Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

The height of the shoot of regenerants at different concentrations of BAP for fifth, seventh and 10th passages by the overlay passage method, mm
| Variety | BAP concentration, mg/l | ||||
|---|---|---|---|---|---|
| 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | |
| Hazelnut | |||||
| Trapezund | 92/90/90* | 98/94/96 | 91/83/79 | 71/66/62 | 61/51/- |
| Jefferson | 100/102/99 | 105/107/99 | 98/95/83 | 89/76/74 | 70/65/61 |
| Tonda Gentile Romana | 98/97/100 | 96/98/97 | 93/88/85 | 73/58/53 | 59/52/50 |
| Almond | |||||
| E5 Borozan | 76/74/78 | 99/98/98 | 98/64/52 | 51/43/41 | 36/-/- |
| M41 Alex | 71/73/75 | 102/103/96 | 94/61/52 | 46/38/36 | 33/-/- |
| Georgia | 69/66/68 | 97/98/96 | 84/55/51 | 41/32/30 | 30/22/- |
| Louise | 67/66/64 | 94/92/95 | 85/82/56 | 44/33/33 | 18/-/- |
Composition of modified artificial nutrient media
| Component | Medium composition, mg/l | ||||
|---|---|---|---|---|---|
| MSmod* | QLmod | DKWmod | NAMmod | NRMmod | |
| NH4NO3 | 1650.0 | 400.0 | 1416.0 | 900 | 530 |
| KNO3 | 1900.0 | 1800.0 | – | 250 | 550 |
| KH2PO4 | 170.0 | 270.0 | 265.0 | 1550 | 1300 |
| MgSO4×7H2O | 370.0 | 360.0 | 740.0 | 2050 | 1650 |
| K2SO4 | – | – | 1600.0 | – | – |
| Ca(NO3)2×4H2O | – | 833.8 | 1365 | 1050 | 700 |
| CaCl2×2H2O | 440.0 | – | 150 | 45 | 90 |
| FeSO4×7H2O | 27.80 | 33.8 | – | ||
| Na2MoO4×2H2O | 37.3 | 45.4 | – | ||
| Ferrilene 4.8 Orto-Orto | – | 114.63 | |||
| MnSO4×4H2O | 22.3 | 0.76 | 33.5 | 6.0 | 20.0 |
| H3BO3 | 6.2 | 4.80 | 11.0 | 6.5 | |
| ZnSO4×7H2O | 8.6 | – | 11.0 | 8,8 | |
| Zn(NO3)2 | – | 17.0 | – | – | |
| CuSO4×5H2O | 0.025 | 0.25 | 3.2 | 2.5 | |
| Na2MoO4×2H2O | 0.39 | 0.1 | 2.5 | ||
| CoCl×6H2O | 0.025 | – | |||
| KJ | 0.83 | 0.08 | – | ||
| NiSO4×6H2O | – | 0.0053 | – | ||
| BAP | 1.5 during introduction and multiplication and 0.3 during rhizogenesis | ||||
| IBA | 0.3 during introduction and multiplication and 1.5 during rhizogenesis | ||||
| Vitamin B1 | 1.0 | ||||
| Vitamin B6 | 0.6 | ||||
| Vitamin PP | 1.0 | ||||
| Vitamin C | 3.0 | ||||
| Meso-inositol | 100.0 | ||||
| Glycine | 1.0 | ||||
| Sucrose/glucose | Sucrose 30 × 103 almond; glucose 15 × 103 hazelnut | ||||
Self-intoxication of primary explants depending on the medium and growing conditions of donor plant varieties, %
| Variety | Nutrient medium | ||||
|---|---|---|---|---|---|
| MSmod | QLmod | DKWmod | NAMmod | NRMmod | |
| Hazelnut | |||||
| Trapezund | 100/16* | 98/11 | 83/4 | 70/2 | 24/1 |
| Jefferson | 98/19 | 91/12 | 77/9 | 63/1 | 22/0 |
| Tonda Gentile Romana | 100/32 | 98/26 | 90/11 | 66/3 | 29/2 |
| Almond | |||||
| E5 Borozan | 23/12 | 6/2 | 21/18 | 6/1 | 8/3 |
| M41 Alex | 19/12 | 5/2 | 12/9 | 0/0 | 7/2 |
| Georgia | 14/10 | 3/1 | 11/9 | 0/0 | 4/0 |
| Louise | 8/6 | - | 6/5 | 0/0 | 1/0 |
The height of regenerants on the 90th day of in vitro cultivation on different nutrient media
| Variety | Nutrient medium | ||||
|---|---|---|---|---|---|
| MSmod | QLmod | DKWmod | NAMmod | NRMmod | |
| Height of regenerants, mm | |||||
| Hazelnut | |||||
| Trapezund | 59/23* | 63/27 | 98/79 | 86/74 | 116/91 |
| Jefferson | 41/16 | 58/32 | 108/87 | 88/75 | 109/101 |
| Tonda Gentile Romana | 79/29 | 72/35 | 111/86 | 99/70 | 121/97 |
| Almond | |||||
| E5 Borozan | 84/21 | 93/73 | 39/12 | 123/98 | 97/69 |
| M41 Alex | 78/18 | 84/71 | 37/13 | 134/94 | 96/66 |
| Georgia | 71/13 | 69/63 | 33/15 | 103/84 | 81/61 |
| Louise | 45/12 | 67/64 | 23/12 | 101/85 | 77/63 |
Peculiarities of the photoautotrophic microclonal propagation of hazelnut plants with different pre-adaptation of the Tonda Gentile Romana variety
| Indicator | Mediumт | |||||
|---|---|---|---|---|---|---|
| coconut | pearlite | mixture of pearlite and coconut (1:1) | ||||
| Germination conditions | ||||||
| in vitro | micro greenhouse | in vitro | micro greenhouse | in vitro | micro greenhouse | |
| Survival rate, % | 58 | 67 | 60 | 69 | 69 | 94 |
| Damaged leaf area, % | 12 | 27 | 15 | 19 | 12 | 14 |
| The height of plants on the 14th day of growing FMP, mm | 189 | 213 | 162 | 184 | 221 | 267 |
The height of the progeny shoots with different duration of the dormant state of explant donors, mm
| Variety | Age of donors, days | |||
|---|---|---|---|---|
| 0 | 45 | 90 | 120 | |
| Hazelnut | ||||
| Trapezund | 99 | 114 | 139 | 131 |
| Jefferson | 98 | 114 | 154 | 152 |
| Tonda Gentile Romana | 96 | 107 | 133 | 138 |
| Almond | ||||
| E5 Borozan | 95 | 102 | 109 | 110 |
| M41 Alex | 91 | 100 | 103 | 101 |
| Georgia | 87 | 93 | 108 | 105 |
| Louise | 84 | 98 | 112 | 121 |
Shoot height of regenerants depending on the age of mother plants of explant donors at different periods of passage, mm
| Variety | Age of donors, days | ||||
|---|---|---|---|---|---|
| 30 | 45 | 90 | 120 | 180 | |
| Hazelnut | |||||
| Trapezund | 35/24/- | 49/41/32 | 97/84/81 | 112/109/115 | 116/114/119 |
| Jefferson | 36/31/29 | 41/32/29 | 98/95/83 | 123/127/119 | 122/127/124 |
| Tonda Gentile Romana | 39/30/- | 44/35/31 | 93/89/85 | 126/119/129 | 129/133/130 |
| Almond | |||||
| E5 Borozan | 28/-/- | 54/52/36 | 98/84/52 | 101/111/113 | 143/148/149 |
| M41 Alex | 17/-/- | 47/43/26 | 94/81/52 | 98/95/103 | 141/146/145 |
| Georgia | -/-/- | 36/33/- | 84/65/51 | 89/91/92 | 103/105/104 |
| Louise | 24/-/- | 39/37/30 | 85/72/56 | 96/99/99 | 107/109/110 |
The height of regenerants on different unloading media on the 90th day of propagation, mm
| Variety/media | Nutrient medium | |||||
|---|---|---|---|---|---|---|
| DKWmod | ULM* | DKWmod | NRMmod | ULM | NRMmod | |
| Passage | ||||||
| 5 | 6 | 7/12 | 5 | 6 | 7/12 | |
| Hazelnut | ||||||
| Trapezund | 79 | 100 | 111/77 | 91 | 109 | 133/98 |
| Jefferson | 87 | 106 | 110/83 | 101 | 112 | 139/104 |
| Tonda Gentile Romana | 86 | 113 | 122/91 | 97 | 108 | 151/ 99 |
| Variety/media | QLmod | ULM | QLmod | NAMmod | ULM | NAMmod |
| Passage | ||||||
| 5 | 6 | 7/10 | 5 | 6 | 7/10 | |
| Almond | ||||||
| E5 Borozan | 73 | 106 | 109/65 | 98 | 112 | 114/95 |
| M41 Alex | 71 | 102 | 106/54 | 94 | 116 | 109/81 |
| Georgia | 63 | 91 | 98/57 | 84 | 94 | 103/69 |
| Louise | 64 | 97 | 101/50 | 85 | 90 | /94/69 |
The height of regenerants on the 90th day of propagation with different selection of passages and cytokinin–auxin index, mm
| Variety | Multiplication | Induction of rhizogenesis | ||||
|---|---|---|---|---|---|---|
| Passage | ||||||
| 5 | 6 | 7/10 | 5 | 6 | 7/10 | |
| Cytokinin–auxin index | ||||||
| 1.5/0.3 | 0.3/1.5 | 1.5/0.3 | 0.3/1.5 | 1.5/0.3 | 0.3/1.5 | |
| Hazelnut | ||||||
| Trapezund | 91 | 114 | 109/90 | 109 | 129 | 130/99 |
| Jefferson | 101 | 121 | 97/94 | 117 | 132 | 139/103 |
| Tonda Gentile Romana | 97 | 124 | 111/96 | 103 | 121 | 132/97 |
| Almond | ||||||
| E5 Borozan | 98 | 103 | 100/91 | 102 | 107 | 103/104 |
| M41 Alex | 94 | 100 | 97/89 | 108 | 112 | 107/101 |
| Georgia | 84 | 91 | 89/83 | 94 | 99 | 97/91 |
| Louise | 85 | 93 | 86/74 | 96 | 97 | 98/90 |