
Figure 1.
Phenological stages of microsporogenesis and blooming of almond cultivars, 2019/2020. PMC, pollen mother cells.

Figure 2.
Phenological stages of microsporogenesis and blooming of almond accessions, 2020/2021. PMC, pollen mother cells.

Figure 3.
Phenological stages of microsporogenesis and blooming of almond accessions, 2021/2022. PMC, pollen mother cells.

Figure 4.
Almond accessions categorized on the basis of the rate of microsporogenesis in 2020, 2021 and 2022.

Figure 5.
Changes in pistil length of 25 almond accessions on long shoots during winter in 2019/20 (A), 2020/21 (B), and 2021/22 (C).

Figure 6.
Flower bud development observation in controlled forcing conditions in 2019/20 (A), 2020/21 (B), and 2021/22 (C).
Table 1.
Average length of endodormancy (days) based on microsporogenesis, pistil and forcing methods for the 3 years.
| Accessions | Methods | ||
|---|---|---|---|
| Microsporogenesis | Pistil | Forcings | |
| 5/15 | 18 ± 6.66 a | 21 ± 5.69 a | 35 ± 11.06 a |
| 1/7 | 18 ± 6.66 a | 25 ± 10.59 a | 35 ± 11.06 a |
| Eriane | 18 ± 6.66 a | 21 ± 5.59 a | 35 ± 11.06 a |
| 35/29 Sóskút | 24 ± 6.43 ab | 28 ± 16.09 a | 48 ± 18.36 ab |
| Érdi édes | 24 ± 6.43 ab | 21 ± 5.69 a | 48 ± 18.36 ab |
| Akali 57/2 | 28 ± 6.03 abc | 25 ± 4.93 a | 54 ± 20.42 ab |
| Korai keményhéjú | 28 ± 6.03 abc | 30 ± 13.58 ab | 54 ± 20.42 ab |
| Sóskút 96/5 | 28 ± 6.03 abc | 25 ± 4.93 a | 54 ± 20.42 ab |
| Tétényi kedvenc | 28 ± 6.03 abc | 33 ± 20.31 ab | 54 ± 20.42 ab |
| Sóskút 66/3 | 29 ± 8.74 abcd | 29 ± 14.57 ab | 59 ± 20.50 ab |
| Budatétényi 70 | 30 ± 88.54 abcd | 30 ± 4.04 ab | 59 ± 20.50 ab |
| Tétényi bőtermő | 33 ± 6.03 abcde | 28 ± 4.36 a | 59 ± 21.08 ab |
| Tétényi rekord | 33 ± 6.00 abcde | 37 ± 18.34 ab | 59 ± 21.08 ab |
| Belona | 39 ± 4.51 bcdef | 53 ± 14.64 ab | 67 ± 22.75 ab |
| Sóskút 16/7 | 45 ± 2.89 cdefg | 53 ± 14.73 ab | 71 ± 19.70 ab |
| 26/43 | 45 ± 2.52 defg | 52 ± 12.70 ab | 71 ± 21.17 ab |
| Diósárki | 45 ± 2.52 defg | 37 ± 5.00 ab | 71 ± 19.70 ab |
| Sóskút 96/1 | 46 ± 2.65 efgh | 54 ± 3.46 abc | 72 ± 16.74 ab |
| Tétényi keményhéjú | 46 ± 2.65 efgh | 64 ± 19.29 bcd | 72 ± 17.35 ab |
| Marinada | 53 ± 3.46 fgh | 89 ± 9.29 cd | 85 ± 16.50 ab |
| Soleta | 54 ± 5.03 fgh | 93 ± 6.56 d | 88 ± 13.50 ab |
| 6/10 | 58 ± 3.03 gh | 93 ± 6.56 d | 91 ± 18.68 ab |
| 7/21 | 63 ± 2.52 h | 91 ± 7.23 d | 97 ± 19.01 b |
| Constanti | 65 ± 1.16 h | 96 ± 8.51 d | 97 ± 19.22 b |
| Vairo | 65 ± 1.16 h | 97 ± 5.69 d | 97 ± 19.22 b |