|Table of Contents|

Effects of Different Temperature Stratification Treatments on Seed Germination of Schisandra chinensis Seed During Dormancy(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年20
Page:
140-144
Research Field:
Publishing date:

Info

Title:
Effects of Different Temperature Stratification Treatments on Seed Germination of Schisandra chinensis Seed During Dormancy
Author(s):
LI Yang1; YU Xihong1; 2; JIANG Xinmei1; 2; WANG Jian2
1.Key Laboratory of Biology and Genetic Improvement of Horticultural Crops，Northeast Region，Ministry of Agriculture，Northeast Agriculture University,Harbin,Heilongjiang 150030；2.Heilongjiang Collaborative Innovation Center for Development and Utilization of Forest Resourcest，Harbin,Heilongjiang 150040
Keywords:
Schisandra chinensis; temperature change stratification; respiration substrate; hormone
PACS:
-
DOI:
10.11937/bfyy.20170766
Abstract:
The seeds of Schisandra chinensis were used as test materials，using the method of different temperature stratification，the effects of temperature stratification in the process of embryo after ripening of seed dormancy of Schisandra chinensis.were studied.The results showed that 12 ℃ stratification for 90 days (T1) and 12 ℃ stratification combined with -4 ℃stratification (T3，T4，T5 treatment，treatment days were 90 days) were benefit for embryo development of Schisandra chinensis seed，the ratio of embryo sharing were raised after treatment.While the variable temperature stratification was more beneficial for embryo development than 12 ℃ stratification for 90 days.The development of seed embryo was the best after treated by 12 ℃ stratification for 60 days combined with -4 ℃ stratification for 30 days(T5) compared with other treatments.In the progress of breaking dormancy，the content of soluble sugar，soluble protein and abscisic acid were decreased over time，while，the content of gibberellin decreased after an initial increase，which indicated that more soluble sugar and soluble protein be consumed and endogenous hormone such as abscisic acid，gibberellin could speed up embryo maturation and break dormancy of Schisandra chinensis seed.

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Last Update: 2017-11-01