Fundamental studies on rice breeding through hybridization between Japanese and foreign varieties. X. On the occurrence of unexpected, recessive F2 segregants with colorless apiculus in F2 of the hybrids between varieties with colored apiculus.
F2 segregation in respect to anthocyanin coloration in glume apiculus was investigated in fifteen different rice hybrids originating from five crosses among Japanese varieties and ten crosses between Japanese and Indian varieties.