Breeding method for colored-leaf-variety of Portulacaria afra
A technology of golden branches and jade leaves and colorful leaves, which is applied in the field of plant tissue culture, can solve the problems that materials are easily polluted by the outside world, the lethality rate increases, and the effect is not ideal, so as to improve the mutation rate and transplant survival rate, shorten the breeding period, reduce the Effects of Mutation Type Limits
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[0036] Example 1 Breeding method of golden branch jade leaf color leaf variety of the present invention
[0037] 1. Obtain the tissue culture seedlings of golden branches and jade leaves
[0038] The plump young stems from the vigorously growing golden branches and jade leaves that year were inoculated to contain 0.5mg / L 6-BA, 0.05mg / LNAA, 5mg after disinfection and sterilization with 0.1% sodium hypochlorite, 75% alcohol, and 0.1% mercury. / L SNP, 0.8g / L colchicine, 30g / L sucrose and 7g / L agar MS medium for primary culture, followed by subculture and rooting culture, the secondary culture medium contains 0.6mg / L MS medium with 6-BA, 0.05mg / L NAA, 4mg / L SNP, 25g / L sucrose and 7.5g / L agar, pH 5.9, rooting medium containing 0.4mg / L 6-BA, 0.03mg / L NAA, 4mg / L SNP, 25g / L sucrose and 7.5g / L agar in 1 / 2MS medium, pH 5.9; rooting culture for 10-15 days to obtain golden twig jade leaf tissue culture seedlings.
[0039] In the experiment, a control plant was set. The control plant was not a...
Example Embodiment
[0054] Example 2 Breeding method of golden branch jade leaf color leaf variety of the present invention
[0055] The plump young stems from the vigorously growing golden branches and jade leaves that year were inoculated to contain 0.5mg / L 6-BA, 0.05mg / LNAA, 5mg after disinfection and sterilization with 0.1% sodium hypochlorite, 75% alcohol, and 0.1% mercury. / L SNP, 0.5g / L colchicine, 30g / L sucrose and 7g / L agar on MS medium. After three stages of primary culture, secondary culture and rooting culture (the medium for secondary culture and rooting culture is the same as in Example 1)). Take roots and cultivate for 10-15 days to obtain tissue culture seedlings of golden branches and jade leaves.
[0056] The radiation treatment of the golden twig jade leaf tissue culture seedlings, the transplanting and observation of the radiation tissue culture seedlings, the screening and propagation methods of the variant plants are the same as those in Example 1.
Example Embodiment
[0057] Example 3 Breeding method of golden branch jade leaf color leaf variety of the present invention
[0058] The plump young stems from the vigorously growing golden branches and jade leaves that year were inoculated to contain 0.5mg / L 6-BA, 0.05mg / LNAA, 5mg after disinfection and sterilization with 0.1% sodium hypochlorite, 75% alcohol, and 0.1% mercury. / L SNP, 1g / L colchicine, 30g / L sucrose and 7g / L agar on MS medium. After three stages of primary culture, secondary culture and rooting culture (subculture and rooting culture medium are the same as in Example 1). Take roots and cultivate for 10-15 days to obtain tissue culture seedlings of golden branches and leaves.
[0059] The radiation treatment of the golden twig jade leaf tissue culture seedlings, the transplanting and observation of the radiation tissue culture seedlings, the screening and propagation methods of the variant plants are the same as those in Example 1.
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