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报道了桃花粉发育的过程，将其划分为３个阶段９个时期。１．单核阶段：①单核中央球形期，②单核中央显沟期，③单核靠边期，④单核趋中期；２．有丝分裂阶段：⑤有丝分裂期，包括前、中、后期；３．二核至二细胞阶段：⑥二核期，⑦二胞期，⑧胞中胞球形期，⑨胞中胞三角球形期。本文还着重讨论了双子叶桃和单子叶禾本科植物花粉发育的差异，提出了正确区分两个“单核中央”的形态学和细胞学的标志，为果树花药培养准确选择采样接种适期，提供了可靠的依据。
Reported the process of peach pollen development, divided into three stages and nine periods. 1. Mononuclear stage: ① mononuclear central spherical phase, ② mononuclear central ditch, ③ mononuclear margin, ④ mononuclear mid-term; Mitotic stage: ⑤ Mitosis, including before, during and after; 3. Two nuclei to two-cell stage: â ’¢ binuclear phase, â’ ¢ two cells, â ’¢ cells in the spheroid phase, â’ cells in the triangle triangle. This paper also focuses on the differences of pollen development between dicotyledonous peach and monocotyledonous grassy plants, and puts forward the method of correctly distinguishing the morphological and cytological signs of two “mononuclear central” Provide a reliable basis.