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关于林木种子质量分级问题的讨论(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2001年04期
Page:
54-56
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Discussion on the Classification of Forest Tree Seed Quality
Article ID:
1000-2006(2001)04-0054-03
Author(s):
SHEN Yong bao SHI Ji sen
Nanjing Forestry University,Southern Tree Seed Inspection Centre, Nanjing 210037,China
Keywords:
Forest tree seedSeed quality classificationStatistical hypothesis test
Classification number :
S722.1
DOI:
10.3969/j.jssn.1000-2006.2001.04.013
Document Code:
A
Abstract:
This paper shows the problems on classification of seed quality based on 《Classification of forest tree seed quality》(GB 7908-1999). For example, to Pinus yunnanensis ,seed quality with 76% germination is considered as the first grade and seed quality with 74% germination is for the second grade. In fact, there are no marked differences between 76% and 74%. It also shows the method to solve that problem by statistical hypothesis test. At the same time, it points out that seed quality classification is not able to indicate real seed quality well according to GB 7908-1999.

References

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Last Update: 1900-01-01