|Table of Contents|

Effect on Germination Characteristics With Different Treatments for Seeds of Daphne giraldii(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年17
Page:
136-140
Research Field:
Publishing date:

Info

Title:
Effect on Germination Characteristics With Different Treatments for Seeds of Daphne giraldii
Author(s):
YAN Fang1; WANG Qinli1; MAO Zhuhong2; ZHANG Yajuan1
(1.Hexi Ecological and Oasis Agricultural Research Institute，Hexi University，Zhangye，Gansu 734000;2.Gansu Taikang Pharmaceutical Company，Wuwei，Gansu 733000)
Keywords:
Daphne giraldii Nitsche.; testa; absorption rate; germination rate
PACS:
-
DOI:
10.11937/bfyy.201517036
Abstract:
Taking Daphne giraldii seeds as test material，to break the dormancy and improve the germination rate of Daphne giraldii seeds，the shapes and germination characteristics of Daphne giraldii seeds were studied.Several physiological indexes like the weight per thousand seeds，plumpness，content of moisture，seed viability，and the rate of water absorption were measured.The germination rate of Daphne giraldii seeds was determined under different treatments of chemical matter，stratification，soaking in hot water，and different matrixes.The results　showed that the content of moisture of Daphne giraldii seeds was 7.12%，the rate of water absorption with testa was 33.4%,without testa was 60.3%.Chemical matter treatment and soaking in hot water could not break seeds dormancy completely.The germination rate were 61.93% under chemical matter treatment combined with stratification treatment.The germination rate on flat paper and crepe paper was 65.8% and 53.2%，respectively.Testa was not the main limiting factor of the germination of Daphne giraldii seeds.With the seeds soaked in 200 mg/L GA3 and 25 mg/L 6-BA solutions for 10 hours combined with stratification treatment at -5℃ for 70 days can improve the germination rate of the seeds obviously，the most appropriate matrix was flate paper.

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Last Update: 2015-10-10