Fig. 1. Iodine staining of pollen from hybrids between A3FL3 (Rf3Rf3rf4rf4) and (A) IS1112C (Rf3Rf3Rf4Rf4), (B) SC512 (Rf3Rf3Rf4Rf4), and (C) SC214 (rf3rf3Rf4Rf4) and between A3FL4 (rf3rf3Rf4Rf4) and (D) IS1112C, (E) SC512, and (F) SC214. All show approximately 50% fully stainable pollen except C (25%) and F (0%).