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金钱松种子贮藏过程中的生理生化特征研究(PDF)

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

Issue:
2012年02期
Page:
52-58
Column:
研究论文
publishdate:
2012-04-10

Article Info:/Info

Title:
Study on the physiological and biochemical properties of Pseudolarix kaempferi (Lindl.)seeds under seed preservation
Author(s):
LIAO Wenyan GAO Handong*
Southern Tree Seed Inspection Center of Naitional Forestry Administration, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037,China
Keywords:
Pseudolarix kaempferi seed storage physiological and biochemical property
Classification number :
S722
DOI:
10.3969/j.jssn.1000-2006.2012.02.011
Document Code:
A
Abstract:
A study was conducted on the germination, seed viability and some physiological and biochemical indices of Pseudolarix kaempferi seeds collected from Arboretum of Nanjing Forestry University on October 24, 2009 under the condition of seed preservation. The results were described as follows:(1)Critical humidity was 3%-4%. Germination rate, seed viability and POD activity these 3 indices each exists a significant negative correlation with moisture content. The relativity were ordered in a descending row as seed viability, POD activity and germination rate.(2)Soluble protein, crude fat, MDA content, free proline content, SOD activity and POD activity these 6 indices each exists a significant negative correlation with germination rate and seed viability. Relativity of correlation between germination rate and these 6 indices were ordered in a descending row as SOD activity, MDA content, soluble protein, free proline content, POD activity and crude, and the relativity of correlation between seed viability and these 6 indices were ordered in a descending row as SOD activity, POD activity, free proline content. crude fat, soluble protein and MDA content.(3)Negative correlation were found between O</sup><sup>-· 2 content and soluble sugar and also starch content, while positive correlation between O</sup><sup>-· 2 content and MDA content were significant.(4)No significant correlation was found between soluble sugar and starch content these 2 indices and other physiological and biochemical indices.

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Last Update: 2012-04-10