Variability in callus forming ability of corn races native to Latin America and Nepal

Abstract

Thirty five Latin American, 7 Nepalese and 2 Japanese native corn races were compared as to the callus initiation and growth from the scutella of mature embryos on the modified MS medium supplemented by 5 mg 2, 4-D, 30g sucrose and 8g agar per liter, revealing great variabilities. No race was capable of plant regeneration from the callus on the medium free of 2, 4-D. Some races segregated genotypes affecting callus initiation.