A method for rapidly propagating its seedlings by using the hypocotyls of Zouma embryo
A technology of embryo and hypocotyl, applied in the field of plant biology, can solve the problems that have not been reported in the research, and achieve the effect of broad application prospect, strong practical operability and large yield
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[0045] Preparation of culture medium: Prepare the culture medium according to conventional methods, adjust the pH value to 5.8, sterilize at 124°C for 25 minutes after aliquoting, and set aside.
[0046] Seed collection, processing and disinfection: The mature fruits with deep red peel and no damage from diseases and insect pests were collected from Zoumatai Germplasm Garden of Guangxi Institute of Botany. The pulp and seed coat were removed, cleaned with tap water, and full-grown seeds were selected. On the ultra-clean workbench, first soak it in an alcohol solution with a volume fraction of 70-75% for 30 seconds, then soak it in a sodium hypochlorite solution with a mass fraction of 15% for 10-15 minutes, and then rinse it with sterile water 5 times. Blot the moisture on the surface with sterile filter paper for later use.
Embodiment 1
[0048] Utilize the method for rapidly propagating its seedling of Zouma embryo hypocotyl, comprises the following specific steps:
[0049] (1) Select well-grown Zoumatai seeds, add gibberellin aqueous solution with a concentration of 120 mg / L after surface disinfection and sterilization, the volume ratio of the solution to the seeds is 5:1, at a temperature of 35±2°C and a rotational speed of Soak for 24 hours on a shaker at 130~138 rpm, and rinse with sterile water.
[0050] (2) Inoculate the treated seeds in the germination medium, the germination medium is: MS+6-BA 0.5 mg / L+NAA 0.1 mg / L, at the same time add agar powder 5 g / L, sucrose 30 g / L , 0.2% activated carbon, pH 5.8; culture conditions are dark culture at a temperature of 28±2°C. After 5-7 days of culture, the radicle germinates and elongates, and the hypocotyl elongates 2-3cm after 40-50 days, and the cotyledons unfold to form young shoots. The germination rate reaches 97.5%, see figure 1 .
[0051] (3) After th...
Embodiment 2
[0056] Utilize the method for rapidly propagating its seedling of Zouma embryo hypocotyl, comprises the following specific steps:
[0057] (1) Select well-grown Zoumatai seeds, add gibberellin aqueous solution with a concentration of 150 mg / L after surface disinfection and sterilization, the volume ratio of the solution to the seeds is 5:1, at a temperature of 35±2°C and a rotational speed of Soak for 24 hours on a shaker at 130~138 rpm, and rinse with sterile water.
[0058] (2) Inoculate the treated seeds in the germination medium, the germination medium is: MS+6-BA 1.0 mg / L+NAA 0.2 mg / L, at the same time add agar powder 5 g / L, sucrose 30 g / L , 0.2% activated carbon, pH 5.8; culture conditions are dark culture at a temperature of 28±2°C. The germination rate was 85.2% after 40 days of cultivation.
[0059] (3) After the seeds germinate, cut the immature hypocotyls and insert them into the adventitious bud induction medium to induce adventitious buds. The hypocotyl adventit...
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