How to sow and reproduce Niu Di seedlings?

How to sow and reproduce Niu Di seedlings?

Niuli belongs to the genus Caulis of the butterfly family, alias Meidou, Dali and Niu. It is a common homologous plant of medicine and food distributed in Guangdong, Guangxi, Hainan and other places in China. In recent years, wild cattle resources are on the verge of depletion, the planting scale is expanding, and the demand for seedlings is increasing, so there is an urgent need for relatively mature high-quality seedling cultivation techniques. At present, the main ways of vigorous propagation of cattle are tissue culture and seed propagation. although the technology of tissue culture and propagation can realize the mass propagation of seedlings, its production operation is complicated and the cost is high, so it is uncertain whether it can produce high yield. therefore, seed propagation is a common way of raising seedlings adopted by seedling enterprises and farmers at present. Because the seeds mature from December to February of the following year, under natural conditions, it takes a long time for seeds to germinate, the germination rate is low, and the seedlings grow slowly, which is not conducive to the standardization and large-scale production of high-quality cattle seedlings, and is not conducive to the production of high-quality medicinal materials.

1. Collect fully mature pods, dry, pick out cracked pods and shelled seeds in time, uncracked pods, gently clip them with pliers, and take out seeds.

two。 Choose seeds that are full, mature, free from mechanical damage and free from diseases and insect pests.

3. The fresh seeds were soaked in 45 ℃ of warm water for 4 hours.

4. Take the tray of suitable size and wash it with clean water; boil the 5min with the same size of the tray in boiling water and take out to cool; spread 4 layers of wet gauze on the bottom of the tray, spread the cattle seeds evenly and monolayer on the gauze, cover the whole tray, and cover the seeds with 4 layers of wet gauze in the upper part.

5. Put the seed tray in the incubator or artificial climate box, and the culture conditions are as follows: temperature 40 ℃, humidity 85%.

6. Rinse the upper and lower layers of gauze with clean water every day, wash the cultivated seeds every 3 days, and pick out the rotten seeds, rinse the intact seeds with clean water for 3 times until there is no stickiness on the seed surface, continue to culture according to steps (4) and (5), and collect the sprouting seeds [Jishan Huayao].

7. The chopped coconut bran was dried in strong light and evenly mixed with broken tillage soil according to the volume ratio at 1:2, and the national standard organic fertilizer 80kg was added to each cubic mixture to make seedling substrate; the seedling substrate was packed into seedling containers with high 10cm and 15cm in diameter, and the seedling containers were placed neatly in the nursery.

8. Make a small hole in the 2cm in the seedling substrate, put the seeds in the hole with the bud down, cover the substrate at the top, thickness 1cm, and pour water through.

9. The border is covered with a small plastic arch shed with high 50cm, which is compacted around; when the highest ambient temperature is ≤ 20 ℃, the seeded seedling container is placed in the plastic arch shed, and the plastic arch shed is removed when the maximum ambient temperature is more than 25 ℃; the humidity of the whole seedling raising process is controlled at 80%.

10. 0. 1% compound fertilizer aqueous solution was sprayed every 12 days at seedling height 11cm; when seedling height 35cm, the main stem was trimmed to high 12cm, and lateral branches were cut off, trimmed twice at seedling stage; after 6 months of cultivation, it could be out of the nursery.