Abnormal development of tapetum and microspores induced by chemical hybridization agent SQ-1 in wheat.
Chemical hybridization agent (CHA)-induced male sterility is an important tool in crop heterosis.To demonstrate that CHA-SQ-1-induced male sterility is associated with abnormal tapetal and microspore development, the cytology of CHA-SQ-1-treated plant anthers at various developmental stages was studied by light microscopy, scanning and transmission