What do you mean by seedlings and mature seedlings?

The meanings of raw seedlings and mature seedlings are as follows:

1, seedling

Refers to the seedlings that have not been transplanted or cut off in advance in the production process from seedlings to finished seedlings. If directly used in greening projects, the survival rate is low. The semi-finished products purchased by the company are mostly seedlings, mostly small seedlings, which have low survival rate and cannot be directly used for engineering planting. Seedlings are mainly produced by nurseries and farmers, and the value of seedlings is mainly increased through natural growth.

2. Mature seedlings

Corresponding to raw seedlings, it refers to seedlings that have undergone at least one transplanting or root cutting treatment in the production process from seedling to finished seedlings. Because of its high survival rate and low follow-up management cost, the economic value of seedlings of the same variety and specifications is generally 30%-40% higher than that of seedlings. Mainly depends on the number of roots and fibrous roots, and there are many mature seedlings.

Seedling purchase

1, depending on the variety.

Rootstocks and scions of high-quality fruit seedlings have strong affinity. When purchasing, you should ask the source of the scion of the seedling-raising unit or provide the contact information of the scion unit to judge the variety purity of the scion. The specific purchase should be adapted to the land, trees and varieties.

Step 2 look at the root system

High-quality fruit tree seedlings should have complete, dense and evenly distributed roots, at least three lateral roots with a root diameter of more than 0.4 cm and certain fibrous roots with a root length of 20 cm -30 cm.

3. Look at the plant height and plant type

The height of high-quality fruit tree seedlings is generally required to be around 1 m, the stem diameter is required to be 0.8 cm ~ 1 cm, the plant type is upright and not bent, the inclination is not more than 15 degrees, and there are 4 -5 good branches in the plastic belt, which are strong and full, and the stems are light green, elastic and harmless.

4. Look at these seedlings

High-quality fruit tree seedlings should have more than 6 full and full leaf buds in the range of 40 cm -80 cm below the fixed stem position, so that better branches can be issued after the fixed stem position. If it is an evergreen fruit tree seedling, the leaves should be intact without shedding, the leaves should be dark green without diseased spots, the terminal buds should be full and full, and there should be more than 8 leaf buds with full buds above the fixed stem position and in the plastic belt.