How to select seeds of Bletilla striata? What are the methods of raising seedlings?

Bletilla striata is a perennial root herb of Bletilla striata of Orchidaceae. It is not only widely used in the field of traditional Chinese medicine, but also can be used as paste or extract bletilla gum in industry. At present, the market demand for Bletilla striata is increasing day by day, and there is little wild Bletilla striata left, which has caused an upsurge of farmers scrambling to grow Bletilla striata. However, due to the large number of varieties of Bletilla striata, provenance confusion is inevitable. If you want to grow Bletilla striata well, choosing a good seed is a very critical step.

How to select seeds of Bletilla striata?

The seeds of Bletilla striata are powdery. The pod of Bletilla striata is a whole flower and fruit, and there are powdered seeds of Bletilla striata in the pod. Generally speaking, each pod of Bletilla striata contains 10-300000 seeds, but the seeds of Bletilla striata do not have endosperm and can not germinate normally under natural conditions. When selecting seeds, we should first observe whether its color is white. If it is not white, it is not a good Bletilla striata seed.

In addition, if you buy seeds online, you must choose formal platforms and high-quality merchants. The variety depends on its own needs, for example, in the chemical industry, it is mostly purple Trigeminal Bletilla striata, while the Pharmacopoeia records that the medicinal use is mainly purple Trigeminal Bletilla striata. Other yellow flowers, Bletilla striata and so on are habitual articles and counterfeits of Bletilla striata.

What are the methods of raising seedlings?

1. Prepare nutritious soil

Bletilla striata seed seedlings should pay attention to the selection and cultivation of soil, Bletilla striata suitable to grow in a humid environment, the soil should choose sandy soil, but also to ensure that the soil has a good air permeability, which is more conducive to water infiltration. The culture soil will be gently compacted in the basin and then scraped flat, and then pour some nutrient solution on the basin.

2. Seeding

Bletilla striata seeds should be fertilized in time after planting, and organic fertilizer is recommended. Because Bletilla striata is not easy to cultivate, it is difficult for Bletilla striata to reproduce and cultivate in a large area. When fertilizing, we should pay attention to turning the soil evenly, so that the soil and fertilizer can be mixed evenly, so that it can grow normally.

3. Sowing management

Sow the seeds evenly in the prepared seedling basin, and after the sowing is finished, spray the seeds slowly to moisten the seeds, making the seeds fit with the nutritious soil. Water in time after sowing until the bottom of the seedling basin is soaked, once a night, keeping the temperature at 15-25 ℃. Generally, the seeds will turn green after a week, germinate in about 20 days, and there will be seedlings with 2 to 3 leaves in three months. Foliar fertilizer was sprayed 3-5 days after budding.

4. Transplanting

As the temperature rises gradually in spring, it is most suitable for transplanting. The air permeability and moisture retention of the matrix during transplanting directly determine the survival rate of Bletilla striata seedlings. Therefore, it is recommended to use perlite 30% + expanded vermiculite 30% + coconut bran 10% + carbon residue 10% + fresh loess 20% and other substrates for Bletilla striata tissue culture seedlings can achieve a very good effect, and the transplanting survival rate can reach more than 90%.

5. Post-broadcast management

After sowing for 3-5 months, check the number of seedlings and inter-seedlings to promote the growth of underground tubers. Timely irrigation during drought and regular weeding at the same time to remove early and small. Before the seeds turned green, the temperature was controlled at 15: 35 ℃. After the seeds germinated, the temperature was controlled at 15: 25 ℃.

At present, the cultivation of Bletilla striata is all over the provinces of the Yangtze River Basin in China. Although Bletilla striata has a good prospect with increased application scope and usage, the corresponding cost is also increasing, coupled with more planting techniques, so before planting, we must consider the market risk clearly.

With regard to the wonderful pictures and articles and popular comments on the seed selection and breeding of Bletilla striata, you may be interested in the following recommended contents of Nongxun. Welcome to read.

Agricultural products you may be interested in: national supply of high-quality Bletilla striata seeds