|Table of Contents|

Abating Effect of Applying Zn2+ on Salt Stress Damage of  Chengxian Purple Leather Early Garlic in Gansu Province(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2017年10
Page:
1-5
Research Field:
Publishing date:

Info

Title:
Abating Effect of Applying Zn2+ on Salt Stress Damage of  Chengxian Purple Leather Early Garlic in Gansu Province
Author(s):
YE Wenbin1; 2; FAN Liang3; WANG Yu1; 2; WANG Han1; 2; WANG Rangjun1; 2; YANG Xiaolu1; 2
(1.School of Agriculture and Forestry Technology，Longnan Teachers College，Chengxian，Gansu 742500;2.Center for Research & Development of Longnan Characteristic Agro-bioresources，Chengxian,Gansu 742500；3.School of Mathematics and Information，Longnan Teachers College，Chengxian，Gansu 742500)
Keywords:
exogenous Zn2+; Chengxian purple leather early garlic; salt stress; damage; relief
PACS:
-
DOI:
10.11937/bfyy.201710001
Abstract:
With Chengxian purple leather early garlic bulb seeds as test material，at different concentrations of Zn2+（1.0×10-6,10-5,10-4,10-3 mol?L-1）on seeds under 1.5×10-2 mmol?L-1 stress salt，the seed germination，seedling growth and the contents of osmotic adjustment substances and 4 kinds of antioxidant enzyme activities were determined.The results showed that，under the single NaCl stress，garlic bulb seed germination and seedling growth were severely suppressed，after adding different concentrations of Zn2+，the germination rate of garlic bulbs and the salt tolerance of seedlings were significantly increased.When the concentration of Zn2+ was 1.0×10-6 mol?L-1，garlic seed germination rate，germination index and shoot length，root length，and seedling fresh weight，seedling dry weight，root fresh weight and root dry weight，SOD，POD，CAT and APX antioxidant enzymes activity reached the maximum，and the content of soluble sugar，free proline and MDA decreased to the lowest level.Therefore，exogenous Zn2+ could alleviate the optimal concentration of NaCl stress on garlic bulb seed germination and seedling injury，the optimum concentration was 1.0×10-6 mol?L-1.

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Last Update: 2017-05-27