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Effects of Ca2+?on Seed Germination Characteristics of Medicago sativa Under Salt Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年10期
Page:
64-68
Research Field:
Publishing date:

Info

Title:
Effects of Ca2+?on Seed Germination Characteristics of Medicago sativa Under Salt Stress
Author(s):
CHANG Qing-shan1ZHANG Li-xia2ZHENG Yi-qi1WANG Ning1ZHANG Qiao-ming1CHU Ai-xiang1
1.College of Forestry,Henan University of Science and Technology,Luoyang,Henan 471003;
2.College of Agriculture,Henan University of Science and Technology,Luoyang,Henan 471003
Keywords:
Medicago sativaCaCl2 solutionsalt stressseed germinationsubordinate function analysis
PACS:
S 551+.703.4
DOI:
-
Abstract:
The seeds of Medicago sativa pretreated in different CaCl2 solutions was used to study the effect of Ca2+ on its germination and growth under NaCl stress,which was expected to get the proper method for improving the salt resistance of seeds of Medicago sativa. The results showed that the values of germination rate,germination energy,germination index,vigor index of the seeds,fresh weight,seedling height and root length of the seedlings increased firstly,then declined with an increase of the concentrations of CaCl2 solution.The results from the subordinate function analysis indicated that the order (from strong to weak) of effects promoted by Ca2+was 20,40,10,80,5,0 mmol/L,20 mmol/L CaCl2 solution soaking seeds was the best treatment for Medicago sativa to improve the resistance to salt stress at the germination phase.

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Last Update: 2014-08-06