Method for reducing aerial root of tissue culture seedling of hydrangea
A technique for hydrangea group and aerial rooting, which is applied in the field of plant tissue culture, can solve the problems of hydrangea aerial rooting and the like, and achieves the effects of low price, saving tissue culture costs, and simplifying transplanting procedures.
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Embodiment 1
[0050] A: Add 50 mL of perlite to the culture bottle, then add 25 mL of liquid rooting medium (1 / 2 B5 basic medium + indole butyric acid (IBA) 0.2, 0.5, 1.0 mg / L + sucrose 10 g / L1, adjust pH to 5.8), sterilized by high pressure steam at 121°C for 20 minutes, and set aside;
[0051] B: Under sterile conditions, the terminal buds of hydrangea tissue culture seedlings (1-2cm in height, with more than 2 leaves) are inserted into the prepared rooting medium, and cultivated in the cultivation room for 30-50 days ( See figure 1 A, figure 2 ).
[0052] C: Take out the hydrangea tissue culture seedlings from the perlite, without cleaning and hardening, directly transplant the tissue culture seedlings into a substrate with peat soil: perlite volume ratio of 1:1;
[0053] The culture conditions of the above steps A and B are respectively: the light is 1500-2000lx, and the light time is 16h.d -1 , the culture temperature is 23-25°C;
[0054] The transplanting and cultivation conditi...
Embodiment 2
[0060] The cultivation program, cultivation conditions and cultivation management of the indoor potted field are the same as in Example 1.
[0061] The specific steps are:
[0062] A: Add 50mL of rooting medium to the culture bottle (1 / 2 B5 basic medium + IBA respectively set three ratios of 0.2, 0.5, 1.0mg / L + sucrose 10g / L + agar 7g / L, adjust the pH to 5.8) , sterilized by high-pressure steam at 121°C for 20 minutes;
[0063] B: Insert the terminal buds of hydrangea tissue cultured seedlings (1-2cm in height, with more than 2 leaves) into the rooting medium of step A under aseptic conditions in the ultra-clean workbench, and cultivate them in the culture room for 30- 50 days;
[0064] C: Take out the hydrangea tissue-cultured seedlings from the rooting medium added with agar in step B, wash the root culture medium, and directly transplant the hydrangea tissue-cultured seedlings into peat soil: perlite volume ratio of 1:1 In the substrate, the transplanting survival rate c...
Embodiment 3
[0070] The cultivation program, cultivation conditions and cultivation management in the cultivation room and the potted field are the same as in Example 1.
[0071] The specific steps are:
[0072] A: Add about 50 mL of perlite to the culture bottle, then add 0, 15 mL, 25 mL, and 35 mL of liquid rooting medium (1 / 2 B5 basic medium + IBA 0.5 mg / L + sucrose 10 g / L, adjust the pH to 5.8) , sterilized by high-pressure steam at 121°C for 20 minutes;
[0073] B: In the sterile environment of the ultra-clean workbench, put the terminal buds of hydrangea tissue cultured seedlings (1-2 cm in height, more than 2 leaves) into the rooting medium prepared in step A, and cultivate them in the culture room for 30 -50 days (see Figure 4 A, B, C).
[0074] C: Take out the hydrangea tissue culture seedlings from the perlite, without cleaning and hardening, directly transplant the hydrangea tissue culture seedlings into the substrate with a peat soil:perlite volume ratio of 1:1, and the tra...
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