Comparison of stamens and pistils of untreated (A to E) and chemical hybridization agent (CHA)-SQ-1-treated wheat plants (F to J).

<p>(A and F) the tetrad stage. (B and G) the early-uninucleate stage. (C and H) the later-uninucleate stage. (D and I) the binucleate stage. (E and J) the trinucleate stage. (E and J, top right) the 2% I₂-KI (top right) staining pollen grains. Scale bars are 0.5 mm in A to J and are 50 μm in the top right of E and J.