Objective:

2

To study the quality of

Acanthopanax senticosus

seedlings

develop grading standards and optimize the best analytical method.

Method:

2

Observing and measuring the plant height

diameter

leaf area

root length

chlorophyll content and other main agronomic traits of

A

.

senticosus

seedlings from different habitats(Baoqing

Qitaihe

Dongfanghong

Yilan

Acheng

Raohe Linkou and Yabuli) in each year. K-cluster grading method

principal component evaluation factor K-cluster analysis method

standard deviation method for grading

three classification methods were evaluated with different levels of seedling survival rate as indicators.

Result:

2

The direct K-cluster analysis method was used to determine the quality of

A

.

senticosus

seedlings as the best method. The seedlings of

A

.

senticosus

were divided into 3 grades

among in the first level the seedling height is≥13 cm

the stem diameter is≥0.37 cm

the root length is≥8 cm

the leaf area is≥28 cm

2

the chlorophyll content is≤31

the main origin is Baoqing

Qitaihe area. In the second level the seedling height is 8-13 cm

the stem diameter is 0.30-0.37 cm

the root length is 6-8 cm

the leaf area is 13-28 cm

2

the chlorophyll content is 31-32

and the main origin is Acheng

Dongfanghong

Raohe area. In the third level the seedling height is 5-8 cm

the stem diameter is 0.26-0.30 cm

the root length is 5-6 cm

the leaf area is 5-13 cm

2

the chlorophyll content is 32-38

and the main origin is Yabuli

Yilan and Linkou.

Conclusion:

2

In this experiment

the quality grading standards of

A

.

senticosus

seedlings were preliminarily established

Baoqing and Qitaihe can be used as a high-quality production area for breeding seeds in the Heilongjiang province.which provided the basis for quality evaluation of

A

.

senticosus

seedling planting and artificial cultivation.