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 electron microscopy. https://www.roneverhart.com/L-Homme-Ideal-Cologne-by-Guerlain/