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Effects of Exogenous Calcium on Physiological Indexes of Pea Seedlings Under Salt Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年14期
Page:
24-27
Research Field:
Publishing date:

Info

Title:
Effects of Exogenous Calcium on Physiological Indexes of Pea Seedlings Under Salt Stress
Author(s):
LIU Xin-xingLUO Jun-jie
Institute of Biotechnology,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070
Keywords:
calciumsalt stressosmoregulation
PACS:
S 643.3
DOI:
-
Abstract:
Taking ‘Longwan No1’pea as test material,with mixed vermiculite and sand(1V∶1V)to cultured pea seedlings in the period of two leaves of one.Used seeds soaking and roots watering ways to regulate salt stress of NaCl(171 mmol/L),the contrast was nutrient solution with 171 mmol/L NaCl,the effect of calcium on activities of SOD and POD content of MDA,Pro and soluble sugar under salt stress were studied.The results showed that calcium treatment could significantly increase activities of SOD and POD in pea seedlings,and improve osmoregulation substances proline and soluble sugar content,decrease MDA content.Combined of various indicators,roots watering was more effective against salt stress than seeds soaking,and the optimal concentration of calcium was at 14 mmol/L.The seeds soaking only could promote the ability against salt stress in short times.

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Last Update: 2014-08-10