scientists tested Mexican dwarf wheats at IARI and multiple coordinated centers. Among introduced germplasm, Lerma Rojo 64 and Sonora 64 consistently produced 4 to 5 tons per hectare compared to 0.8 to 1 ton from tall Indian landraces NP4 and NP52. Sonora 64 itself descended from cross Yaqui 50 x Norin 10-Brevor, carrying Rht genes for reduced height. From a yellow grain mutant of Sonora 64 selected under gamma irradiation in India, Kalyan Sona was developed by S.P. Kohli, noted for amber grain and wide adaptation. Sonalika was selection from same Mexican bulk, later desi
Ref: ICAR-IARI Bulletin 1965 Kalyan Sona release; Vikas Pedia Wheat Green Revolution; NBPGR History of introduction 1963.
