Table 1 Stages of anther and pollen development in diploid potato cultivar Criolla Colombia (Solanum tuberosum Phureja Group).
Stage | Bud | Anther | Landmark stage of development | |
|---|---|---|---|---|
Length \(\overline{X }\)± SD \((\mathrm{mm})\) | Length \(\overline{X }\) ± SD \((\mathrm{mm})\) | Diameter \(\overline{X }\)± SD \((\mathrm{mm})\) | ||
0 | 0.912 ± 0.040 | 0.225 ± 0.038 | 0.086 ± 0.008 | Primordia |
1 | 1.425 ± 0.125 | 0.488 ± 0.105 | 0.260 ± 0.022 | Formation of anther lobes and primary parietal and sporangia cells |
2 | 1.842 ± 0.115 | 0.796 ± 0.158 | 0.454 ± 0.037 | Layers: epidermis, endothecium, midline, and tapetum |
3 | 2.666 ± 0.175 | 1.566 ± 0.271 | 0.652 ± 0.024 | Sporangial cells |
4 | 3.616 ± 0.215 | 2.411 ± 0.147 | 0.859 ± 0.023 | Pollen mother cell |
5 | 4.596 ± 0.303 | 2.755 ± 0.090 | 1.039 ± 0.022 | Dyads |
6 | 5.618 ± 0.205 | 3.566 ± 0.205 | 1.256 ± 0.026 | Tetrads |
7 | 7.093 ± 0.234 | 4.445 ± 0.258 | 1.456 ± 0.024 | Young microspores |
8 | 8.232 ± 0.366 | 5.458 ± 0.264 | 1.664 ± 0.022 | Late microspores |
9 | 10.173 ± 0.442 | 6.330 ± 0.121 | 1.844 ± 0.022 | Mature pollen |
10 | 13.308 ± 1.156 | 6.864 ± 0.095 | 2.052 ± 0.021 | Anther dehiscence: pollen release |
