Open Access
Table 2
Cytomorphological characteristics of pollen grains in cherry representatives of Prunus L. (2005-2019)
| Genetics groups (level of ploidy) | Pollen fertility (%): average
min.–max. |
Pollen viability (%): average min.–max. |
Pollen with added apertures (%): average min.–max. |
Pollen diameter (Um): average min.–max. |
|---|---|---|---|---|
| Wild-growing forms of P. fruticosa (4x) | 86.0 45.0–93.0 |
27.4 3.9-43.4 |
0.5 0–2.0 |
39.6 31.5-51.6 |
| Varieties, hybrids of P. fruticosa × P. cerasus (4x) | 27.4 10.0-72.6 |
16.6 4.2-42.4 |
3.4 1.8-13.4 |
45.9 36.9-60.0 |
| Hybrids of P. fruticosa × P. cerasus (6x) | 52.4 15.4-81.1 |
29.7 9.0-53.0 |
56.7 33.1-78.3 |
48.4 40.2-57.6 |
| Selection specimens of P. maackii (4x) | 74.5 60.0-89.0 |
17.8 5.7-26.4 |
37 0.2-7.5 |
44.8 38.2-54.0 |
| Hybrids F3 4 of P. fruticosa × P. maackii (4x) | 27.5 3.3-52.6 |
14.5 1.8-47.6 |
42.5 3.9-74.3 |
46.9 33.9-60.0 |
| Hybrids F34 of P. fruticosa × P. maackii (6x) | 55.5 8.1-76.6 |
21.9 4.2-41.5 |
47.6 7.2-87.8 |
48.2 38.4-62.4 |
| Other hybrids (3x) | 44 0.7-9.7 |
18 0.4-2.8 |
49.8 7.8-89.7 |
– |
| Other hybrids (5x) | 34.0 8.1-49.9 |
7.6 3.6-17.0 |
– | – |
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