Fast reproducing method for high quality seedling of dendrobium officinale
A high-quality technology of Dendrobium officinale, which is applied in the field of bioengineering, can solve the problems of difficult seed acquisition, low reproduction coefficient, and rapid deterioration of seedling quality, and achieves a unique medium composition, high transplant survival rate, and first-class seedling quality. Effect
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Embodiment 1
[0017] 1. Materials: The unexpanded leaves of Dendrobium candidum artificially cultivated in Xishuangbanna, Yunnan Province.
[0018] 2. The method for explant induction material disinfection: use a new surgical blade to cut out the new buds of Dendrobium candidum cultivated in the greenhouse from the base, and rinse with tap water for 10 minutes. Put the explant on the ultra-clean workbench, soak it with 75% alcohol for 45 seconds, and then soak it with mercuric chloride solution with a mass percentage concentration of 1 g / L and 2 to 3 drops of Tween-80 for 8 minutes. Rinse 3 times with sterile water, peel off the outer leaves with a scalpel, then put them in mercuric chloride solution with a mass percentage concentration of 1 g / L, soak in 2-3 drops of Tween-80 for 5 minutes, rinse with sterile water for 3 Peel off the leaves layer by layer until the growth point is exposed, and inoculate on 1 / 2MS solid medium.
[0019] 3. Protocorm induction: Cut out the stem segment or sma...
Embodiment 2
[0027] The shoots of wild dendrobium in Guangxi province were used as explants. The basic operation method is consistent with embodiment 1. But its protocorm induction medium is: 1 / 2MS+6-BA5.0 mg / L+NAA1.0 mg / L+potato juice 200 g / L; protocorm subculture proliferation medium is: 1 / 2MS+6 -BA3mg / L+NAA0.5mg / L+Potato juice 200g / L+activated carbon 0.5g / L+Agar 7g / L solid medium with 1 / 2MS+6-BA3.0mg / L+NAA0 .5 mg / L + potato juice 200 g / L + activated carbon 0.5 g / L liquid medium; seedling medium: 1 / 2MS + 6-BA0.5 mg / L + NAA2.0 mg / L + potato Juice 200 g / L + activated carbon 0.2 g / L; strong seedling rooting medium: 1 / 2MS + NAA 1.5 mg / L + banana homogenate 100 g / L + sugar 30 g / L + activated carbon 0.2 g / L. After 40 days of strong seedling rooting and culture, the average number of roots is 4.8, the average plant height is 9.2 cm, and the average fresh weight is 2.8 grams. The survival rate of transplanted test-tube seedlings can reach 98%.
[0028]All the above solid mediums contain 20 g...
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