LY/T 1881-2010Embryo excision test for woody plants (English PDF)

Foreword

Appendix A of this standard is a normative appendix.

This standard is proposed and managed by the National Forest Seed Standardization Technical Committee.

This standard was drafted. Forestry Research Institute of Chinese Academy of Forestry.

Participated in the drafting of this standard. State Forestry Bureau and Seedling Work Station of the State Forestry Administration, Nanjing Forestry University, Yunnan Province, forestry seedlings work the terminus, the forest seedling station in Chifeng City, Inner Mongolia.

1 Scope

This standard specifies Appendix A, Table A. The technique for measuring the viability of 61 woody plant seeds isolated from 1 in vitro.

This standard applies to the test of seed viability of woody plant seed producers, operators and users.

2 Normative references

The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all Modifications (not including errata content) or revisions do not apply to this standard. However, parties to agreements based on this standard are encouraged to Whether the latest version of these files can be used. For undated references, the latest edition applies to this standard.

GB 2772-1999 Forest seed inspection procedures GB 7908 forest tree seed quality classification

3 Terms and definitions

The following terms and definitions apply to this standard.

Techniques and methods for in vitro culture of embryos of plants by aseptic manipulation under artificially controlled environmental conditions.

The potential for germination of seeds and the vitality of embryos usually refers to the number of viable (ie, living) seeds in a batch of seeds.

The percentage of the total number of seeds.

4 Procedures