图3.5不同发育时期正常胚珠与败育胚图3.7 胚珠发育过程中细胞器的超

Figure 3.5 Normal ovules and aborted embryos at different developmental stages Figure 3.7 Ultrastructural observation of organelles during ovule development Ⅰ Figure 3.7 Ultrastructural observation of organelles during ovule development Ⅰ Observation of bead morphology

Figure 3.5 Ultra-microstructural observation of the cytostic device during the development of the embryo beads and defecation embryo 3.7 I.Figure 3.7 The superstructural observation of the cellular device during the development of the embryo beads during the development of the embryo beads

Fig. 3.5 normal ovule and abortive embryo at different developmental stages Fig. 3.7 ultrastructural observation of organelles during ovule development I Fig. 3.7 ultrastructural observation of organelles during ovule development I morphological observation of ovule<br>